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SubjectComparison between three trees (was: Latest numa/core release, v17)
Warning: This is an insanely long mail and there a lot of data here. Get
coffee or something.

This is another round of comparisons between the latest released versions
of each of three automatic numa balancing trees that are out there.

From the series "Automatic NUMA Balancing V5", the kernels tested were

stats-v5r1 Patches 1-10. TLB optimisations, migration stats
thpmigrate-v5r1 Patches 1-37. Basic placement policy, PMD handling, THP migration etc.
adaptscan-v5r1 Patches 1-38. Heavy handed PTE scan reduction
delaystart-v5r1 Patches 1-40. Delay the PTE scan until running on a new node

If I just say balancenuma, I mean the "delaystart-v5r1" kernel. The other
kernels are included so you can see the impact the scan rate adaption
patch has and what that might mean for a placement policy using a proper
feedback mechanism.

The other two kernels were

numacore-20121123 It was no longer clear what the deltas between releases and
the dependencies might be so I just pulled tip/master on November
23rd, 2012. An earlier pull had serious difficulties and the patch
responsible has been dropped since. This is not a like-with-like
comparison as the tree contains numerous other patches but it's
the best available given the timeframe

autonuma-v28fast This is a rebased version of Andrea's autonuma-v28fast
branch with Hugh's THP migration patch on top. Hopefully Andrea
and Hugh will not mind but I took the liberty of publishing the
result as the mm-autonuma-v28fastr4-mels-rebase branch in
git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma.git

I'm treating stats-v5r1 as the baseline as it has the same TLB optimisations
shared between balancenuma and numacore. As I write this I realise this may
not be fair to autonuma depending on how it avoids flushing the TLB. I'm
not digging into that right now, Andrea might comment.

All of these tests were run unattended via MMTests. Any errors in the
methodology would be applied evenly to all kernels tested. There were
monitors running but *not* profiling for the reported figures. All tests
were actually run in pairs, with and without profiling but none of the
profiles are included, nor have I looked at any of them yet. The heaviest
active monitor reads numa_maps every 10 seconds and is only read one per
address space and reused by all threads. This will affect peak values
because it means the monitors contend on some of the same locks the PTE
scanner does for example. If time permits, I'll run a no-monitor set.

Lets start with the usual autonumabench.

AUTONUMA BENCH
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
User NUMA01 75064.91 ( 0.00%) 24837.09 ( 66.91%) 31651.70 ( 57.83%) 54454.75 ( 27.46%) 58561.99 ( 21.98%) 56747.85 ( 24.40%)
User NUMA01_THEADLOCAL 62045.39 ( 0.00%) 17582.23 ( 71.66%) 17173.01 ( 72.32%) 16906.80 ( 72.75%) 17813.47 ( 71.29%) 18021.32 ( 70.95%)
User NUMA02 6921.18 ( 0.00%) 2088.16 ( 69.83%) 2226.35 ( 67.83%) 2065.29 ( 70.16%) 2049.90 ( 70.38%) 2098.25 ( 69.68%)
User NUMA02_SMT 2924.84 ( 0.00%) 1006.42 ( 65.59%) 1069.26 ( 63.44%) 987.17 ( 66.25%) 995.65 ( 65.96%) 1000.24 ( 65.80%)
System NUMA01 48.75 ( 0.00%) 1138.62 (-2235.63%) 249.25 (-411.28%) 696.82 (-1329.37%) 273.76 (-461.56%) 271.95 (-457.85%)
System NUMA01_THEADLOCAL 46.05 ( 0.00%) 480.03 (-942.41%) 92.40 (-100.65%) 156.85 (-240.61%) 135.24 (-193.68%) 122.13 (-165.21%)
System NUMA02 1.73 ( 0.00%) 24.84 (-1335.84%) 7.73 (-346.82%) 8.74 (-405.20%) 6.35 (-267.05%) 9.02 (-421.39%)
System NUMA02_SMT 18.34 ( 0.00%) 11.02 ( 39.91%) 3.74 ( 79.61%) 3.31 ( 81.95%) 3.53 ( 80.75%) 3.55 ( 80.64%)
Elapsed NUMA01 1666.60 ( 0.00%) 585.34 ( 64.88%) 749.72 ( 55.02%) 1234.33 ( 25.94%) 1321.51 ( 20.71%) 1269.96 ( 23.80%)
Elapsed NUMA01_THEADLOCAL 1391.37 ( 0.00%) 392.39 ( 71.80%) 381.56 ( 72.58%) 370.06 ( 73.40%) 396.18 ( 71.53%) 397.63 ( 71.42%)
Elapsed NUMA02 176.41 ( 0.00%) 50.78 ( 71.21%) 53.35 ( 69.76%) 48.89 ( 72.29%) 50.66 ( 71.28%) 50.34 ( 71.46%)
Elapsed NUMA02_SMT 163.88 ( 0.00%) 48.09 ( 70.66%) 49.54 ( 69.77%) 46.83 ( 71.42%) 48.29 ( 70.53%) 47.63 ( 70.94%)
CPU NUMA01 4506.00 ( 0.00%) 4437.00 ( 1.53%) 4255.00 ( 5.57%) 4468.00 ( 0.84%) 4452.00 ( 1.20%) 4489.00 ( 0.38%)
CPU NUMA01_THEADLOCAL 4462.00 ( 0.00%) 4603.00 ( -3.16%) 4524.00 ( -1.39%) 4610.00 ( -3.32%) 4530.00 ( -1.52%) 4562.00 ( -2.24%)
CPU NUMA02 3924.00 ( 0.00%) 4160.00 ( -6.01%) 4187.00 ( -6.70%) 4241.00 ( -8.08%) 4058.00 ( -3.41%) 4185.00 ( -6.65%)
CPU NUMA02_SMT 1795.00 ( 0.00%) 2115.00 (-17.83%) 2165.00 (-20.61%) 2114.00 (-17.77%) 2068.00 (-15.21%) 2107.00 (-17.38%)

numacore is the best at running the adverse numa01 workload. autonuma does
respectably and balancenuma does not cope with this case. It improves on the
baseline but it does not know how to interleave for this type of workload.

For the other workloads that are friendlier to NUMA, the three trees
are roughly comparable in terms of elapsed time. There is not multiple runs
because it takes too long but there is a strong chance we are within the noise
of each other for the other workloads.

Where we differ is in system CPU usage. In all cases, numacore uses more
system CPU. It is likely it is compensating better for this overhead
with better placement. With this higher overhead it ends up with a tie
on everything except the adverse workload. Take NUMA01_THREADLOCAL as
an example -- numacore uses roughly 4 times more system CPU than either
autonuma or balancenuma. autonumas cost could be hidden in kernel threads
but that's not true for balancenuma.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 274653.21 92676.27 107399.17 130223.93 142154.84 146804.10
System 1329.11 5364.97 1093.69 2773.99 1453.79 1814.66
Elapsed 6827.56 2781.35 3046.92 3508.55 3757.51 3843.07

The overall elapsed time is differences in how well numa01 is handled. There
are large differences in the system CPU time. It's using almost twice
the amount of CPU as either autonuma or balancenuma.

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 195440 172116 168284 169788 167656 168860
Page Outs 355400 238756 247740 246860 264276 269304
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 42264 29117 37284 47486 32077 34343
THP collapse alloc 23 1 809 23 26 22
THP splits 5 1 47 6 5 4
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 523123 180790 209771
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 543 187 217
NUMA PTE updates 0 0 0 842347410 295302723 301160396
NUMA hint faults 0 0 0 6924258 3277126 3189624
NUMA hint local faults 0 0 0 3757418 1824546 1872917
NUMA pages migrated 0 0 0 523123 180790 209771
AutoNUMA cost 0 0 0 40527 18456 18060

Not much to usefully interpret here other than noting we generally avoid
splitting THP. For balancenuma, note what the scan adaption does to the
number of PTE updates and the number of faults incurred. A policy may
not necessarily like this. It depends on its requirements but if it wants
higher PTE scan rates it will have to compensate for it.

Next is the specjbb. There are 4 separate configurations

multi JVM, THP
multi JVM, no THP
single JVM, THP
single JVM, no THP

SPECJBB: Mult JVMs (one per node, 4 nodes), THP is enabled
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Mean 1 30969.75 ( 0.00%) 28318.75 ( -8.56%) 31542.00 ( 1.85%) 30427.75 ( -1.75%) 31192.25 ( 0.72%) 31216.75 ( 0.80%)
Mean 2 62036.50 ( 0.00%) 57323.50 ( -7.60%) 66167.25 ( 6.66%) 62900.25 ( 1.39%) 61826.75 ( -0.34%) 62239.00 ( 0.33%)
Mean 3 90075.50 ( 0.00%) 86045.25 ( -4.47%) 96151.25 ( 6.75%) 91035.75 ( 1.07%) 89128.25 ( -1.05%) 90692.25 ( 0.68%)
Mean 4 116062.50 ( 0.00%) 91439.25 (-21.22%) 125072.75 ( 7.76%) 116103.75 ( 0.04%) 115819.25 ( -0.21%) 117047.75 ( 0.85%)
Mean 5 136056.00 ( 0.00%) 97558.25 (-28.30%) 150854.50 ( 10.88%) 138629.75 ( 1.89%) 138712.25 ( 1.95%) 139477.00 ( 2.51%)
Mean 6 153827.50 ( 0.00%) 128628.25 (-16.38%) 175849.50 ( 14.32%) 157472.75 ( 2.37%) 158780.00 ( 3.22%) 158780.25 ( 3.22%)
Mean 7 151946.00 ( 0.00%) 136447.25 (-10.20%) 181675.50 ( 19.57%) 160388.25 ( 5.56%) 160378.75 ( 5.55%) 162787.50 ( 7.14%)
Mean 8 155941.50 ( 0.00%) 136351.25 (-12.56%) 185131.75 ( 18.72%) 158613.00 ( 1.71%) 159683.25 ( 2.40%) 164054.25 ( 5.20%)
Mean 9 146191.50 ( 0.00%) 125132.00 (-14.41%) 184833.50 ( 26.43%) 155988.50 ( 6.70%) 157664.75 ( 7.85%) 161319.00 ( 10.35%)
Mean 10 139189.50 ( 0.00%) 98594.50 (-29.17%) 179948.50 ( 29.28%) 150341.75 ( 8.01%) 152771.00 ( 9.76%) 155530.25 ( 11.74%)
Mean 11 133561.75 ( 0.00%) 105967.75 (-20.66%) 175904.50 ( 31.70%) 144335.75 ( 8.07%) 146147.00 ( 9.42%) 146832.50 ( 9.94%)
Mean 12 123752.25 ( 0.00%) 138392.25 ( 11.83%) 169482.50 ( 36.95%) 140328.50 ( 13.39%) 138498.50 ( 11.92%) 142362.25 ( 15.04%)
Mean 13 123578.50 ( 0.00%) 103236.50 (-16.46%) 166714.75 ( 34.91%) 136745.25 ( 10.65%) 138469.50 ( 12.05%) 140699.00 ( 13.85%)
Mean 14 123812.00 ( 0.00%) 113250.00 ( -8.53%) 164406.00 ( 32.79%) 138061.25 ( 11.51%) 134047.25 ( 8.27%) 139790.50 ( 12.91%)
Mean 15 123499.25 ( 0.00%) 130577.50 ( 5.73%) 162517.00 ( 31.59%) 133598.50 ( 8.18%) 132651.50 ( 7.41%) 134423.00 ( 8.85%)
Mean 16 118595.75 ( 0.00%) 127494.50 ( 7.50%) 160836.25 ( 35.62%) 129305.25 ( 9.03%) 131355.75 ( 10.76%) 132424.25 ( 11.66%)
Mean 17 115374.75 ( 0.00%) 121443.50 ( 5.26%) 157091.00 ( 36.16%) 127538.50 ( 10.54%) 128536.00 ( 11.41%) 128923.75 ( 11.74%)
Mean 18 120981.00 ( 0.00%) 119649.00 ( -1.10%) 155978.75 ( 28.93%) 126031.00 ( 4.17%) 127277.00 ( 5.20%) 131032.25 ( 8.31%)
Stddev 1 1256.20 ( 0.00%) 1649.69 (-31.32%) 1042.80 ( 16.99%) 1004.74 ( 20.02%) 1125.79 ( 10.38%) 965.75 ( 23.12%)
Stddev 2 894.02 ( 0.00%) 1299.83 (-45.39%) 153.62 ( 82.82%) 1757.03 (-96.53%) 1089.32 (-21.84%) 370.16 ( 58.60%)
Stddev 3 1354.13 ( 0.00%) 3221.35 (-137.89%) 452.26 ( 66.60%) 1169.99 ( 13.60%) 1387.57 ( -2.47%) 629.10 ( 53.54%)
Stddev 4 1505.56 ( 0.00%) 9559.15 (-534.92%) 597.48 ( 60.32%) 1046.60 ( 30.48%) 1285.40 ( 14.62%) 1320.74 ( 12.28%)
Stddev 5 513.85 ( 0.00%) 20854.29 (-3958.43%) 416.34 ( 18.98%) 760.85 (-48.07%) 1118.27 (-117.62%) 1382.28 (-169.00%)
Stddev 6 1393.16 ( 0.00%) 11554.27 (-729.36%) 1225.46 ( 12.04%) 1190.92 ( 14.52%) 1662.55 (-19.34%) 1814.39 (-30.24%)
Stddev 7 1645.51 ( 0.00%) 7300.33 (-343.65%) 1690.25 ( -2.72%) 2517.46 (-52.99%) 1882.02 (-14.37%) 2393.67 (-45.47%)
Stddev 8 4853.40 ( 0.00%) 10303.35 (-112.29%) 1724.63 ( 64.47%) 4280.27 ( 11.81%) 6680.41 (-37.64%) 1453.35 ( 70.05%)
Stddev 9 4366.96 ( 0.00%) 9683.51 (-121.74%) 3443.47 ( 21.15%) 7360.20 (-68.54%) 4560.06 ( -4.42%) 3269.18 ( 25.14%)
Stddev 10 4840.11 ( 0.00%) 7402.77 (-52.95%) 5808.63 (-20.01%) 4639.55 ( 4.14%) 1221.58 ( 74.76%) 3911.11 ( 19.19%)
Stddev 11 5208.04 ( 0.00%) 12657.33 (-143.03%) 10003.74 (-92.08%) 8961.02 (-72.06%) 3754.61 ( 27.91%) 4138.30 ( 20.54%)
Stddev 12 5015.66 ( 0.00%) 14749.87 (-194.08%) 14862.62 (-196.32%) 4554.52 ( 9.19%) 7436.76 (-48.27%) 3902.07 ( 22.20%)
Stddev 13 3348.23 ( 0.00%) 13349.42 (-298.70%) 15333.50 (-357.96%) 5121.75 (-52.97%) 6893.45 (-105.88%) 3633.54 ( -8.52%)
Stddev 14 2816.30 ( 0.00%) 3878.71 (-37.72%) 15707.34 (-457.73%) 1296.47 ( 53.97%) 4760.04 (-69.02%) 1540.51 ( 45.30%)
Stddev 15 2592.17 ( 0.00%) 777.61 ( 70.00%) 17317.35 (-568.06%) 3572.43 (-37.82%) 5510.05 (-112.57%) 2227.21 ( 14.08%)
Stddev 16 4163.07 ( 0.00%) 1239.57 ( 70.22%) 16770.00 (-302.83%) 3858.12 ( 7.33%) 2947.70 ( 29.19%) 3332.69 ( 19.95%)
Stddev 17 5959.34 ( 0.00%) 1602.88 ( 73.10%) 16890.90 (-183.44%) 4770.68 ( 19.95%) 4398.91 ( 26.18%) 3340.67 ( 43.94%)
Stddev 18 3040.65 ( 0.00%) 857.66 ( 71.79%) 19296.90 (-534.63%) 6344.77 (-108.67%) 4183.68 (-37.59%) 1278.14 ( 57.96%)
TPut 1 123879.00 ( 0.00%) 113275.00 ( -8.56%) 126168.00 ( 1.85%) 121711.00 ( -1.75%) 124769.00 ( 0.72%) 124867.00 ( 0.80%)
TPut 2 248146.00 ( 0.00%) 229294.00 ( -7.60%) 264669.00 ( 6.66%) 251601.00 ( 1.39%) 247307.00 ( -0.34%) 248956.00 ( 0.33%)
TPut 3 360302.00 ( 0.00%) 344181.00 ( -4.47%) 384605.00 ( 6.75%) 364143.00 ( 1.07%) 356513.00 ( -1.05%) 362769.00 ( 0.68%)
TPut 4 464250.00 ( 0.00%) 365757.00 (-21.22%) 500291.00 ( 7.76%) 464415.00 ( 0.04%) 463277.00 ( -0.21%) 468191.00 ( 0.85%)
TPut 5 544224.00 ( 0.00%) 390233.00 (-28.30%) 603418.00 ( 10.88%) 554519.00 ( 1.89%) 554849.00 ( 1.95%) 557908.00 ( 2.51%)
TPut 6 615310.00 ( 0.00%) 514513.00 (-16.38%) 703398.00 ( 14.32%) 629891.00 ( 2.37%) 635120.00 ( 3.22%) 635121.00 ( 3.22%)
TPut 7 607784.00 ( 0.00%) 545789.00 (-10.20%) 726702.00 ( 19.57%) 641553.00 ( 5.56%) 641515.00 ( 5.55%) 651150.00 ( 7.14%)
TPut 8 623766.00 ( 0.00%) 545405.00 (-12.56%) 740527.00 ( 18.72%) 634452.00 ( 1.71%) 638733.00 ( 2.40%) 656217.00 ( 5.20%)
TPut 9 584766.00 ( 0.00%) 500528.00 (-14.41%) 739334.00 ( 26.43%) 623954.00 ( 6.70%) 630659.00 ( 7.85%) 645276.00 ( 10.35%)
TPut 10 556758.00 ( 0.00%) 394378.00 (-29.17%) 719794.00 ( 29.28%) 601367.00 ( 8.01%) 611084.00 ( 9.76%) 622121.00 ( 11.74%)
TPut 11 534247.00 ( 0.00%) 423871.00 (-20.66%) 703618.00 ( 31.70%) 577343.00 ( 8.07%) 584588.00 ( 9.42%) 587330.00 ( 9.94%)
TPut 12 495009.00 ( 0.00%) 553569.00 ( 11.83%) 677930.00 ( 36.95%) 561314.00 ( 13.39%) 553994.00 ( 11.92%) 569449.00 ( 15.04%)
TPut 13 494314.00 ( 0.00%) 412946.00 (-16.46%) 666859.00 ( 34.91%) 546981.00 ( 10.65%) 553878.00 ( 12.05%) 562796.00 ( 13.85%)
TPut 14 495248.00 ( 0.00%) 453000.00 ( -8.53%) 657624.00 ( 32.79%) 552245.00 ( 11.51%) 536189.00 ( 8.27%) 559162.00 ( 12.91%)
TPut 15 493997.00 ( 0.00%) 522310.00 ( 5.73%) 650068.00 ( 31.59%) 534394.00 ( 8.18%) 530606.00 ( 7.41%) 537692.00 ( 8.85%)
TPut 16 474383.00 ( 0.00%) 509978.00 ( 7.50%) 643345.00 ( 35.62%) 517221.00 ( 9.03%) 525423.00 ( 10.76%) 529697.00 ( 11.66%)
TPut 17 461499.00 ( 0.00%) 485774.00 ( 5.26%) 628364.00 ( 36.16%) 510154.00 ( 10.54%) 514144.00 ( 11.41%) 515695.00 ( 11.74%)
TPut 18 483924.00 ( 0.00%) 478596.00 ( -1.10%) 623915.00 ( 28.93%) 504124.00 ( 4.17%) 509108.00 ( 5.20%) 524129.00 ( 8.31%)

