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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
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This archive was generated by hypermail 2b29 : Tue Oct 15 2002 - 22:00:46 EST