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Subject[BENCHMARK] 2.5.65 with contest
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Here are contest (http://contest.kolivas.org) benchmarks using the osdl
hardware (http://www.osdl.org) up to and including 2.5.65.

no_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 79 93.7 0.0 0.0 1.00
2.5.60 2 79 94.9 0.0 0.0 1.00
2.5.61 1 79 94.9 0.0 0.0 1.00
2.5.62 3 79 94.9 0.0 0.0 1.00
2.5.63 4 79 94.9 0.0 0.0 1.00
2.5.64 3 79 94.9 0.0 0.0 1.00
2.5.65 3 80 95.0 0.0 0.0 1.00
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 76 97.4 0.0 0.0 0.96
2.5.60 2 75 98.7 0.0 0.0 0.95
2.5.61 1 76 97.4 0.0 0.0 0.96
2.5.62 3 76 97.4 0.0 0.0 0.96
2.5.63 4 76 97.4 0.0 0.0 0.96
2.5.64 3 75 98.7 0.0 0.0 0.95
2.5.65 3 76 98.7 0.0 0.0 0.95
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 92 81.5 29.7 17.4 1.16
2.5.60 2 93 80.6 30.5 17.2 1.18
2.5.61 1 93 80.6 29.0 16.1 1.18
2.5.62 3 92 81.5 30.0 16.3 1.16
2.5.63 4 92 81.5 28.2 15.2 1.16
2.5.64 3 92 81.5 30.0 16.3 1.16
2.5.65 3 243 30.5 317.0 68.3 3.04
This is fair enough given process load is four processes and the kernel
compile is up to four (-j4)

ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 98 80.6 2.0 5.1 1.24
2.5.60 2 99 78.8 1.0 4.0 1.25
2.5.61 2 100 79.0 1.0 4.0 1.27
2.5.62 3 99 79.8 1.0 4.0 1.25
2.5.63 3 99 79.8 1.0 4.0 1.25
2.5.64 3 100 79.0 0.0 0.0 1.27
2.5.65 3 108 72.2 0.0 0.0 1.35
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.4.20 1 130 59.2 2.0 4.6 1.67
2.5.59 3 102 74.5 1.0 3.9 1.29
2.5.60 2 101 76.2 1.0 5.0 1.28
2.5.61 2 102 75.5 1.0 4.9 1.29
2.5.62 3 103 73.8 1.0 3.9 1.30
2.5.63 3 102 74.5 1.0 3.9 1.29
2.5.64 3 103 73.8 1.0 3.9 1.30
2.5.65 3 106 71.7 1.0 3.8 1.32
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 152 50.0 34.1 13.1 1.92
2.5.60 2 139 54.7 29.0 12.1 1.76
2.5.61 2 143 52.4 32.9 13.3 1.81
2.5.62 2 205 36.6 51.7 15.0 2.59
2.5.63 5 217 35.0 56.7 15.1 2.75
2.5.64 3 229 33.2 58.8 14.8 2.90
2.5.65 3 411 19.0 137.5 20.4 5.14
More unused cpu time for the first time in a lot of kernels. Lots of work done
by io load in that time though.

io_other:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 89 84.3 11.2 5.6 1.13
2.5.60 2 90 83.3 10.8 5.5 1.14
2.5.61 2 91 82.4 11.1 5.5 1.15
2.5.62 2 96 78.1 15.7 8.2 1.22
2.5.63 4 95 78.9 15.3 8.3 1.20
2.5.64 3 100 75.0 18.4 9.0 1.27
2.5.65 3 164 47.6 71.7 26.2 2.05
Similar here but with not as great a rise in unused cpu time.

read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 101 77.2 6.5 5.0 1.28
2.5.60 2 103 74.8 6.2 6.8 1.30
2.5.61 2 102 77.5 6.3 4.9 1.29
2.5.62 2 103 75.7 6.2 4.9 1.30
2.5.63 3 106 74.5 5.7 4.7 1.34
2.5.64 3 103 76.7 6.2 4.9 1.30
2.5.65 3 107 72.9 6.3 4.7 1.34
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 95 80.0 0.0 6.3 1.20
2.5.60 2 95 80.0 0.0 6.3 1.20
2.5.61 2 95 81.1 0.0 6.3 1.20
2.5.62 2 95 80.0 0.0 6.3 1.20
2.5.63 3 96 79.2 0.0 6.2 1.22
2.5.64 3 96 79.2 0.0 6.2 1.22
2.5.65 3 98 78.6 0.0 7.1 1.23
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 95 82.1 52.7 2.1 1.20
2.5.60 2 98 79.6 53.0 2.0 1.24
2.5.61 1 96 81.2 54.0 2.1 1.22
2.5.62 2 101 78.2 59.0 2.0 1.28
2.5.63 3 104 75.0 57.7 1.9 1.32
2.5.64 3 105 74.3 58.3 1.9 1.33
2.5.65 3 112 70.5 67.3 2.7 1.40
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.59 3 214 36.4 2.3 40.7 2.71
2.5.61 2 237 32.5 3.0 47.3 3.00
2.5.62 2 226 34.1 2.5 42.0 2.86
2.5.63 4 194 39.2 2.0 38.7 2.46
2.5.64 3 222 34.2 2.3 38.7 2.81
2.5.65 3 542 14.2 9.0 62.5 6.78
This one is interesting. More work done, more balance given to dbench, but no
more wasted cpu time. A pure balance change without wasted cycles. Since
dbench load is 16 processes this seems appropriate.

Massive changes all over the map. The scheduler tweaks have changed most of
the balance. I don't think contest is capable of showing the advantage of the
new tweaks designed to minimise things like audio stuttering. Perhaps Bill
Davidsen's trivial response benchmark is more suited.

Con
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