numacore is not handling the multi JVM case well with numerous regressions
for lower number of threads. It starts improving as it gets closer to the
expected peak of 12 warehouses for this configuration. There are also large
variances between the different JVMs throughput but note again that this
improves as the number of warehouses increase.

autonuma generally does very well in terms of throughput but the variance
between JVMs is massive.

balancenuma does reasonably well and improves upon the baseline kernel. It's
no longer regressing for small numbers of warehouses and is basically the
same as mainline. As the number of warehouses increases, it shows some
performance improvement and the variances are not too bad.

SPECJBB PEAKS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123 rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Expctd Warehouse 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%)
Expctd Peak Bops 495009.00 ( 0.00%) 553569.00 ( 11.83%) 677930.00 ( 36.95%) 561314.00 ( 13.39%) 553994.00 ( 11.92%) 569449.00 ( 15.04%)
Actual Warehouse 8.00 ( 0.00%) 12.00 ( 50.00%) 8.00 ( 0.00%) 7.00 (-12.50%) 7.00 (-12.50%) 8.00 ( 0.00%)
Actual Peak Bops 623766.00 ( 0.00%) 553569.00 (-11.25%) 740527.00 ( 18.72%) 641553.00 ( 2.85%) 641515.00 ( 2.85%) 656217.00 ( 5.20%)
SpecJBB Bops 261413.00 ( 0.00%) 262783.00 ( 0.52%) 349854.00 ( 33.83%) 286648.00 ( 9.65%) 286412.00 ( 9.56%) 292202.00 ( 11.78%)
SpecJBB Bops/JVM 65353.00 ( 0.00%) 65696.00 ( 0.52%) 87464.00 ( 33.83%) 71662.00 ( 9.65%) 71603.00 ( 9.56%) 73051.00 ( 11.78%)

Note the peak numbers for numacore. The peak performance regresses 11.25%
from the baseline kernel. However as it improves with the number of
warehouses, specjbb reports that it sees a 0.52% because it's using a
range of peak values.

autonuma sees an 18.72% performance gain at its peak and a 33.83% gain in
its specjbb score.

balancenuma does reasonably well with a 5.2% gain at its peak and 11.78% on its
overall specjbb score.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 204146.61 197898.85 203957.74 203331.16 203747.52 203740.33
System 314.90 6106.94 444.09 1278.71 703.78 688.21
Elapsed 5029.18 5041.34 5009.46 5022.41 5024.73 5021.80

Note the system CPU usage. numacore is using 9 times more system CPU
than balancenuma is and 4 times more than autonuma (usual disclaimer
about threads).

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 164712 164556 160492 164020 160552 164364
Page Outs 509132 236136 430444 511088 471208 252540
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 105761 91276 94593 111724 106169 99366
THP collapse alloc 114 111 1059 119 114 115
THP splits 605 379 575 517 570 592
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 1031293 476756 398109
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 1070 494 413
NUMA PTE updates 0 0 0 1089136813 514718304 515300823
NUMA hint faults 0 0 0 9147497 4661092 4580385
NUMA hint local faults 0 0 0 3005415 1332898 1599021
NUMA pages migrated 0 0 0 1031293 476756 398109
AutoNUMA cost 0 0 0 53381 26917 26516

The main takeaways here is that there were THP allocations and all the
trees split THPs at roughly the same rate overall. Migration stats are
not available for numacore or autonuma and the migration stats available
for balancenuma here are not reliable because it's not accounting for THP
properly. This is fixed, but not in the V5 tree released.


SPECJBB: Multi JVMs (one per node, 4 nodes), THP is disabled
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Mean 1 25269.25 ( 0.00%) 21623.50 (-14.43%) 25937.75 ( 2.65%) 25138.00 ( -0.52%) 25539.25 ( 1.07%) 25193.00 ( -0.30%)
Mean 2 53467.00 ( 0.00%) 38412.00 (-28.16%) 56598.75 ( 5.86%) 50813.00 ( -4.96%) 52803.50 ( -1.24%) 52637.50 ( -1.55%)
Mean 3 77112.50 ( 0.00%) 57653.25 (-25.23%) 83762.25 ( 8.62%) 75274.25 ( -2.38%) 76097.00 ( -1.32%) 76324.25 ( -1.02%)
Mean 4 99928.75 ( 0.00%) 68468.50 (-31.48%) 108700.75 ( 8.78%) 97444.75 ( -2.49%) 99426.75 ( -0.50%) 99767.25 ( -0.16%)
Mean 5 119616.75 ( 0.00%) 77222.25 (-35.44%) 132572.75 ( 10.83%) 117350.00 ( -1.90%) 118417.25 ( -1.00%) 118298.50 ( -1.10%)
Mean 6 133944.75 ( 0.00%) 89222.75 (-33.39%) 154110.25 ( 15.06%) 133565.75 ( -0.28%) 135268.75 ( 0.99%) 137512.50 ( 2.66%)
Mean 7 137063.00 ( 0.00%) 94944.25 (-30.73%) 159535.25 ( 16.40%) 136744.75 ( -0.23%) 139218.25 ( 1.57%) 138919.25 ( 1.35%)
Mean 8 130814.25 ( 0.00%) 98367.25 (-24.80%) 162045.75 ( 23.87%) 137088.25 ( 4.80%) 139649.50 ( 6.75%) 138273.00 ( 5.70%)
Mean 9 124815.00 ( 0.00%) 99183.50 (-20.54%) 162337.75 ( 30.06%) 135275.50 ( 8.38%) 137494.50 ( 10.16%) 137386.25 ( 10.07%)
Mean 10 123741.00 ( 0.00%) 91926.25 (-25.71%) 158733.00 ( 28.28%) 131418.00 ( 6.20%) 132662.00 ( 7.21%) 132379.25 ( 6.98%)
Mean 11 116966.25 ( 0.00%) 95283.00 (-18.54%) 155065.50 ( 32.57%) 125246.00 ( 7.08%) 124420.25 ( 6.37%) 128132.00 ( 9.55%)
Mean 12 106682.00 ( 0.00%) 92286.25 (-13.49%) 149946.25 ( 40.55%) 118489.50 ( 11.07%) 119624.25 ( 12.13%) 121050.75 ( 13.47%)
Mean 13 106395.00 ( 0.00%) 103168.75 ( -3.03%) 146355.50 ( 37.56%) 118143.75 ( 11.04%) 116799.25 ( 9.78%) 121032.25 ( 13.76%)
Mean 14 104384.25 ( 0.00%) 105417.75 ( 0.99%) 145206.50 ( 39.11%) 119562.75 ( 14.54%) 117898.75 ( 12.95%) 114255.25 ( 9.46%)
Mean 15 103699.00 ( 0.00%) 103878.75 ( 0.17%) 142139.75 ( 37.07%) 115845.50 ( 11.71%) 117527.25 ( 13.33%) 109329.50 ( 5.43%)
Mean 16 100955.00 ( 0.00%) 103582.50 ( 2.60%) 139864.00 ( 38.54%) 113216.75 ( 12.15%) 114046.50 ( 12.97%) 108669.75 ( 7.64%)
Mean 17 99528.25 ( 0.00%) 101783.25 ( 2.27%) 138544.50 ( 39.20%) 112736.50 ( 13.27%) 115917.00 ( 16.47%) 113464.50 ( 14.00%)
Mean 18 97694.00 ( 0.00%) 99978.75 ( 2.34%) 138034.00 ( 41.29%) 108930.00 ( 11.50%) 114137.50 ( 16.83%) 114161.25 ( 16.86%)
Stddev 1 898.91 ( 0.00%) 754.70 ( 16.04%) 815.97 ( 9.23%) 786.81 ( 12.47%) 756.10 ( 15.89%) 1061.69 (-18.11%)
Stddev 2 676.51 ( 0.00%) 2726.62 (-303.04%) 946.10 (-39.85%) 1591.35 (-135.23%) 968.21 (-43.12%) 919.08 (-35.86%)
Stddev 3 629.58 ( 0.00%) 1975.98 (-213.86%) 1403.79 (-122.97%) 291.72 ( 53.66%) 1181.68 (-87.69%) 701.90 (-11.49%)
Stddev 4 363.04 ( 0.00%) 2867.55 (-689.87%) 1810.59 (-398.73%) 1288.56 (-254.94%) 1757.87 (-384.21%) 2050.94 (-464.94%)
Stddev 5 437.02 ( 0.00%) 1159.08 (-165.22%) 2352.89 (-438.39%) 1148.94 (-162.90%) 1294.70 (-196.26%) 861.14 (-97.05%)
Stddev 6 1484.12 ( 0.00%) 1777.97 (-19.80%) 1045.24 ( 29.57%) 860.24 ( 42.04%) 1703.57 (-14.79%) 1367.56 ( 7.85%)
Stddev 7 3856.79 ( 0.00%) 857.26 ( 77.77%) 1369.61 ( 64.49%) 1517.99 ( 60.64%) 2676.34 ( 30.61%) 1818.15 ( 52.86%)
Stddev 8 4910.41 ( 0.00%) 2751.82 ( 43.96%) 1765.69 ( 64.04%) 5022.25 ( -2.28%) 3113.14 ( 36.60%) 3958.06 ( 19.39%)
Stddev 9 2107.95 ( 0.00%) 2348.33 (-11.40%) 1764.06 ( 16.31%) 2932.34 (-39.11%) 6568.79 (-211.62%) 7450.20 (-253.43%)
Stddev 10 2012.98 ( 0.00%) 1332.65 ( 33.80%) 3297.73 (-63.82%) 4649.56 (-130.98%) 2703.19 (-34.29%) 4193.34 (-108.31%)
Stddev 11 5263.81 ( 0.00%) 3810.66 ( 27.61%) 5676.52 ( -7.84%) 1647.81 ( 68.70%) 4683.05 ( 11.03%) 3702.45 ( 29.66%)
Stddev 12 4316.09 ( 0.00%) 731.69 ( 83.05%) 9685.19 (-124.40%) 2202.13 ( 48.98%) 2520.73 ( 41.60%) 3572.75 ( 17.22%)
Stddev 13 4116.97 ( 0.00%) 4217.04 ( -2.43%) 9249.57 (-124.67%) 3042.07 ( 26.11%) 1705.18 ( 58.58%) 464.36 ( 88.72%)
Stddev 14 4711.12 ( 0.00%) 925.12 ( 80.36%) 10672.49 (-126.54%) 1597.01 ( 66.10%) 1983.88 ( 57.89%) 1513.32 ( 67.88%)
Stddev 15 4582.30 ( 0.00%) 909.35 ( 80.16%) 11033.47 (-140.78%) 1966.56 ( 57.08%) 420.63 ( 90.82%) 1049.66 ( 77.09%)
Stddev 16 3805.96 ( 0.00%) 743.92 ( 80.45%) 10353.28 (-172.03%) 1493.18 ( 60.77%) 2524.84 ( 33.66%) 2030.46 ( 46.65%)
Stddev 17 4560.83 ( 0.00%) 1130.10 ( 75.22%) 9902.66 (-117.12%) 1709.65 ( 62.51%) 2449.37 ( 46.30%) 1259.00 ( 72.40%)
Stddev 18 4503.57 ( 0.00%) 1418.91 ( 68.49%) 12143.74 (-169.65%) 1334.37 ( 70.37%) 1693.93 ( 62.39%) 975.71 ( 78.33%)
TPut 1 101077.00 ( 0.00%) 86494.00 (-14.43%) 103751.00 ( 2.65%) 100552.00 ( -0.52%) 102157.00 ( 1.07%) 100772.00 ( -0.30%)
TPut 2 213868.00 ( 0.00%) 153648.00 (-28.16%) 226395.00 ( 5.86%) 203252.00 ( -4.96%) 211214.00 ( -1.24%) 210550.00 ( -1.55%)
TPut 3 308450.00 ( 0.00%) 230613.00 (-25.23%) 335049.00 ( 8.62%) 301097.00 ( -2.38%) 304388.00 ( -1.32%) 305297.00 ( -1.02%)
TPut 4 399715.00 ( 0.00%) 273874.00 (-31.48%) 434803.00 ( 8.78%) 389779.00 ( -2.49%) 397707.00 ( -0.50%) 399069.00 ( -0.16%)
TPut 5 478467.00 ( 0.00%) 308889.00 (-35.44%) 530291.00 ( 10.83%) 469400.00 ( -1.90%) 473669.00 ( -1.00%) 473194.00 ( -1.10%)
TPut 6 535779.00 ( 0.00%) 356891.00 (-33.39%) 616441.00 ( 15.06%) 534263.00 ( -0.28%) 541075.00 ( 0.99%) 550050.00 ( 2.66%)
TPut 7 548252.00 ( 0.00%) 379777.00 (-30.73%) 638141.00 ( 16.40%) 546979.00 ( -0.23%) 556873.00 ( 1.57%) 555677.00 ( 1.35%)
TPut 8 523257.00 ( 0.00%) 393469.00 (-24.80%) 648183.00 ( 23.87%) 548353.00 ( 4.80%) 558598.00 ( 6.75%) 553092.00 ( 5.70%)
TPut 9 499260.00 ( 0.00%) 396734.00 (-20.54%) 649351.00 ( 30.06%) 541102.00 ( 8.38%) 549978.00 ( 10.16%) 549545.00 ( 10.07%)
TPut 10 494964.00 ( 0.00%) 367705.00 (-25.71%) 634932.00 ( 28.28%) 525672.00 ( 6.20%) 530648.00 ( 7.21%) 529517.00 ( 6.98%)
TPut 11 467865.00 ( 0.00%) 381132.00 (-18.54%) 620262.00 ( 32.57%) 500984.00 ( 7.08%) 497681.00 ( 6.37%) 512528.00 ( 9.55%)
TPut 12 426728.00 ( 0.00%) 369145.00 (-13.49%) 599785.00 ( 40.55%) 473958.00 ( 11.07%) 478497.00 ( 12.13%) 484203.00 ( 13.47%)
TPut 13 425580.00 ( 0.00%) 412675.00 ( -3.03%) 585422.00 ( 37.56%) 472575.00 ( 11.04%) 467197.00 ( 9.78%) 484129.00 ( 13.76%)
TPut 14 417537.00 ( 0.00%) 421671.00 ( 0.99%) 580826.00 ( 39.11%) 478251.00 ( 14.54%) 471595.00 ( 12.95%) 457021.00 ( 9.46%)
TPut 15 414796.00 ( 0.00%) 415515.00 ( 0.17%) 568559.00 ( 37.07%) 463382.00 ( 11.71%) 470109.00 ( 13.33%) 437318.00 ( 5.43%)
TPut 16 403820.00 ( 0.00%) 414330.00 ( 2.60%) 559456.00 ( 38.54%) 452867.00 ( 12.15%) 456186.00 ( 12.97%) 434679.00 ( 7.64%)
TPut 17 398113.00 ( 0.00%) 407133.00 ( 2.27%) 554178.00 ( 39.20%) 450946.00 ( 13.27%) 463668.00 ( 16.47%) 453858.00 ( 14.00%)
TPut 18 390776.00 ( 0.00%) 399915.00 ( 2.34%) 552136.00 ( 41.29%) 435720.00 ( 11.50%) 456550.00 ( 16.83%) 456645.00 ( 16.86%)

