Messages in this thread | | | From | Con Kolivas <> | Subject | [BENCHMARK] 2.5.42-mm2 contest results | Date | Sun, 13 Oct 2002 21:27:47 +1000 |
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Here are the surprisingly different results from 2.5.42-mm2 with the contest benchmark (http://contest.kolivas.net). This was run with pagetable sharing enabled. Older results hidden for clarity.
noload: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 74.4 93 0 0 1.11 2.5.42 [2] 72.5 93 0 0 1.08 2.5.42-mm2 [3] 79.0 92 0 0 1.18
Didn't believe it the first time so I ran it twice more and ran 2.5.42 again to make sure something didn't change on my machine, but definitely this was slower than 2.5.42. When the kernel compile starts on the flushed ram machine with no background load a lot more disk activity seems to occur for the first five or so seconds compared to other kernels. I'm not sure if this is related to the way the memory and swap is flushed prior to the test or just this kernel. This may have affected all the following results too.
process_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 95.5 75 31 28 1.42 2.5.42 [1] 98.0 69 44 33 1.46 2.5.42-mm2 [2] 104.5 72 31 30 1.56
Slower again, without an increase in the loads.
ctar_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 92.1 81 1 5 1.37 2.5.42 [1] 96.7 80 1 7 1.44 2.5.42-mm2 [2] 102.3 79 1 6 1.52
Slower; lack resolution of number of loads makes it difficult to determine if it's significant. Same with a few of the other loads below.
xtar_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 215.9 34 3 7 3.21 2.5.42 [1] 112.7 66 1 7 1.68 2.5.42-mm2 [2] 195.0 41 2 6 2.90
Close to 2.5.41-mm3. Not enough runs to show if it is significant
io_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 312.4 25 20 11 4.65 2.5.42 [1] 849.1 9 69 12 12.64 2.5.42-mm2 [2] 250.7 34 15 10 3.73
This is showing an improvement with some of the better io load results shown by a 2.5 kernel.
read_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 102.0 74 6 4 1.52 2.5.42 [1] 102.0 75 8 5 1.52 2.5.42-mm2 [2] 109.0 75 7 4 1.62
list_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [1] 95.9 74 1 22 1.43 2.5.42 [1] 97.5 71 1 20 1.45 2.5.42-mm2 [2] 105.3 72 1 24 1.57
mem_load: Kernel [runs] Time CPU% Loads LCPU% Ratio 2.5.41-mm3 [2] 107.1 68 27 2 1.59 2.5.42 [1] 104.0 72 30 3 1.55 2.5.42-mm2 [2] 121.2 65 30 2 1.80
Con -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux)
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