Re: [ck] Re: 2.6.20-ck1

Rodney Gordon II
2007-02-18T06:27:40Z

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On Sun, 2007-02-18 at 13:38 +1100, Con Kolivas wrote:
> mdew . writes:
>
> > On 2/16/07, Con Kolivas <kernel@kolivas.org> wrote:
> >> This patchset is designed to improve system responsiveness and interactivity.
> >> It is configurable to any workload but the default -ck patch is aimed at the
> >> desktop and -cks is available with more emphasis on serverspace.
> >>
> >> Apply to 2.6.20
> >
> > any benchmarks for 2.6.20-ck vs 2.6.20?
>
> Would some -ck user on the mailing list like to perform a set of interbench
> benchmarks? They're pretty straight forward to do; see:
>
> http://interbench.kolivas.org
>
> --
> -ck

Here are some benches comparing 2.6.18-4-686 (Debian sid stock) and
2.6.20-ck1-mt1 (2.6.20-ck1 + sched-idleprio-1.11-2.0.patch)

I know it's not what was asked for, but it might be useful for review of
anyone using Debian kernels considering ck patches :)

Take a look.

-r
--
Rodney "meff" Gordon II -*- meff@pobox.com
Systems Administrator / Coder Geek -*- Open yourself to OpenSource

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Using 1816966 loops per ms, running every load for 30 seconds
Benchmarking kernel 2.6.18-4-686 at datestamp 200702172244

--- Benchmarking simulated cpu of Audio in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.005 +/- 0.00545 0.008 100 100
Video 0.086 +/- 0.661 6.7 100 100
X 0.03 +/- 0.272 5.32 100 100
Burn 0.005 +/- 0.00565 0.01 100 100
Write 0.043 +/- 0.281 5.28 100 100
Read 0.01 +/- 0.0293 0.537 100 100
Compile 0.013 +/- 0.119 2.91 100 100
Memload 0.033 +/- 0.289 6.2 100 100

--- Benchmarking simulated cpu of Video in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.024 +/- 0.556 16.7 100 99.9
X 0.874 +/- 3.78 16.7 100 94.9
Burn 0.005 +/- 0.00559 0.008 100 100
Write 0.128 +/- 1.36 24.6 100 99.6
Read 0.524 +/- 2.93 16.7 100 96.9
Compile 0.136 +/- 1.43 17.3 100 99.3
Memload 0.751 +/- 3.48 17.3 100 95.7

--- Benchmarking simulated cpu of X in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.293 +/- 1.34 10 92.3 89.2
Video 0.606 +/- 2.32 18 89.8 84.6
Burn 0.526 +/- 1.93 10 90.6 85.1
Write 1.35 +/- 7.79 92 87.4 84
Read 2.3 +/- 7.4 44 78.8 72
Compile 2.09 +/- 7.75 72 78.5 72.9
Memload 0.767 +/- 2.82 24 87.5 82.2

--- Benchmarking simulated cpu of Gaming in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU
None 2.64 +/- 9.31 50.6 97.4
Video 0.063 +/- 0.297 5.07 99.9
X 0.061 +/- 0.377 6.48 99.9
Burn 183 +/- 194 400 35.3
Write 1.32 +/- 6.21 80.9 98.7
Read 4.98 +/- 7 34.5 95.3
Compile 210 +/- 228 449 32.3
Memload 4.57 +/- 11.2 83 95.6

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Using 1816966 loops per ms, running every load for 30 seconds
Benchmarking kernel 2.6.20-ck1-mt1 at datestamp 200702172307

--- Benchmarking simulated cpu of Audio in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.005 +/- 0.00517 0.009 100 100
Video 0.016 +/- 0.017 0.022 100 100
X 0.018 +/- 0.13 3.17 100 100
Burn 0.005 +/- 0.00551 0.013 100 100
Write 0.016 +/- 0.0489 1.07 100 100
Read 0.016 +/- 0.102 2.48 100 100
Compile 0.051 +/- 0.421 7 100 100
Memload 0.012 +/- 0.08 1.55 100 100

--- Benchmarking simulated cpu of Video in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.088 +/- 1.18 16.7 100 99.5
X 0.014 +/- 0.0153 0.026 100 100
Burn 0.005 +/- 0.00553 0.016 100 100
Write 0.057 +/- 0.734 16.7 100 99.8
Read 0.016 +/- 0.0187 0.21 100 100
Compile 0.042 +/- 0.328 5.59 100 100
Memload 0.014 +/- 0.0883 1.93 100 100

--- Benchmarking simulated cpu of X in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
None 0.033 +/- 0.258 2 98.7 97.7
Video 0.033 +/- 0.258 2 98.7 97.7
Burn 0.046 +/- 0.337 3 98.4 97
Write 0.129 +/- 0.777 7 96.5 94.4
Read 0.292 +/- 1.75 18 94.4 91.6
Compile 0.473 +/- 2.66 28 92 89
Memload 0.178 +/- 0.98 8 96.8 93.8

--- Benchmarking simulated cpu of Gaming in the presence of simulated ---
Load Latency +/- SD (ms) Max Latency % Desired CPU
None 0.124 +/- 0.126 0.369 99.9
Video 0.439 +/- 0.44 0.459 99.6
X 0.444 +/- 0.469 2.98 99.6
Burn 198 +/- 236 280 33.6
Write 0.509 +/- 0.752 7.59 99.5
Read 2.02 +/- 4.93 31.8 98
Compile 201 +/- 239 299 33.2
Memload 3.39 +/- 5.18 31.3 96.7