numacore regresses badly without THP on multi JVM configurations. Note
that once again it improves as the number of warehouses increase. SpecJBB
reports based on peaks so this will be missed if only the peak figures
are quoted in other benchmark reports.

autonuma again does pretty well although it's variances between JVMs is nuts.

Without THP, balancenuma shows small regressions for small numbers of
warehouses but recovers to show decent performance gains. Note that the gains
vary a lot between warehouses because it's completely at the mercy of the
default scheduler decisions which are getting no hints about NUMA placement.

SPECJBB PEAKS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123 rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Expctd Warehouse 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%)
Expctd Peak Bops 426728.00 ( 0.00%) 369145.00 (-13.49%) 599785.00 ( 40.55%) 473958.00 ( 11.07%) 478497.00 ( 12.13%) 484203.00 ( 13.47%)
Actual Warehouse 7.00 ( 0.00%) 14.00 (100.00%) 9.00 ( 28.57%) 8.00 ( 14.29%) 8.00 ( 14.29%) 7.00 ( 0.00%)
Actual Peak Bops 548252.00 ( 0.00%) 421671.00 (-23.09%) 649351.00 ( 18.44%) 548353.00 ( 0.02%) 558598.00 ( 1.89%) 555677.00 ( 1.35%)
SpecJBB Bops 221334.00 ( 0.00%) 218491.00 ( -1.28%) 307720.00 ( 39.03%) 248285.00 ( 12.18%) 251062.00 ( 13.43%) 246759.00 ( 11.49%)
SpecJBB Bops/JVM 55334.00 ( 0.00%) 54623.00 ( -1.28%) 76930.00 ( 39.03%) 62071.00 ( 12.18%) 62766.00 ( 13.43%) 61690.00 ( 11.49%)

numacore regresses from the peak by 23.09% and the specjbb overall score is down 1.28%.

autonuma does well with a 18.44% gain on the peak and 39.03% overall.

balancenuma does reasonably well - 1.35% gain at the peak and 11.49%
gain overall.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 203906.38 167709.64 203858.75 200055.62 202076.09 201985.74
System 577.16 31263.34 692.24 4114.76 2129.71 2177.70
Elapsed 5030.84 5067.85 5009.06 5019.25 5026.83 5017.79

numacores system CPU usage is nuts.

autonumas is ok (kernel threads blah blah)

balancenumas is higher than I'd like. I want to describe is as "not crazy"
but it probably is to everybody else.

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 157624 164396 165024 163492 164776 163348
Page Outs 322264 391416 271880 491668 401644 523684
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 2 2 3 2 1 3
THP collapse alloc 0 0 9 0 0 5
THP splits 0 0 0 0 0 0
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 100618401 47601498 49370903
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 104441 49410 51246
NUMA PTE updates 0 0 0 783430956 381926529 389134805
NUMA hint faults 0 0 0 730273702 352415076 360742428
NUMA hint local faults 0 0 0 191790656 92208827 93522412
NUMA pages migrated 0 0 0 100618401 47601498 49370903
AutoNUMA cost 0 0 0 3658764 1765653 1807374

First take-away is the lack of THP activity.

Here the stats balancenuma reports are useful because we're only dealing
with base pages. balancenuma migrates 38MB/second which is really high. Note
what the scan rate adaption did to that figure. Without scan rate adaption
it's at 78MB/second on average which is nuts. Average migration rate is
something we should keep an eye on.

From here, we're onto the single JVM configuration. I suspect
this is tested much more commonly but note that it behaves very
differently to the multi JVM configuration as explained by Andrea
(http://choon.net/forum/read.php?21,1599976,page=4).

A concern with the single JVM results as reported here is the maximum
number of warehouses. In the Multi JVM configuration, the expected peak
was 12 warehouses so I ran up to 18 so that the tests could complete in a
reasonable amount of time. The expected peak for a single JVM is 48 (the
number of CPUs) but the configuration file was derived from the multi JVM
configuration so it was restricted to running up to 18 warehouses. Again,
the reason was so it would complete in a reasonable amount of time but
specjbb does not give a score for this type of configuration and I am
only reporting on the 1-18 warehouses it ran for. I've reconfigured the
4 specjbb configs to run a full config and it'll run over the weekend.

SPECJBB: Single JVMs (one per node, 4 nodes), THP is enabled

SPECJBB BOPS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
TPut 1 26802.00 ( 0.00%) 22808.00 (-14.90%) 24482.00 ( -8.66%) 25723.00 ( -4.03%) 24387.00 ( -9.01%) 25940.00 ( -3.22%)
TPut 2 57720.00 ( 0.00%) 51245.00 (-11.22%) 55018.00 ( -4.68%) 55498.00 ( -3.85%) 55259.00 ( -4.26%) 55581.00 ( -3.71%)
TPut 3 86940.00 ( 0.00%) 79172.00 ( -8.93%) 87705.00 ( 0.88%) 86101.00 ( -0.97%) 86894.00 ( -0.05%) 86875.00 ( -0.07%)
TPut 4 117203.00 ( 0.00%) 107315.00 ( -8.44%) 117382.00 ( 0.15%) 116282.00 ( -0.79%) 116322.00 ( -0.75%) 115263.00 ( -1.66%)
TPut 5 145375.00 ( 0.00%) 121178.00 (-16.64%) 145802.00 ( 0.29%) 142378.00 ( -2.06%) 144947.00 ( -0.29%) 144211.00 ( -0.80%)
TPut 6 169232.00 ( 0.00%) 157796.00 ( -6.76%) 173409.00 ( 2.47%) 171066.00 ( 1.08%) 173341.00 ( 2.43%) 169861.00 ( 0.37%)
TPut 7 195468.00 ( 0.00%) 169834.00 (-13.11%) 197201.00 ( 0.89%) 197536.00 ( 1.06%) 198347.00 ( 1.47%) 198047.00 ( 1.32%)
TPut 8 217863.00 ( 0.00%) 169975.00 (-21.98%) 222559.00 ( 2.16%) 224901.00 ( 3.23%) 226268.00 ( 3.86%) 218354.00 ( 0.23%)
TPut 9 240679.00 ( 0.00%) 197498.00 (-17.94%) 245997.00 ( 2.21%) 250022.00 ( 3.88%) 253838.00 ( 5.47%) 250264.00 ( 3.98%)
TPut 10 261454.00 ( 0.00%) 204909.00 (-21.63%) 269551.00 ( 3.10%) 275125.00 ( 5.23%) 274658.00 ( 5.05%) 274155.00 ( 4.86%)
TPut 11 281079.00 ( 0.00%) 230118.00 (-18.13%) 281588.00 ( 0.18%) 304383.00 ( 8.29%) 297198.00 ( 5.73%) 299131.00 ( 6.42%)
TPut 12 302007.00 ( 0.00%) 275511.00 ( -8.77%) 313281.00 ( 3.73%) 327826.00 ( 8.55%) 325324.00 ( 7.72%) 325372.00 ( 7.74%)
TPut 13 319139.00 ( 0.00%) 293501.00 ( -8.03%) 332581.00 ( 4.21%) 352389.00 ( 10.42%) 340169.00 ( 6.59%) 351215.00 ( 10.05%)
TPut 14 321069.00 ( 0.00%) 312088.00 ( -2.80%) 337911.00 ( 5.25%) 376198.00 ( 17.17%) 370669.00 ( 15.45%) 366491.00 ( 14.15%)
TPut 15 345851.00 ( 0.00%) 283856.00 (-17.93%) 369104.00 ( 6.72%) 389772.00 ( 12.70%) 392963.00 ( 13.62%) 389254.00 ( 12.55%)
TPut 16 346868.00 ( 0.00%) 317127.00 ( -8.57%) 380930.00 ( 9.82%) 420331.00 ( 21.18%) 412974.00 ( 19.06%) 408575.00 ( 17.79%)
TPut 17 357755.00 ( 0.00%) 349624.00 ( -2.27%) 387635.00 ( 8.35%) 441223.00 ( 23.33%) 426558.00 ( 19.23%) 435985.00 ( 21.87%)
TPut 18 357467.00 ( 0.00%) 360056.00 ( 0.72%) 399487.00 ( 11.75%) 464603.00 ( 29.97%) 442907.00 ( 23.90%) 453011.00 ( 26.73%)

numacore is not doing well here for low numbers of warehouses. However,
note that by 18 warehouses it had drawn level and the expected peak is 48
warehouses. The specjbb reported figure would be using the higher numbers
of warehouses. I'll a full range over the weekend and report back. If
time permits, I'll also run a "monitors disabled" run case the read of
numa_maps every 10 seconds is crippling it.

autonuma did reasonably well and was showing larger gains towards teh 18
warehouses mark.

balancenuma regressed a little initially but was doing quite well by 18
warehouses.

SPECJBB PEAKS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123 rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Expctd Warehouse 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%)
Expctd Peak Bops 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)
Actual Warehouse 17.00 ( 0.00%) 18.00 ( 5.88%) 18.00 ( 5.88%) 18.00 ( 5.88%) 18.00 ( 5.88%) 18.00 ( 5.88%)
Actual Peak Bops 357755.00 ( 0.00%) 360056.00 ( 0.64%) 399487.00 ( 11.66%) 464603.00 ( 29.87%) 442907.00 ( 23.80%) 453011.00 ( 26.63%)
SpecJBB Bops 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)
SpecJBB Bops/JVM 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)

Note that numacores peak was 0.64% higher than the baseline and for a
higher number of warehouses so it was scaling better.

autonuma was 11.66% higher at the peak which was also at 18 warehouses.

balancenuma was at 26.63% and was still scaling at 18 warehouses.

The fact that the peak and maximum number of warehouses is the same
reinforces that this test needs to be rerun all the way up to 48 warehouses.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 10450.16 10006.88 10441.26 10421.00 10441.47 10447.30
System 115.84 549.28 107.70 167.83 129.14 142.34
Elapsed 1196.56 1228.13 1187.23 1196.37 1198.64 1198.75

numacores system CPU usage is very high.

autonumas is lower than baseline -- usual thread disclaimers.

balancenuma system CPU usage is also a bit high but it's not crazy.


MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 164228 164452 164436 163868 164440 164052
Page Outs 173972 132016 247080 257988 123724 255716
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 55438 46676 52240 48118 57618 53194
THP collapse alloc 56 8 323 54 28 19
THP splits 96 30 106 80 91 86
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 253855 111066 58659
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 263 115 60
NUMA PTE updates 0 0 0 142021619 62920560 64394112
NUMA hint faults 0 0 0 2314850 1258884 1019745
NUMA hint local faults 0 0 0 1249300 756763 569808
NUMA pages migrated 0 0 0 253855 111066 58659
AutoNUMA cost 0 0 0 12573 6736 5550

THP was in use - collapses and splits in evidence.

For balancenuma, note how adaptscan affected the PTE scan rates. The
impact on the system CPU usage is obvious too -- fewer PTE scans means
fewer faults, fewer migrations etc. Obviously there needs to be enough
of these faults to actually do the NUMA balancing but there comes a point
where there are diminishing returns.

SPECJBB: Single JVMs (one per node, 4 nodes), THP is disabled

3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
TPut 1 20890.00 ( 0.00%) 18720.00 (-10.39%) 21127.00 ( 1.13%) 20376.00 ( -2.46%) 20806.00 ( -0.40%) 20698.00 ( -0.92%)
TPut 2 48259.00 ( 0.00%) 38121.00 (-21.01%) 47920.00 ( -0.70%) 47085.00 ( -2.43%) 48594.00 ( 0.69%) 48094.00 ( -0.34%)
TPut 3 73203.00 ( 0.00%) 60057.00 (-17.96%) 73630.00 ( 0.58%) 70241.00 ( -4.05%) 73418.00 ( 0.29%) 74016.00 ( 1.11%)
TPut 4 98694.00 ( 0.00%) 73669.00 (-25.36%) 98929.00 ( 0.24%) 96721.00 ( -2.00%) 96797.00 ( -1.92%) 97930.00 ( -0.77%)
TPut 5 122563.00 ( 0.00%) 98786.00 (-19.40%) 118969.00 ( -2.93%) 118045.00 ( -3.69%) 121553.00 ( -0.82%) 122781.00 ( 0.18%)
TPut 6 144095.00 ( 0.00%) 114485.00 (-20.55%) 145328.00 ( 0.86%) 141713.00 ( -1.65%) 142589.00 ( -1.05%) 143771.00 ( -0.22%)
TPut 7 166457.00 ( 0.00%) 112416.00 (-32.47%) 163503.00 ( -1.77%) 166971.00 ( 0.31%) 166788.00 ( 0.20%) 165188.00 ( -0.76%)
TPut 8 191067.00 ( 0.00%) 122996.00 (-35.63%) 189477.00 ( -0.83%) 183090.00 ( -4.17%) 187710.00 ( -1.76%) 192157.00 ( 0.57%)
TPut 9 210634.00 ( 0.00%) 141200.00 (-32.96%) 209639.00 ( -0.47%) 207968.00 ( -1.27%) 215216.00 ( 2.18%) 214222.00 ( 1.70%)
TPut 10 234121.00 ( 0.00%) 129508.00 (-44.68%) 231221.00 ( -1.24%) 221553.00 ( -5.37%) 219998.00 ( -6.03%) 227193.00 ( -2.96%)
TPut 11 257885.00 ( 0.00%) 131232.00 (-49.11%) 256568.00 ( -0.51%) 252734.00 ( -2.00%) 258433.00 ( 0.21%) 260534.00 ( 1.03%)
TPut 12 271751.00 ( 0.00%) 154763.00 (-43.05%) 277319.00 ( 2.05%) 277154.00 ( 1.99%) 265747.00 ( -2.21%) 262285.00 ( -3.48%)
TPut 13 297457.00 ( 0.00%) 119716.00 (-59.75%) 296068.00 ( -0.47%) 289716.00 ( -2.60%) 276527.00 ( -7.04%) 293199.00 ( -1.43%)
TPut 14 319074.00 ( 0.00%) 129730.00 (-59.34%) 311604.00 ( -2.34%) 308798.00 ( -3.22%) 316807.00 ( -0.71%) 275748.00 (-13.58%)
TPut 15 337859.00 ( 0.00%) 177494.00 (-47.47%) 329288.00 ( -2.54%) 300463.00 (-11.07%) 305116.00 ( -9.69%) 287814.00 (-14.81%)
TPut 16 356396.00 ( 0.00%) 145173.00 (-59.27%) 355616.00 ( -0.22%) 342598.00 ( -3.87%) 364077.00 ( 2.16%) 339649.00 ( -4.70%)
TPut 17 373925.00 ( 0.00%) 176956.00 (-52.68%) 368589.00 ( -1.43%) 360917.00 ( -3.48%) 366043.00 ( -2.11%) 345586.00 ( -7.58%)
TPut 18 388373.00 ( 0.00%) 150100.00 (-61.35%) 372873.00 ( -3.99%) 389062.00 ( 0.18%) 386779.00 ( -0.41%) 370871.00 ( -4.51%)

balancenuma suffered here. It is very likely that it was not able to handle
faults at a PMD level due to the lack of THP and I would expect that the
pages within a PMD boundary are not on the same node so pmd_numa is not
set. This results in its worst case of always having to deal with PTE
faults. Further, it must be migrating many or almost all of these because
the adaptscan patch made no difference. This is a worst-case scenario for
balancenuma. The scan rates later will indicate if that was the case.

autonuma did ok in that it was roughly comparable with mainline. Small
regressions.

I do not know how to describe numacores figures. Lets go with "not great".
Maybe it would have gotten better if it ran all the way up to 48 warehouses
or maybe the numa_maps reading is really kicking it harder than it kicks
autonuma or balancenuma. There is also the possibility that there is some
other patch in tip/master that is causing the problems.

SPECJBB PEAKS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123 rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Expctd Warehouse 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%)
Expctd Peak Bops 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)
Actual Warehouse 18.00 ( 0.00%) 15.00 (-16.67%) 18.00 ( 0.00%) 18.00 ( 0.00%) 18.00 ( 0.00%) 18.00 ( 0.00%)
Actual Peak Bops 388373.00 ( 0.00%) 177494.00 (-54.30%) 372873.00 ( -3.99%) 389062.00 ( 0.18%) 386779.00 ( -0.41%) 370871.00 ( -4.51%)
SpecJBB Bops 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)
SpecJBB Bops/JVM 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%) 0.00 ( 0.00%)

numacore regressed 54.30% at the actual peak of 15 warehouses which was
also fewer warehouses than the baseline kernel did.

autonuma and balancenuma both peaked at 18 warehouses (the maximum number
it ran) so it was still scaling ok but autonuma regressed 3.99% while
balancenuma regressed 4.51%.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 10405.85 7284.62 10826.33 10084.82 10134.62 10026.65
System 331.48 2505.16 432.62 506.52 538.50 529.03
Elapsed 1202.48 1242.71 1197.09 1204.03 1202.98 1201.74

numacores system CPU usage was very high.

autonumas and balancenumas were both higher than I'd like.


MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 163780 164588 193572 163984 164068 164416
Page Outs 137692 130984 265672 230884 188836 117192
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 1 1 4 2 2 2
THP collapse alloc 0 0 12 0 0 0
THP splits 0 0 0 0 0 0
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 7816428 5725511 6869488
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 8113 5943 7130
NUMA PTE updates 0 0 0 66123797 53516623 60445811
NUMA hint faults 0 0 0 63047742 51160357 58406746
NUMA hint local faults 0 0 0 18265709 14490652 16584428
NUMA pages migrated 0 0 0 7816428 5725511 6869488
AutoNUMA cost 0 0 0 315850 256285 292587

For balancenuma the scan rates are interesting. Note that adaptscan made
very little difference to the number of PTEs updated. This very strongly
implies that the scan rate is not being reduced as many of the NUMA faults
are resulting in a migration. This could be hit with a hammer by always
decreasing the scan rate on every fall but it would be a really really
blunt hammer.

As before, note that there was no THP activity because it was disabled.

Finally, the following are just rudimentary tests to check some basics.

KERNBENCH
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
User min 1296.38 ( 0.00%) 1310.16 ( -1.06%) 1296.52 ( -0.01%) 1297.53 ( -0.09%) 1298.35 ( -0.15%) 1299.53 ( -0.24%)
User mean 1298.86 ( 0.00%) 1311.49 ( -0.97%) 1299.73 ( -0.07%) 1300.50 ( -0.13%) 1301.56 ( -0.21%) 1301.42 ( -0.20%)
User stddev 1.65 ( 0.00%) 0.90 ( 45.15%) 2.68 (-62.37%) 3.47 (-110.63%) 2.19 (-33.06%) 1.59 ( 3.45%)
User max 1301.52 ( 0.00%) 1312.87 ( -0.87%) 1303.09 ( -0.12%) 1306.88 ( -0.41%) 1304.60 ( -0.24%) 1304.05 ( -0.19%)
System min 118.74 ( 0.00%) 129.74 ( -9.26%) 122.34 ( -3.03%) 121.82 ( -2.59%) 121.21 ( -2.08%) 119.43 ( -0.58%)
System mean 119.34 ( 0.00%) 130.24 ( -9.14%) 123.20 ( -3.24%) 122.15 ( -2.35%) 121.52 ( -1.83%) 120.17 ( -0.70%)
System stddev 0.42 ( 0.00%) 0.49 (-14.52%) 0.56 (-30.96%) 0.25 ( 41.66%) 0.43 ( -0.96%) 0.56 (-31.84%)
System max 120.00 ( 0.00%) 131.07 ( -9.22%) 123.88 ( -3.23%) 122.53 ( -2.11%) 122.36 ( -1.97%) 120.83 ( -0.69%)
Elapsed min 40.42 ( 0.00%) 41.42 ( -2.47%) 40.55 ( -0.32%) 41.43 ( -2.50%) 40.66 ( -0.59%) 40.09 ( 0.82%)
Elapsed mean 41.60 ( 0.00%) 42.63 ( -2.48%) 41.65 ( -0.13%) 42.27 ( -1.62%) 41.57 ( 0.06%) 41.12 ( 1.13%)
Elapsed stddev 0.72 ( 0.00%) 0.82 (-13.62%) 0.80 (-10.77%) 0.65 ( 9.93%) 0.86 (-19.29%) 0.64 ( 11.92%)
Elapsed max 42.41 ( 0.00%) 43.90 ( -3.51%) 42.79 ( -0.90%) 43.03 ( -1.46%) 42.76 ( -0.83%) 41.87 ( 1.27%)
CPU min 3341.00 ( 0.00%) 3279.00 ( 1.86%) 3319.00 ( 0.66%) 3298.00 ( 1.29%) 3319.00 ( 0.66%) 3392.00 ( -1.53%)
CPU mean 3409.80 ( 0.00%) 3382.40 ( 0.80%) 3417.00 ( -0.21%) 3365.60 ( 1.30%) 3424.00 ( -0.42%) 3457.00 ( -1.38%)
CPU stddev 63.50 ( 0.00%) 66.38 ( -4.53%) 70.01 (-10.25%) 50.19 ( 20.97%) 74.58 (-17.45%) 56.25 ( 11.42%)
CPU max 3514.00 ( 0.00%) 3479.00 ( 1.00%) 3516.00 ( -0.06%) 3426.00 ( 2.50%) 3506.00 ( 0.23%) 3546.00 ( -0.91%)

numacore has improved a lot here here. It only regressed 2.48% which is an improvement
over earlier releases.

autonuma and balancenuma both show some system CPU overhead but averaged
over the multiple runs, it's not very obvious.


MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 7821.05 7900.01 7829.89 7837.23 7840.19 7835.43
System 735.84 802.86 758.93 753.98 749.44 740.47
Elapsed 298.72 305.17 298.52 300.67 296.84 296.20

System CPU overhead is a bit more obvious here. balancenuma adds 5ish
seconds (0.62%). autonuma adds around 23 seconds (3.04%). numacore adds
67 seconds (8.34%)

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 156 0 28 148 8 16
Page Outs 1519504 1740760 1460708 1548820 1510256 1548792
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 323 351 365 374 378 316
THP collapse alloc 22 1 10071 30 7 28
THP splits 4 2 151 5 1 7
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 558483 50325 100470
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 579 52 104
NUMA PTE updates 0 0 0 109735841 86018422 65125719
NUMA hint faults 0 0 0 68484623 53110294 40259527
NUMA hint local faults 0 0 0 65051361 50701491 37787066
NUMA pages migrated 0 0 0 558483 50325 100470
AutoNUMA cost 0 0 0 343201 266154 201755

And you can see where balacenumas system CPU overhead is coming from. Despite
the fact that most of the processes are short-lived, they are still living
longer than 1 second and being scheduled on another node which triggers
the PTE scanner.

Note how adaptscan affects the number of PTE updates as it reduces the scan rate.

Note too how delaystart reduces it further because PTE scanning is postponed
until the task is scheduled on a new node.

AIM9
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Min page_test 337620.00 ( 0.00%) 382584.94 ( 13.32%) 274380.00 (-18.73%) 386013.33 ( 14.33%) 367068.62 ( 8.72%) 389186.67 ( 15.27%)
Min brk_test 3189200.00 ( 0.00%) 3130446.37 ( -1.84%) 3036200.00 ( -4.80%) 3261733.33 ( 2.27%) 2729513.66 (-14.41%) 3232266.67 ( 1.35%)
Min exec_test 263.16 ( 0.00%) 270.49 ( 2.79%) 275.97 ( 4.87%) 263.49 ( 0.13%) 262.32 ( -0.32%) 263.33 ( 0.06%)
Min fork_test 1489.36 ( 0.00%) 1533.86 ( 2.99%) 1754.15 ( 17.78%) 1503.66 ( 0.96%) 1500.66 ( 0.76%) 1484.69 ( -0.31%)
Mean page_test 376537.21 ( 0.00%) 407175.97 ( 8.14%) 369202.58 ( -1.95%) 408484.43 ( 8.48%) 401734.17 ( 6.69%) 419007.65 ( 11.28%)
Mean brk_test 3217657.48 ( 0.00%) 3223631.95 ( 0.19%) 3142007.48 ( -2.35%) 3301305.55 ( 2.60%) 2815992.93 (-12.48%) 3270913.07 ( 1.66%)
Mean exec_test 266.09 ( 0.00%) 275.19 ( 3.42%) 280.30 ( 5.34%) 268.35 ( 0.85%) 265.03 ( -0.40%) 268.45 ( 0.89%)
Mean fork_test 1521.05 ( 0.00%) 1569.47 ( 3.18%) 1844.55 ( 21.27%) 1526.62 ( 0.37%) 1531.56 ( 0.69%) 1529.75 ( 0.57%)
Stddev page_test 26593.06 ( 0.00%) 11327.52 (-57.40%) 35313.32 ( 32.79%) 11484.61 (-56.81%) 15098.72 (-43.22%) 12553.59 (-52.79%)
Stddev brk_test 14591.07 ( 0.00%) 51911.60 (255.78%) 42645.66 (192.27%) 22593.16 ( 54.84%) 41088.23 (181.60%) 26548.94 ( 81.95%)
Stddev exec_test 2.18 ( 0.00%) 2.83 ( 29.93%) 3.47 ( 59.06%) 2.90 ( 33.05%) 2.01 ( -7.84%) 3.42 ( 56.74%)
Stddev fork_test 22.76 ( 0.00%) 18.41 (-19.10%) 68.22 (199.75%) 20.41 (-10.34%) 20.20 (-11.23%) 28.56 ( 25.48%)
Max page_test 407320.00 ( 0.00%) 421940.00 ( 3.59%) 398026.67 ( -2.28%) 421940.00 ( 3.59%) 426755.50 ( 4.77%) 438146.67 ( 7.57%)
Max brk_test 3240200.00 ( 0.00%) 3321800.00 ( 2.52%) 3227733.33 ( -0.38%) 3337666.67 ( 3.01%) 2863933.33 (-11.61%) 3321852.10 ( 2.52%)
Max exec_test 269.97 ( 0.00%) 281.96 ( 4.44%) 287.81 ( 6.61%) 272.67 ( 1.00%) 268.82 ( -0.43%) 273.67 ( 1.37%)
Max fork_test 1554.82 ( 0.00%) 1601.33 ( 2.99%) 1926.91 ( 23.93%) 1565.62 ( 0.69%) 1559.39 ( 0.29%) 1583.50 ( 1.84%)

This has much improved in general.

page_test is looking generally good on average although the large variances
make it a bit unreliable. brk_test is looking ok too. autonuma regressed
but with the large variances it is within the noise. exec_test fork_test
both look fine.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 0.14 2.83 2.87 2.73 2.79 2.80
System 0.24 0.72 0.75 0.72 0.71 0.71
Elapsed 721.97 724.55 724.52 724.36 725.08 724.54


System CPU overhead is noticeable again but it's not really a factor for this load.

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 7252 7180 7176 7416 7672 7168
Page Outs 72684 74080 74844 73980 74472 74844
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 0 15 0 36 18 19
THP collapse alloc 0 0 0 0 0 2
THP splits 0 0 0 0 0 1
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 75 842 581
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 0 0 0
NUMA PTE updates 0 0 0 40740052 41937943 1669018
NUMA hint faults 0 0 0 20273 17880 9628
NUMA hint local faults 0 0 0 15901 15562 7259
NUMA pages migrated 0 0 0 75 842 581
AutoNUMA cost 0 0 0 386 382 59

The evidence is there that the load is active enough to trigger automatic
numa migration activity even though the processes are all small. For
balancenuma, being scheduled on a new node is enough.

HACKBENCH PIPES
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Procs 1 0.0537 ( 0.00%) 0.0282 ( 47.58%) 0.0233 ( 56.73%) 0.0400 ( 25.56%) 0.0220 ( 59.06%) 0.0269 ( 50.02%)
Procs 4 0.0755 ( 0.00%) 0.0710 ( 5.96%) 0.0540 ( 28.48%) 0.0721 ( 4.54%) 0.0679 ( 10.07%) 0.0684 ( 9.36%)
Procs 8 0.0795 ( 0.00%) 0.0933 (-17.39%) 0.1032 (-29.87%) 0.0859 ( -8.08%) 0.0736 ( 7.35%) 0.0954 (-20.11%)
Procs 12 0.1002 ( 0.00%) 0.1069 ( -6.62%) 0.1760 (-75.56%) 0.1051 ( -4.88%) 0.0809 ( 19.26%) 0.0926 ( 7.68%)
Procs 16 0.1086 ( 0.00%) 0.1282 (-18.07%) 0.1695 (-56.08%) 0.1380 (-27.07%) 0.1055 ( 2.85%) 0.1239 (-14.13%)
Procs 20 0.1455 ( 0.00%) 0.1450 ( 0.37%) 0.3690 (-153.54%) 0.1276 ( 12.36%) 0.1588 ( -9.12%) 0.1464 ( -0.56%)
Procs 24 0.1548 ( 0.00%) 0.1638 ( -5.82%) 0.4010 (-158.99%) 0.1648 ( -6.41%) 0.1575 ( -1.69%) 0.1621 ( -4.69%)
Procs 28 0.1995 ( 0.00%) 0.2089 ( -4.72%) 0.3936 (-97.31%) 0.1829 ( 8.33%) 0.2057 ( -3.09%) 0.1942 ( 2.66%)
Procs 32 0.2030 ( 0.00%) 0.2352 (-15.86%) 0.3780 (-86.21%) 0.2189 ( -7.85%) 0.2011 ( 0.92%) 0.2207 ( -8.71%)
Procs 36 0.2323 ( 0.00%) 0.2502 ( -7.70%) 0.4813 (-107.14%) 0.2449 ( -5.41%) 0.2492 ( -7.27%) 0.2250 ( 3.16%)
Procs 40 0.2708 ( 0.00%) 0.2734 ( -0.97%) 0.6089 (-124.84%) 0.2832 ( -4.57%) 0.2822 ( -4.20%) 0.2658 ( 1.85%)

Everyone is a bit all over the place here and autonuma is consistent with the
last results in that it's hurting hackbench pipes results. With such large
differences on each thread number it's difficult to draw any conclusion
here. I'd have to dig into the data more and see what's happening but
system CPU can be a proxy measure so onwards...


MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 57.28 61.04 61.94 61.00 59.64 58.88
System 1849.51 2011.94 1873.74 1918.32 1864.12 1916.33
Elapsed 96.56 100.27 145.82 97.88 96.59 98.28

Yep, system CPU usage is up. Highest in numacore, balancenuma is adding a
chunk as well. autonuma appears to add less but the usual thread comment
applies.


MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 24 24 24 24 24 24
Page Outs 1668 1772 2284 1752 2072 1756
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 0 5 0 6 6 0
THP collapse alloc 0 0 0 2 0 5
THP splits 0 0 0 0 0 0
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 2 0 28
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 0 0 0
NUMA PTE updates 0 0 0 54736 1061 42752
NUMA hint faults 0 0 0 2247 518 71
NUMA hint local faults 0 0 0 29 1 0
NUMA pages migrated 0 0 0 2 0 28
AutoNUMA cost 0 0 0 11 2 0

And here is the evidence again. balancenuma at least is triggering the
migration logic while running hackbench. It may be that as the thread
counts grow it simply becomes more likely it gets scheduled on another
node and starts up even though it is not memory intensive.

I could avoid firing the PTE scanner if the processes RSS is low I guess
but that feels hacky.

HACKBENCH SOCKETS
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
Procs 1 0.0220 ( 0.00%) 0.0240 ( -9.09%) 0.0276 (-25.34%) 0.0228 ( -3.83%) 0.0282 (-28.18%) 0.0207 ( 6.11%)
Procs 4 0.0535 ( 0.00%) 0.0490 ( 8.35%) 0.0888 (-66.12%) 0.0467 ( 12.70%) 0.0442 ( 17.27%) 0.0494 ( 7.52%)
Procs 8 0.0716 ( 0.00%) 0.0726 ( -1.33%) 0.1665 (-132.54%) 0.0718 ( -0.25%) 0.0700 ( 2.19%) 0.0701 ( 2.09%)
Procs 12 0.1026 ( 0.00%) 0.0975 ( 4.99%) 0.1290 (-25.73%) 0.0981 ( 4.34%) 0.0946 ( 7.76%) 0.0967 ( 5.71%)
Procs 16 0.1272 ( 0.00%) 0.1268 ( 0.25%) 0.3193 (-151.05%) 0.1229 ( 3.35%) 0.1224 ( 3.78%) 0.1270 ( 0.11%)
Procs 20 0.1487 ( 0.00%) 0.1537 ( -3.40%) 0.1793 (-20.57%) 0.1550 ( -4.25%) 0.1519 ( -2.17%) 0.1579 ( -6.18%)
Procs 24 0.1794 ( 0.00%) 0.1797 ( -0.16%) 0.4423 (-146.55%) 0.1851 ( -3.19%) 0.1807 ( -0.71%) 0.1904 ( -6.15%)
Procs 28 0.2165 ( 0.00%) 0.2156 ( 0.44%) 0.5012 (-131.50%) 0.2147 ( 0.85%) 0.2126 ( 1.82%) 0.2194 ( -1.34%)
Procs 32 0.2344 ( 0.00%) 0.2458 ( -4.89%) 0.7008 (-199.00%) 0.2498 ( -6.60%) 0.2449 ( -4.50%) 0.2528 ( -7.86%)
Procs 36 0.2623 ( 0.00%) 0.2752 ( -4.92%) 0.7469 (-184.73%) 0.2852 ( -8.72%) 0.2762 ( -5.30%) 0.2826 ( -7.72%)
Procs 40 0.2921 ( 0.00%) 0.3030 ( -3.72%) 0.7753 (-165.46%) 0.3085 ( -5.61%) 0.3046 ( -4.28%) 0.3182 ( -8.94%)

Mix of gains and losses except for autonuma which takes a hammering.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 39.43 38.44 48.79 41.48 39.54 42.47
System 2249.41 2273.39 2678.90 2285.03 2218.08 2302.44
Elapsed 104.91 105.83 173.39 105.50 104.38 106.55

Less system CPU overhead from numacore here. autonuma adds a lot. balancenuma
is adding more than it should.


MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 4 4 4 4 4 4
Page Outs 1952 2104 2812 1796 1952 2264
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 0 0 0 6 0 0
THP collapse alloc 0 0 1 0 0 0
THP splits 0 0 0 0 0 0
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 328 513 19
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 0 0 0
NUMA PTE updates 0 0 0 21522 22448 21376
NUMA hint faults 0 0 0 1082 546 52
NUMA hint local faults 0 0 0 217 0 31
NUMA pages migrated 0 0 0 328 513 19
AutoNUMA cost 0 0 0 5 2 0

Again the PTE scanners are in there. They will not help hackbench figures.

PAGE FAULT TEST
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1 rc6-numacore-20121123rc6-autonuma-v28fastr4 rc6-thpmigrate-v5r1 rc6-adaptscan-v5r1 rc6-delaystart-v5r4
System 1 8.0195 ( 0.00%) 8.2535 ( -2.92%) 8.0495 ( -0.37%) 37.7675 (-370.95%) 38.0265 (-374.18%) 7.9775 ( 0.52%)
System 2 8.0095 ( 0.00%) 8.0905 ( -1.01%) 8.1415 ( -1.65%) 12.0595 (-50.56%) 11.4145 (-42.51%) 7.9900 ( 0.24%)
System 3 8.1025 ( 0.00%) 8.1725 ( -0.86%) 8.3525 ( -3.09%) 9.7380 (-20.19%) 9.4905 (-17.13%) 8.1110 ( -0.10%)
System 4 8.1635 ( 0.00%) 8.2875 ( -1.52%) 8.5415 ( -4.63%) 8.7440 ( -7.11%) 8.6145 ( -5.52%) 8.1800 ( -0.20%)
System 5 8.4600 ( 0.00%) 8.5900 ( -1.54%) 8.8910 ( -5.09%) 8.8365 ( -4.45%) 8.6755 ( -2.55%) 8.5105 ( -0.60%)
System 6 8.7565 ( 0.00%) 8.8120 ( -0.63%) 9.3630 ( -6.93%) 8.9460 ( -2.16%) 8.8490 ( -1.06%) 8.7390 ( 0.20%)
System 7 8.7390 ( 0.00%) 8.8430 ( -1.19%) 9.9310 (-13.64%) 9.0680 ( -3.76%) 8.9600 ( -2.53%) 8.8300 ( -1.04%)
System 8 8.7700 ( 0.00%) 8.9110 ( -1.61%) 10.1445 (-15.67%) 9.0435 ( -3.12%) 8.8060 ( -0.41%) 8.7615 ( 0.10%)
System 9 9.3455 ( 0.00%) 9.3505 ( -0.05%) 10.5340 (-12.72%) 9.4765 ( -1.40%) 9.3955 ( -0.54%) 9.2860 ( 0.64%)
System 10 9.4195 ( 0.00%) 9.4780 ( -0.62%) 11.6035 (-23.19%) 9.6500 ( -2.45%) 9.5350 ( -1.23%) 9.4735 ( -0.57%)
System 11 9.5405 ( 0.00%) 9.6495 ( -1.14%) 12.8475 (-34.66%) 9.7370 ( -2.06%) 9.5995 ( -0.62%) 9.5835 ( -0.45%)
System 12 9.7035 ( 0.00%) 9.7470 ( -0.45%) 13.2560 (-36.61%) 9.8445 ( -1.45%) 9.7260 ( -0.23%) 9.5890 ( 1.18%)
System 13 10.2745 ( 0.00%) 10.2270 ( 0.46%) 13.5490 (-31.87%) 10.3840 ( -1.07%) 10.1880 ( 0.84%) 10.1480 ( 1.23%)
System 14 10.5405 ( 0.00%) 10.6135 ( -0.69%) 13.9225 (-32.09%) 10.6915 ( -1.43%) 10.5255 ( 0.14%) 10.5620 ( -0.20%)
System 15 10.7190 ( 0.00%) 10.8635 ( -1.35%) 15.0760 (-40.65%) 10.9380 ( -2.04%) 10.8190 ( -0.93%) 10.7040 ( 0.14%)
System 16 11.2575 ( 0.00%) 11.2750 ( -0.16%) 15.0995 (-34.13%) 11.3315 ( -0.66%) 11.2615 ( -0.04%) 11.2345 ( 0.20%)
System 17 11.8090 ( 0.00%) 12.0865 ( -2.35%) 16.1715 (-36.94%) 11.8925 ( -0.71%) 11.7655 ( 0.37%) 11.7585 ( 0.43%)
System 18 12.3910 ( 0.00%) 12.4270 ( -0.29%) 16.7410 (-35.11%) 12.4425 ( -0.42%) 12.4235 ( -0.26%) 12.3295 ( 0.50%)
System 19 12.7915 ( 0.00%) 12.8340 ( -0.33%) 16.7175 (-30.69%) 12.7980 ( -0.05%) 12.9825 ( -1.49%) 12.7980 ( -0.05%)
System 20 13.5870 ( 0.00%) 13.3100 ( 2.04%) 16.5590 (-21.87%) 13.2725 ( 2.31%) 13.1720 ( 3.05%) 13.1855 ( 2.96%)
System 21 13.9325 ( 0.00%) 13.9705 ( -0.27%) 16.9110 (-21.38%) 13.8975 ( 0.25%) 14.0360 ( -0.74%) 13.8760 ( 0.41%)
System 22 14.5810 ( 0.00%) 14.7345 ( -1.05%) 18.1160 (-24.24%) 14.7635 ( -1.25%) 14.4805 ( 0.69%) 14.4130 ( 1.15%)
System 23 15.0710 ( 0.00%) 15.1400 ( -0.46%) 18.3805 (-21.96%) 15.2020 ( -0.87%) 15.1100 ( -0.26%) 15.0385 ( 0.22%)
System 24 15.8815 ( 0.00%) 15.7120 ( 1.07%) 19.7195 (-24.17%) 15.6205 ( 1.64%) 15.5965 ( 1.79%) 15.5950 ( 1.80%)
System 25 16.1480 ( 0.00%) 16.6115 ( -2.87%) 19.5480 (-21.06%) 16.2305 ( -0.51%) 16.1775 ( -0.18%) 16.1510 ( -0.02%)
System 26 17.1075 ( 0.00%) 17.1015 ( 0.04%) 19.7100 (-15.21%) 17.0800 ( 0.16%) 16.8955 ( 1.24%) 16.7845 ( 1.89%)
System 27 17.3015 ( 0.00%) 17.4120 ( -0.64%) 20.2640 (-17.12%) 17.2615 ( 0.23%) 17.2430 ( 0.34%) 17.2895 ( 0.07%)
System 28 17.8750 ( 0.00%) 17.9675 ( -0.52%) 21.2030 (-18.62%) 17.7305 ( 0.81%) 17.7480 ( 0.71%) 17.7615 ( 0.63%)
System 29 18.5260 ( 0.00%) 18.8165 ( -1.57%) 20.4045 (-10.14%) 18.3895 ( 0.74%) 18.2980 ( 1.23%) 18.4480 ( 0.42%)
System 30 19.0865 ( 0.00%) 19.1865 ( -0.52%) 21.0970 (-10.53%) 18.9800 ( 0.56%) 18.8510 ( 1.23%) 19.0500 ( 0.19%)
System 31 19.8095 ( 0.00%) 19.7210 ( 0.45%) 22.8030 (-15.11%) 19.7365 ( 0.37%) 19.6370 ( 0.87%) 19.9115 ( -0.51%)
System 32 20.3360 ( 0.00%) 20.3510 ( -0.07%) 23.3780 (-14.96%) 20.2040 ( 0.65%) 20.0695 ( 1.31%) 20.2110 ( 0.61%)
System 33 21.0240 ( 0.00%) 21.0225 ( 0.01%) 23.3495 (-11.06%) 20.8200 ( 0.97%) 20.6455 ( 1.80%) 21.0125 ( 0.05%)
System 34 21.6065 ( 0.00%) 21.9710 ( -1.69%) 23.2650 ( -7.68%) 21.4115 ( 0.90%) 21.4230 ( 0.85%) 21.8570 ( -1.16%)
System 35 22.3005 ( 0.00%) 22.3190 ( -0.08%) 23.2305 ( -4.17%) 22.1695 ( 0.59%) 22.0695 ( 1.04%) 22.2485 ( 0.23%)
System 36 23.0245 ( 0.00%) 22.9430 ( 0.35%) 24.8930 ( -8.12%) 22.7685 ( 1.11%) 22.7385 ( 1.24%) 23.0900 ( -0.28%)
System 37 23.8225 ( 0.00%) 23.7100 ( 0.47%) 24.9290 ( -4.64%) 23.5425 ( 1.18%) 23.3270 ( 2.08%) 23.6795 ( 0.60%)
System 38 24.5015 ( 0.00%) 24.4780 ( 0.10%) 25.3145 ( -3.32%) 24.3460 ( 0.63%) 24.1105 ( 1.60%) 24.5430 ( -0.17%)
System 39 25.1855 ( 0.00%) 25.1445 ( 0.16%) 25.1985 ( -0.05%) 25.1355 ( 0.20%) 24.9305 ( 1.01%) 25.0000 ( 0.74%)
System 40 25.8990 ( 0.00%) 25.8310 ( 0.26%) 26.5205 ( -2.40%) 25.7115 ( 0.72%) 25.5310 ( 1.42%) 25.9605 ( -0.24%)
System 41 26.5585 ( 0.00%) 26.7045 ( -0.55%) 27.5060 ( -3.57%) 26.5825 ( -0.09%) 26.3515 ( 0.78%) 26.5835 ( -0.09%)
System 42 27.3840 ( 0.00%) 27.5735 ( -0.69%) 27.3995 ( -0.06%) 27.2475 ( 0.50%) 27.1680 ( 0.79%) 27.3810 ( 0.01%)
System 43 28.1595 ( 0.00%) 28.2515 ( -0.33%) 27.5285 ( 2.24%) 27.9805 ( 0.64%) 27.8795 ( 0.99%) 28.1255 ( 0.12%)
System 44 28.8460 ( 0.00%) 29.0390 ( -0.67%) 28.4580 ( 1.35%) 28.9385 ( -0.32%) 28.7750 ( 0.25%) 28.8655 ( -0.07%)
System 45 29.5430 ( 0.00%) 29.8280 ( -0.96%) 28.5270 ( 3.44%) 29.8165 ( -0.93%) 29.6105 ( -0.23%) 29.5655 ( -0.08%)
System 46 30.3290 ( 0.00%) 30.6420 ( -1.03%) 29.1955 ( 3.74%) 30.6235 ( -0.97%) 30.4205 ( -0.30%) 30.2640 ( 0.21%)
System 47 30.9365 ( 0.00%) 31.3360 ( -1.29%) 29.2915 ( 5.32%) 31.3365 ( -1.29%) 31.3660 ( -1.39%) 30.9300 ( 0.02%)
System 48 31.5680 ( 0.00%) 32.1220 ( -1.75%) 29.3805 ( 6.93%) 32.1925 ( -1.98%) 31.9820 ( -1.31%) 31.6180 ( -0.16%)

autonuma is showing a lot of system CPU overhead here. numacore and
balancenuma are ok. Some blips there but small enough that's nothing to
get excited over.

Elapsed 1 8.7170 ( 0.00%) 8.9585 ( -2.77%) 8.7485 ( -0.36%) 38.5375 (-342.10%) 38.8065 (-345.18%) 8.6755 ( 0.48%)
Elapsed 2 4.4075 ( 0.00%) 4.4345 ( -0.61%) 4.5320 ( -2.82%) 6.5940 (-49.61%) 6.1920 (-40.49%) 4.4090 ( -0.03%)
Elapsed 3 2.9785 ( 0.00%) 2.9990 ( -0.69%) 3.0945 ( -3.89%) 3.5820 (-20.26%) 3.4765 (-16.72%) 2.9840 ( -0.18%)
Elapsed 4 2.2530 ( 0.00%) 2.3010 ( -2.13%) 2.3845 ( -5.84%) 2.4400 ( -8.30%) 2.4045 ( -6.72%) 2.2675 ( -0.64%)
Elapsed 5 1.9070 ( 0.00%) 1.9315 ( -1.28%) 1.9885 ( -4.27%) 2.0180 ( -5.82%) 1.9725 ( -3.43%) 1.9195 ( -0.66%)
Elapsed 6 1.6490 ( 0.00%) 1.6705 ( -1.30%) 1.7470 ( -5.94%) 1.6695 ( -1.24%) 1.6575 ( -0.52%) 1.6385 ( 0.64%)
Elapsed 7 1.4235 ( 0.00%) 1.4385 ( -1.05%) 1.6090 (-13.03%) 1.4590 ( -2.49%) 1.4495 ( -1.83%) 1.4200 ( 0.25%)
Elapsed 8 1.2500 ( 0.00%) 1.2600 ( -0.80%) 1.4345 (-14.76%) 1.2650 ( -1.20%) 1.2340 ( 1.28%) 1.2345 ( 1.24%)
Elapsed 9 1.2090 ( 0.00%) 1.2125 ( -0.29%) 1.3355 (-10.46%) 1.2275 ( -1.53%) 1.2185 ( -0.79%) 1.1975 ( 0.95%)
Elapsed 10 1.0885 ( 0.00%) 1.0900 ( -0.14%) 1.3390 (-23.01%) 1.1195 ( -2.85%) 1.1110 ( -2.07%) 1.0985 ( -0.92%)
Elapsed 11 0.9970 ( 0.00%) 1.0220 ( -2.51%) 1.3575 (-36.16%) 1.0210 ( -2.41%) 1.0145 ( -1.76%) 1.0005 ( -0.35%)
Elapsed 12 0.9355 ( 0.00%) 0.9375 ( -0.21%) 1.3060 (-39.60%) 0.9505 ( -1.60%) 0.9390 ( -0.37%) 0.9205 ( 1.60%)
Elapsed 13 0.9345 ( 0.00%) 0.9320 ( 0.27%) 1.2940 (-38.47%) 0.9435 ( -0.96%) 0.9200 ( 1.55%) 0.9195 ( 1.61%)
Elapsed 14 0.8815 ( 0.00%) 0.8960 ( -1.64%) 1.2755 (-44.70%) 0.8955 ( -1.59%) 0.8780 ( 0.40%) 0.8860 ( -0.51%)
Elapsed 15 0.8175 ( 0.00%) 0.8375 ( -2.45%) 1.3655 (-67.03%) 0.8470 ( -3.61%) 0.8260 ( -1.04%) 0.8170 ( 0.06%)
Elapsed 16 0.8135 ( 0.00%) 0.8045 ( 1.11%) 1.3165 (-61.83%) 0.8130 ( 0.06%) 0.8040 ( 1.17%) 0.7970 ( 2.03%)
Elapsed 17 0.8375 ( 0.00%) 0.8530 ( -1.85%) 1.4175 (-69.25%) 0.8380 ( -0.06%) 0.8405 ( -0.36%) 0.8305 ( 0.84%)
Elapsed 18 0.8045 ( 0.00%) 0.8100 ( -0.68%) 1.4135 (-75.70%) 0.8120 ( -0.93%) 0.8050 ( -0.06%) 0.8010 ( 0.44%)
Elapsed 19 0.7600 ( 0.00%) 0.7625 ( -0.33%) 1.3640 (-79.47%) 0.7700 ( -1.32%) 0.7870 ( -3.55%) 0.7720 ( -1.58%)
Elapsed 20 0.7860 ( 0.00%) 0.7410 ( 5.73%) 1.3125 (-66.98%) 0.7580 ( 3.56%) 0.7375 ( 6.17%) 0.7370 ( 6.23%)
Elapsed 21 0.8080 ( 0.00%) 0.7970 ( 1.36%) 1.2775 (-58.11%) 0.7960 ( 1.49%) 0.8175 ( -1.18%) 0.7970 ( 1.36%)
Elapsed 22 0.7930 ( 0.00%) 0.7840 ( 1.13%) 1.3940 (-75.79%) 0.8035 ( -1.32%) 0.7780 ( 1.89%) 0.7640 ( 3.66%)
Elapsed 23 0.7570 ( 0.00%) 0.7525 ( 0.59%) 1.3490 (-78.20%) 0.7915 ( -4.56%) 0.7710 ( -1.85%) 0.7800 ( -3.04%)
Elapsed 24 0.7705 ( 0.00%) 0.7280 ( 5.52%) 1.4550 (-88.84%) 0.7400 ( 3.96%) 0.7630 ( 0.97%) 0.7575 ( 1.69%)
Elapsed 25 0.8165 ( 0.00%) 0.8630 ( -5.70%) 1.3755 (-68.46%) 0.8790 ( -7.65%) 0.9015 (-10.41%) 0.8505 ( -4.16%)
Elapsed 26 0.8465 ( 0.00%) 0.8425 ( 0.47%) 1.3405 (-58.36%) 0.8790 ( -3.84%) 0.8660 ( -2.30%) 0.8360 ( 1.24%)
Elapsed 27 0.8025 ( 0.00%) 0.8045 ( -0.25%) 1.3655 (-70.16%) 0.8325 ( -3.74%) 0.8420 ( -4.92%) 0.8175 ( -1.87%)
Elapsed 28 0.7990 ( 0.00%) 0.7850 ( 1.75%) 1.3475 (-68.65%) 0.8075 ( -1.06%) 0.8185 ( -2.44%) 0.7885 ( 1.31%)
Elapsed 29 0.8010 ( 0.00%) 0.8005 ( 0.06%) 1.2595 (-57.24%) 0.8075 ( -0.81%) 0.8130 ( -1.50%) 0.7970 ( 0.50%)
Elapsed 30 0.7965 ( 0.00%) 0.7825 ( 1.76%) 1.2365 (-55.24%) 0.8105 ( -1.76%) 0.8050 ( -1.07%) 0.8095 ( -1.63%)
Elapsed 31 0.7820 ( 0.00%) 0.7740 ( 1.02%) 1.2670 (-62.02%) 0.7980 ( -2.05%) 0.8035 ( -2.75%) 0.7970 ( -1.92%)
Elapsed 32 0.7905 ( 0.00%) 0.7675 ( 2.91%) 1.3765 (-74.13%) 0.8000 ( -1.20%) 0.7935 ( -0.38%) 0.7725 ( 2.28%)
Elapsed 33 0.7980 ( 0.00%) 0.7640 ( 4.26%) 1.2225 (-53.20%) 0.7985 ( -0.06%) 0.7945 ( 0.44%) 0.7900 ( 1.00%)
Elapsed 34 0.7875 ( 0.00%) 0.7820 ( 0.70%) 1.1880 (-50.86%) 0.8030 ( -1.97%) 0.8175 ( -3.81%) 0.8090 ( -2.73%)
Elapsed 35 0.7910 ( 0.00%) 0.7735 ( 2.21%) 1.2100 (-52.97%) 0.8050 ( -1.77%) 0.8025 ( -1.45%) 0.7830 ( 1.01%)
Elapsed 36 0.7745 ( 0.00%) 0.7565 ( 2.32%) 1.3075 (-68.82%) 0.8010 ( -3.42%) 0.8095 ( -4.52%) 0.8000 ( -3.29%)
Elapsed 37 0.7960 ( 0.00%) 0.7660 ( 3.77%) 1.1970 (-50.38%) 0.8045 ( -1.07%) 0.7950 ( 0.13%) 0.8010 ( -0.63%)
Elapsed 38 0.7800 ( 0.00%) 0.7825 ( -0.32%) 1.1305 (-44.94%) 0.8095 ( -3.78%) 0.8015 ( -2.76%) 0.8065 ( -3.40%)
Elapsed 39 0.7915 ( 0.00%) 0.7635 ( 3.54%) 1.0915 (-37.90%) 0.8085 ( -2.15%) 0.8060 ( -1.83%) 0.7790 ( 1.58%)
Elapsed 40 0.7810 ( 0.00%) 0.7635 ( 2.24%) 1.1175 (-43.09%) 0.7870 ( -0.77%) 0.8025 ( -2.75%) 0.7895 ( -1.09%)
Elapsed 41 0.7675 ( 0.00%) 0.7730 ( -0.72%) 1.1610 (-51.27%) 0.8025 ( -4.56%) 0.7780 ( -1.37%) 0.7870 ( -2.54%)
Elapsed 42 0.7705 ( 0.00%) 0.7925 ( -2.86%) 1.1095 (-44.00%) 0.7850 ( -1.88%) 0.7890 ( -2.40%) 0.7950 ( -3.18%)
Elapsed 43 0.7830 ( 0.00%) 0.7680 ( 1.92%) 1.1470 (-46.49%) 0.7960 ( -1.66%) 0.7830 ( 0.00%) 0.7855 ( -0.32%)
Elapsed 44 0.7745 ( 0.00%) 0.7560 ( 2.39%) 1.1575 (-49.45%) 0.7870 ( -1.61%) 0.7950 ( -2.65%) 0.7835 ( -1.16%)
Elapsed 45 0.7665 ( 0.00%) 0.7635 ( 0.39%) 1.0200 (-33.07%) 0.7935 ( -3.52%) 0.7745 ( -1.04%) 0.7695 ( -0.39%)
Elapsed 46 0.7660 ( 0.00%) 0.7695 ( -0.46%) 1.0610 (-38.51%) 0.7835 ( -2.28%) 0.7830 ( -2.22%) 0.7725 ( -0.85%)
Elapsed 47 0.7575 ( 0.00%) 0.7710 ( -1.78%) 1.0340 (-36.50%) 0.7895 ( -4.22%) 0.7800 ( -2.97%) 0.7755 ( -2.38%)
Elapsed 48 0.7740 ( 0.00%) 0.7665 ( 0.97%) 1.0505 (-35.72%) 0.7735 ( 0.06%) 0.7795 ( -0.71%) 0.7630 ( 1.42%)

autonuma hurts here. numacore and balancenuma are ok.

Faults/cpu 1 379968.7014 ( 0.00%) 369716.7221 ( -2.70%) 378284.9642 ( -0.44%) 86427.8993 (-77.25%) 87036.4027 (-77.09%) 381109.9811 ( 0.30%)
Faults/cpu 2 379324.0493 ( 0.00%) 376624.9420 ( -0.71%) 372938.2576 ( -1.68%) 258617.9410 (-31.82%) 272229.5372 (-28.23%) 379332.1426 ( 0.00%)
Faults/cpu 3 374110.9252 ( 0.00%) 371809.0394 ( -0.62%) 362384.3379 ( -3.13%) 315364.3194 (-15.70%) 322932.0319 (-13.68%) 373740.6327 ( -0.10%)
Faults/cpu 4 371054.3320 ( 0.00%) 366010.1683 ( -1.36%) 354374.7659 ( -4.50%) 347925.4511 ( -6.23%) 351926.8213 ( -5.15%) 369718.8116 ( -0.36%)
Faults/cpu 5 357644.9509 ( 0.00%) 353116.2568 ( -1.27%) 340954.4156 ( -4.67%) 342873.2808 ( -4.13%) 348837.4032 ( -2.46%) 355357.9808 ( -0.64%)
Faults/cpu 6 345166.0268 ( 0.00%) 343605.5937 ( -0.45%) 324566.0244 ( -5.97%) 339177.9361 ( -1.73%) 341785.4988 ( -0.98%) 345830.4062 ( 0.19%)
Faults/cpu 7 346686.9164 ( 0.00%) 343254.5354 ( -0.99%) 307569.0063 (-11.28%) 334501.4563 ( -3.51%) 337715.4825 ( -2.59%) 342176.3071 ( -1.30%)
Faults/cpu 8 345617.2248 ( 0.00%) 341409.8570 ( -1.22%) 301005.0046 (-12.91%) 335797.8156 ( -2.84%) 344630.9102 ( -0.29%) 346313.4237 ( 0.20%)
Faults/cpu 9 324187.6755 ( 0.00%) 324493.4570 ( 0.09%) 292467.7328 ( -9.78%) 320295.6357 ( -1.20%) 321737.9910 ( -0.76%) 325867.9016 ( 0.52%)
Faults/cpu 10 323260.5270 ( 0.00%) 321706.2762 ( -0.48%) 267253.0641 (-17.33%) 314825.0722 ( -2.61%) 317861.8672 ( -1.67%) 320046.7340 ( -0.99%)
Faults/cpu 11 319485.7975 ( 0.00%) 315952.8672 ( -1.11%) 242837.3072 (-23.99%) 312472.4466 ( -2.20%) 316449.1894 ( -0.95%) 317039.2752 ( -0.77%)
Faults/cpu 12 314193.4166 ( 0.00%) 313068.6101 ( -0.36%) 235605.3115 (-25.01%) 309340.3850 ( -1.54%) 313383.0113 ( -0.26%) 317336.9315 ( 1.00%)
Faults/cpu 13 297642.2341 ( 0.00%) 299213.5432 ( 0.53%) 234437.1802 (-21.24%) 293494.9766 ( -1.39%) 299705.3429 ( 0.69%) 300624.5210 ( 1.00%)
Faults/cpu 14 290534.1543 ( 0.00%) 288426.1514 ( -0.73%) 224483.1714 (-22.73%) 285707.6328 ( -1.66%) 290879.5737 ( 0.12%) 289279.0242 ( -0.43%)
Faults/cpu 15 288135.4034 ( 0.00%) 283193.5948 ( -1.72%) 212413.0189 (-26.28%) 280349.0344 ( -2.70%) 284072.2862 ( -1.41%) 287647.8834 ( -0.17%)
Faults/cpu 16 272332.8272 ( 0.00%) 272814.3475 ( 0.18%) 207466.3481 (-23.82%) 270402.6579 ( -0.71%) 271763.7503 ( -0.21%) 274964.5255 ( 0.97%)
Faults/cpu 17 259801.4891 ( 0.00%) 254678.1893 ( -1.97%) 195438.3763 (-24.77%) 258832.2108 ( -0.37%) 260388.8630 ( 0.23%) 260959.0635 ( 0.45%)
Faults/cpu 18 247485.0166 ( 0.00%) 247528.4736 ( 0.02%) 188851.6906 (-23.69%) 246617.6952 ( -0.35%) 246672.7250 ( -0.33%) 248623.7380 ( 0.46%)
Faults/cpu 19 240874.3964 ( 0.00%) 240040.1762 ( -0.35%) 188854.7002 (-21.60%) 241091.5604 ( 0.09%) 235779.1526 ( -2.12%) 240054.8191 ( -0.34%)
Faults/cpu 20 230055.4776 ( 0.00%) 233739.6952 ( 1.60%) 189561.1074 (-17.60%) 232361.9801 ( 1.00%) 235648.3672 ( 2.43%) 235093.1838 ( 2.19%)
Faults/cpu 21 221089.0306 ( 0.00%) 222658.7857 ( 0.71%) 185501.7940 (-16.10%) 221778.3227 ( 0.31%) 220242.8822 ( -0.38%) 222037.5554 ( 0.43%)
Faults/cpu 22 212928.6223 ( 0.00%) 211709.9070 ( -0.57%) 173833.3256 (-18.36%) 210452.7972 ( -1.16%) 214426.3103 ( 0.70%) 214947.4742 ( 0.95%)
Faults/cpu 23 207494.8662 ( 0.00%) 206521.8192 ( -0.47%) 171758.7557 (-17.22%) 205407.2927 ( -1.01%) 206721.0393 ( -0.37%) 207409.9085 ( -0.04%)
Faults/cpu 24 198271.6218 ( 0.00%) 200140.9741 ( 0.94%) 162334.1621 (-18.13%) 201006.4327 ( 1.38%) 201252.9323 ( 1.50%) 200952.4305 ( 1.35%)
Faults/cpu 25 194049.1874 ( 0.00%) 188802.4110 ( -2.70%) 161943.4996 (-16.55%) 191462.4322 ( -1.33%) 191439.2795 ( -1.34%) 192108.4659 ( -1.00%)
Faults/cpu 26 183620.4998 ( 0.00%) 183343.6939 ( -0.15%) 160425.1497 (-12.63%) 182870.8145 ( -0.41%) 184395.3448 ( 0.42%) 186077.3626 ( 1.34%)
Faults/cpu 27 181390.7603 ( 0.00%) 180468.1260 ( -0.51%) 156356.5144 (-13.80%) 181196.8598 ( -0.11%) 181266.5928 ( -0.07%) 180640.5088 ( -0.41%)
Faults/cpu 28 176180.0531 ( 0.00%) 175634.1202 ( -0.31%) 150357.6004 (-14.66%) 177080.1177 ( 0.51%) 177119.5918 ( 0.53%) 176368.0055 ( 0.11%)
Faults/cpu 29 169650.2633 ( 0.00%) 168217.8595 ( -0.84%) 155420.2194 ( -8.39%) 170747.8837 ( 0.65%) 171278.7622 ( 0.96%) 170279.8400 ( 0.37%)
Faults/cpu 30 165035.8356 ( 0.00%) 164500.4660 ( -0.32%) 149498.3808 ( -9.41%) 165260.2440 ( 0.14%) 166184.8081 ( 0.70%) 164413.5702 ( -0.38%)
Faults/cpu 31 159436.3440 ( 0.00%) 160203.2927 ( 0.48%) 139138.4143 (-12.73%) 159857.9330 ( 0.26%) 160602.8294 ( 0.73%) 158802.3951 ( -0.40%)
Faults/cpu 32 155345.7802 ( 0.00%) 155688.0137 ( 0.22%) 136290.5101 (-12.27%) 156028.5649 ( 0.44%) 156660.6132 ( 0.85%) 156110.2021 ( 0.49%)
Faults/cpu 33 150219.6220 ( 0.00%) 150761.8116 ( 0.36%) 135744.4512 ( -9.64%) 151295.3001 ( 0.72%) 152374.5286 ( 1.43%) 149876.4226 ( -0.23%)
Faults/cpu 34 145772.3820 ( 0.00%) 144612.2751 ( -0.80%) 136039.8268 ( -6.68%) 147191.8811 ( 0.97%) 146490.6089 ( 0.49%) 144259.7221 ( -1.04%)
Faults/cpu 35 141844.4600 ( 0.00%) 141708.8606 ( -0.10%) 136089.5490 ( -4.06%) 141913.1720 ( 0.05%) 142196.7473 ( 0.25%) 141281.3582 ( -0.40%)
Faults/cpu 36 137593.5661 ( 0.00%) 138161.2436 ( 0.41%) 128386.3001 ( -6.69%) 138513.0778 ( 0.67%) 138313.7914 ( 0.52%) 136719.5046 ( -0.64%)
Faults/cpu 37 132889.3691 ( 0.00%) 133510.5699 ( 0.47%) 127211.5973 ( -4.27%) 133844.4348 ( 0.72%) 134542.6731 ( 1.24%) 133044.9847 ( 0.12%)
Faults/cpu 38 129464.8808 ( 0.00%) 129309.9659 ( -0.12%) 124991.9760 ( -3.45%) 129698.4299 ( 0.18%) 130383.7440 ( 0.71%) 128545.0900 ( -0.71%)
Faults/cpu 39 125847.2523 ( 0.00%) 126247.6919 ( 0.32%) 125720.8199 ( -0.10%) 125748.5172 ( -0.08%) 126184.8812 ( 0.27%) 126166.4376 ( 0.25%)
Faults/cpu 40 122497.3658 ( 0.00%) 122904.6230 ( 0.33%) 119592.8625 ( -2.37%) 122917.6924 ( 0.34%) 123206.4626 ( 0.58%) 121880.4385 ( -0.50%)
Faults/cpu 41 119450.0397 ( 0.00%) 119031.7169 ( -0.35%) 115547.9382 ( -3.27%) 118794.7652 ( -0.55%) 119418.5855 ( -0.03%) 118715.8560 ( -0.61%)
Faults/cpu 42 116004.5444 ( 0.00%) 115247.2406 ( -0.65%) 115673.3669 ( -0.29%) 115894.3102 ( -0.10%) 115924.0103 ( -0.07%) 115546.2484 ( -0.40%)
Faults/cpu 43 112825.6897 ( 0.00%) 112555.8521 ( -0.24%) 115351.1821 ( 2.24%) 113205.7203 ( 0.34%) 112896.3224 ( 0.06%) 112501.5505 ( -0.29%)
Faults/cpu 44 110221.9798 ( 0.00%) 109799.1269 ( -0.38%) 111690.2165 ( 1.33%) 109460.3398 ( -0.69%) 109736.3227 ( -0.44%) 109822.0646 ( -0.36%)
Faults/cpu 45 107808.1019 ( 0.00%) 106853.8230 ( -0.89%) 111211.9257 ( 3.16%) 106613.8474 ( -1.11%) 106835.5728 ( -0.90%) 107420.9722 ( -0.36%)
Faults/cpu 46 105338.7289 ( 0.00%) 104322.1338 ( -0.97%) 108688.1743 ( 3.18%) 103868.0598 ( -1.40%) 104019.1548 ( -1.25%) 105022.6610 ( -0.30%)
Faults/cpu 47 103330.7670 ( 0.00%) 102023.9900 ( -1.26%) 108331.5085 ( 4.84%) 101681.8182 ( -1.60%) 101245.4175 ( -2.02%) 102871.1021 ( -0.44%)
Faults/cpu 48 101441.4170 ( 0.00%) 99674.9779 ( -1.74%) 108007.0665 ( 6.47%) 99354.5932 ( -2.06%) 99252.9156 ( -2.16%) 100868.6868 ( -0.56%)

Same story on number of faults processed per CPU.

Faults/sec 1 379226.4553 ( 0.00%) 368933.2163 ( -2.71%) 377567.1922 ( -0.44%) 86267.2515 (-77.25%) 86875.1744 (-77.09%) 380376.2873 ( 0.30%)
Faults/sec 2 749973.6389 ( 0.00%) 745368.4598 ( -0.61%) 729046.6001 ( -2.79%) 501399.0067 (-33.14%) 533091.7531 (-28.92%) 748098.5102 ( -0.25%)
Faults/sec 3 1109387.2150 ( 0.00%) 1101815.4855 ( -0.68%) 1067844.4241 ( -3.74%) 922150.6228 (-16.88%) 948926.6753 (-14.46%) 1105559.1712 ( -0.35%)
Faults/sec 4 1466774.3100 ( 0.00%) 1436277.7333 ( -2.08%) 1386595.2563 ( -5.47%) 1352804.9587 ( -7.77%) 1373754.4330 ( -6.34%) 1455926.9804 ( -0.74%)
Faults/sec 5 1734004.1931 ( 0.00%) 1712341.4333 ( -1.25%) 1663159.2063 ( -4.09%) 1636827.0073 ( -5.60%) 1674262.7667 ( -3.45%) 1719713.1856 ( -0.82%)
Faults/sec 6 2005083.6885 ( 0.00%) 1980047.8898 ( -1.25%) 1892759.0575 ( -5.60%) 1978591.3286 ( -1.32%) 1990385.5922 ( -0.73%) 2012957.1946 ( 0.39%)
Faults/sec 7 2323523.7344 ( 0.00%) 2297209.3144 ( -1.13%) 2064475.4665 (-11.15%) 2260510.6371 ( -2.71%) 2278640.0597 ( -1.93%) 2324813.2040 ( 0.06%)
Faults/sec 8 2648167.0893 ( 0.00%) 2624742.9343 ( -0.88%) 2314968.6209 (-12.58%) 2606988.4580 ( -1.55%) 2671599.7800 ( 0.88%) 2673032.1950 ( 0.94%)
Faults/sec 9 2736925.7247 ( 0.00%) 2728207.1722 ( -0.32%) 2491913.1048 ( -8.95%) 2689604.9745 ( -1.73%) 2708047.0077 ( -1.06%) 2760248.2053 ( 0.85%)
Faults/sec 10 3039414.3444 ( 0.00%) 3038105.4345 ( -0.04%) 2492174.2233 (-18.00%) 2947139.9612 ( -3.04%) 2973073.5636 ( -2.18%) 3002803.7061 ( -1.20%)
Faults/sec 11 3321706.1658 ( 0.00%) 3239414.0527 ( -2.48%) 2456634.8702 (-26.04%) 3237117.6282 ( -2.55%) 3260521.6371 ( -1.84%) 3298132.1843 ( -0.71%)
Faults/sec 12 3532409.7672 ( 0.00%) 3534748.1800 ( 0.07%) 2556542.9426 (-27.63%) 3478409.1401 ( -1.53%) 3513285.3467 ( -0.54%) 3587238.4424 ( 1.55%)
Faults/sec 13 3537583.2973 ( 0.00%) 3555979.7240 ( 0.52%) 2643676.1015 (-25.27%) 3498887.6802 ( -1.09%) 3584695.8753 ( 1.33%) 3590044.7697 ( 1.48%)
Faults/sec 14 3746624.1500 ( 0.00%) 3689003.6175 ( -1.54%) 2630758.3449 (-29.78%) 3690864.4632 ( -1.49%) 3751840.8797 ( 0.14%) 3724950.8729 ( -0.58%)
Faults/sec 15 4051109.8741 ( 0.00%) 3953680.3643 ( -2.41%) 2541857.4723 (-37.26%) 3905515.7917 ( -3.59%) 3998526.1306 ( -1.30%) 4049199.2538 ( -0.05%)
Faults/sec 16 4078126.4712 ( 0.00%) 4123441.7643 ( 1.11%) 2549782.7076 (-37.48%) 4067671.7626 ( -0.26%) 4106454.4320 ( 0.69%) 4167569.6242 ( 2.19%)
Faults/sec 17 3946209.5066 ( 0.00%) 3886274.3946 ( -1.52%) 2405328.1767 (-39.05%) 3937304.5223 ( -0.23%) 3920485.2382 ( -0.65%) 3967957.4690 ( 0.55%)
Faults/sec 18 4115112.1063 ( 0.00%) 4079027.7233 ( -0.88%) 2385981.0332 (-42.02%) 4062940.8129 ( -1.27%) 4103770.0811 ( -0.28%) 4121303.7070 ( 0.15%)
Faults/sec 19 4354086.4908 ( 0.00%) 4333268.5610 ( -0.48%) 2501627.6834 (-42.55%) 4284800.1294 ( -1.59%) 4206148.7446 ( -3.40%) 4287512.8517 ( -1.53%)
Faults/sec 20 4263596.5894 ( 0.00%) 4472167.3677 ( 4.89%) 2564140.4929 (-39.86%) 4370659.6359 ( 2.51%) 4479581.9679 ( 5.07%) 4484166.9738 ( 5.17%)
Faults/sec 21 4098972.5089 ( 0.00%) 4151322.9576 ( 1.28%) 2626683.1075 (-35.92%) 4149013.2160 ( 1.22%) 4058372.3890 ( -0.99%) 4143527.1704 ( 1.09%)
Faults/sec 22 4175738.8898 ( 0.00%) 4237648.8102 ( 1.48%) 2388945.8252 (-42.79%) 4137584.2163 ( -0.91%) 4247730.7669 ( 1.72%) 4322814.4495 ( 3.52%)
Faults/sec 23 4373975.8159 ( 0.00%) 4395014.8420 ( 0.48%) 2491320.6893 (-43.04%) 4195839.4189 ( -4.07%) 4289031.3045 ( -1.94%) 4249735.3807 ( -2.84%)
Faults/sec 24 4343903.6909 ( 0.00%) 4539539.0281 ( 4.50%) 2367142.7680 (-45.51%) 4463459.6633 ( 2.75%) 4347883.8816 ( 0.09%) 4361808.4405 ( 0.41%)
Faults/sec 25 4049139.5490 ( 0.00%) 3836819.6187 ( -5.24%) 2452593.4879 (-39.43%) 3756917.3563 ( -7.22%) 3667462.3028 ( -9.43%) 3882470.4622 ( -4.12%)
Faults/sec 26 3923558.8580 ( 0.00%) 3926335.3913 ( 0.07%) 2497179.3566 (-36.35%) 3758947.5820 ( -4.20%) 3810590.6641 ( -2.88%) 3949958.5833 ( 0.67%)
Faults/sec 27 4120929.2726 ( 0.00%) 4111259.5839 ( -0.23%) 2444020.3202 (-40.69%) 3958866.4333 ( -3.93%) 3934181.7350 ( -4.53%) 4038502.1999 ( -2.00%)
Faults/sec 28 4148296.9993 ( 0.00%) 4208740.3644 ( 1.46%) 2508485.6715 (-39.53%) 4084949.7113 ( -1.53%) 4037661.6209 ( -2.67%) 4185738.4607 ( 0.90%)
Faults/sec 29 4124742.2486 ( 0.00%) 4142048.5869 ( 0.42%) 2672716.5715 (-35.20%) 4085761.2234 ( -0.95%) 4068650.8559 ( -1.36%) 4144694.1129 ( 0.48%)
Faults/sec 30 4160740.4979 ( 0.00%) 4236457.4748 ( 1.82%) 2695629.9415 (-35.21%) 4076825.3513 ( -2.02%) 4106802.5562 ( -1.30%) 4084027.7691 ( -1.84%)
Faults/sec 31 4237767.8919 ( 0.00%) 4262954.1215 ( 0.59%) 2622045.7226 (-38.13%) 4147492.6973 ( -2.13%) 4129507.3254 ( -2.55%) 4154591.8086 ( -1.96%)
Faults/sec 32 4193896.3492 ( 0.00%) 4313804.9370 ( 2.86%) 2486013.3793 (-40.72%) 4144234.0287 ( -1.18%) 4167653.2985 ( -0.63%) 4280308.2714 ( 2.06%)
Faults/sec 33 4162942.9767 ( 0.00%) 4324720.6943 ( 3.89%) 2705706.6138 (-35.00%) 4148215.3556 ( -0.35%) 4160800.6591 ( -0.05%) 4188855.2428 ( 0.62%)
Faults/sec 34 4204133.3523 ( 0.00%) 4246486.4313 ( 1.01%) 2801163.4164 (-33.37%) 4115498.6406 ( -2.11%) 4050464.9098 ( -3.66%) 4092430.9384 ( -2.66%)
Faults/sec 35 4189096.5835 ( 0.00%) 4271877.3268 ( 1.98%) 2763406.1657 (-34.03%) 4112864.6044 ( -1.82%) 4116065.7955 ( -1.74%) 4219699.5756 ( 0.73%)
Faults/sec 36 4277421.2521 ( 0.00%) 4373426.4356 ( 2.24%) 2692221.4270 (-37.06%) 4129438.5970 ( -3.46%) 4108075.3296 ( -3.96%) 4149259.8944 ( -3.00%)
Faults/sec 37 4168551.9047 ( 0.00%) 4319223.3874 ( 3.61%) 2836764.2086 (-31.95%) 4109725.0377 ( -1.41%) 4156874.2769 ( -0.28%) 4149515.4613 ( -0.46%)
Faults/sec 38 4247525.5670 ( 0.00%) 4229905.6978 ( -0.41%) 2938912.4587 (-30.81%) 4085058.1995 ( -3.82%) 4127366.4416 ( -2.83%) 4096271.9211 ( -3.56%)
Faults/sec 39 4190989.8515 ( 0.00%) 4329385.1325 ( 3.30%) 3061436.0988 (-26.95%) 4099026.7324 ( -2.19%) 4094648.2005 ( -2.30%) 4240087.0764 ( 1.17%)
Faults/sec 40 4238307.5210 ( 0.00%) 4337475.3368 ( 2.34%) 2988097.1336 (-29.50%) 4203501.6812 ( -0.82%) 4120604.7912 ( -2.78%) 4193144.8164 ( -1.07%)
Faults/sec 41 4317393.3854 ( 0.00%) 4282458.5094 ( -0.81%) 2949899.0149 (-31.67%) 4120836.6477 ( -4.55%) 4248620.8455 ( -1.59%) 4206700.7050 ( -2.56%)
Faults/sec 42 4299075.7581 ( 0.00%) 4181602.0005 ( -2.73%) 3037710.0530 (-29.34%) 4205958.7415 ( -2.17%) 4181449.1786 ( -2.74%) 4155578.2275 ( -3.34%)
Faults/sec 43 4234922.1492 ( 0.00%) 4301130.5970 ( 1.56%) 2996342.1505 (-29.25%) 4170975.0653 ( -1.51%) 4210039.9002 ( -0.59%) 4203158.8656 ( -0.75%)
Faults/sec 44 4270913.7498 ( 0.00%) 4376035.4745 ( 2.46%) 3054249.1521 (-28.49%) 4193693.1721 ( -1.81%) 4154034.6390 ( -2.74%) 4207031.5562 ( -1.50%)
Faults/sec 45 4313055.5348 ( 0.00%) 4342993.1271 ( 0.69%) 3263986.2960 (-24.32%) 4172891.7566 ( -3.25%) 4262028.6193 ( -1.18%) 4293905.9657 ( -0.44%)
Faults/sec 46 4323716.1160 ( 0.00%) 4306994.5183 ( -0.39%) 3198502.0716 (-26.02%) 4212553.2514 ( -2.57%) 4216000.7652 ( -2.49%) 4277511.4815 ( -1.07%)
Faults/sec 47 4364354.4986 ( 0.00%) 4290609.7996 ( -1.69%) 3274654.5504 (-24.97%) 4185908.2435 ( -4.09%) 4235166.8662 ( -2.96%) 4267607.2786 ( -2.22%)
Faults/sec 48 4280234.1143 ( 0.00%) 4312820.1724 ( 0.76%) 3168212.5669 (-25.98%) 4272168.2365 ( -0.19%) 4235504.6092 ( -1.05%) 4322535.9118 ( 0.99%)

More or less the same story.

MMTests Statistics: duration
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
User 1076.65 935.93 1276.09 1089.84 1134.60 1097.18
System 18726.05 18738.26 22038.05 19395.18 19281.62 18688.61
Elapsed 1353.67 1346.72 1798.95 2022.47 2010.67 1355.63

autonumas system CPU usage overhead is obvious here. balancenuma and
numacore are ok although it's interesting to note that balancenuma required
the delaystart logic to keep the usage down here.

MMTests Statistics: vmstat
3.7.0 3.7.0 3.7.0 3.7.0 3.7.0 3.7.0
rc6-stats-v5r1rc6-numacore-20121123rc6-autonuma-v28fastr4rc6-thpmigrate-v5r1rc6-adaptscan-v5r1rc6-delaystart-v5r4
Page Ins 680 536 536 540 540 540
Page Outs 16004 15496 19048 19052 19888 15892
Swap Ins 0 0 0 0 0 0
Swap Outs 0 0 0 0 0 0
Direct pages scanned 0 0 0 0 0 0
Kswapd pages scanned 0 0 0 0 0 0
Kswapd pages reclaimed 0 0 0 0 0 0
Direct pages reclaimed 0 0 0 0 0 0
Kswapd efficiency 100% 100% 100% 100% 100% 100%
Kswapd velocity 0.000 0.000 0.000 0.000 0.000 0.000
Direct efficiency 100% 100% 100% 100% 100% 100%
Direct velocity 0.000 0.000 0.000 0.000 0.000 0.000
Percentage direct scans 0% 0% 0% 0% 0% 0%
Page writes by reclaim 0 0 0 0 0 0
Page writes file 0 0 0 0 0 0
Page writes anon 0 0 0 0 0 0
Page reclaim immediate 0 0 0 0 0 0
Page rescued immediate 0 0 0 0 0 0
Slabs scanned 0 0 0 0 0 0
Direct inode steals 0 0 0 0 0 0
Kswapd inode steals 0 0 0 0 0 0
Kswapd skipped wait 0 0 0 0 0 0
THP fault alloc 0 0 0 0 0 0
THP collapse alloc 0 0 0 0 0 0
THP splits 0 0 0 1 0 0
THP fault fallback 0 0 0 0 0 0
THP collapse fail 0 0 0 0 0 0
Compaction stalls 0 0 0 0 0 0
Compaction success 0 0 0 0 0 0
Compaction failures 0 0 0 0 0 0
Page migrate success 0 0 0 1093 986 613
Page migrate failure 0 0 0 0 0 0
Compaction pages isolated 0 0 0 0 0 0
Compaction migrate scanned 0 0 0 0 0 0
Compaction free scanned 0 0 0 0 0 0
Compaction cost 0 0 0 1 1 0
NUMA PTE updates 0 0 0 505196235 493301672 515709
NUMA hint faults 0 0 0 2549799 2482875 105795
NUMA hint local faults 0 0 0 2545441 2480546 102428
NUMA pages migrated 0 0 0 1093 986 613
AutoNUMA cost 0 0 0 16285 15867 532

There you have it. Some good results, some great, some bad results, some
disastrous. Of course this is for only one machine and other machines
might report differently. I've outlined what other factors could impact the
results and will re-run tests if there is a complaint about one of them.

I'll keep my overall comments to balancenuma. I think it did pretty well
overall. It generally was an improvement on the baseline kernel and in only
one case did it heavily regress (specjbb, single JVM, no THP). Here it hit
its worst-case scenario of always dealing with PTE faults, almost always
migrating and not reducing the scan rate. I could try be clever about this,
I could ignore it or I could hit it with a hammer. I have a hammer.

Other comments?

--
Mel Gorman
SUSE Labs


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