Messages in this thread | | | From | "Paolo Ciarrocchi" <> | Date | Sun, 25 Aug 2002 20:33:34 +0800 | Subject | Re: Combined performance patches update for 2.4.19 |
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From: Rik van Riel <riel@conectiva.com.br>
[...] > > Maybe I can find the time to run a few tests, can anyone suggest me an > > "intersting" test? > > Bob Matthews has a benchmark called irman, which tries to measure > response time during a number of background loads. > > I'm not sure it is too interesting in this case, though. People > don't really care about the exact latency of sub-millisecond > responses (should be the vast majority) but about the few times > per minute where their mp3 skips. > > Simple averages won't show the mp3 skips, because the number of > fast responses are bound to be hundreds of thousands of times > more common then the "mp3 skipping hickups". > > Maybe the histogram mode of irman might show something useful ? > > (then again, maybe it doesn't ... haven't tried yet) > > http://people.redhat.com/bmatthews/irman/ Well... I tried irman, and here it goes the results:
Test: NULL Kernel max min avg stddev 2.4.18 45.955 0.004 0.005 0.061 2.4.18-0.24pre3 0.121 0.005 0.005 0.001 2.4.19 1.683 0.005 0.005 0.002 2.4.19-ck3 1.694 0.005 0.005 0.002 2.4.19-ck3-aa 0.200 0.005 0.005 0.001 2.4.19-ck3-rmap 1.628 0.005 0.005 0.002 2.5.31 1.636 0.006 0.007 0.002
Test: MEMORY Kernel max min avg stddev 2.4.18 69.471 0.005 0.010 0.554 2.4.18-0.24pre3 70.031 0.005 0.010 0.546 2.4.19 60.058 0.005 0.011 0.558 2.4.19-ck3 150.216 0.005 0.009 0.720 2.4.19-ck3-aa 150.075 0.005 0.008 0.621 2.4.19-ck3-rmap 150.059 0.005 0.009 0.674 2.5.31 1.823 0.005 0.007 0.002
Test: FILE_IO Kernel max min avg stddev 2.4.18 190.042 0.005 0.019 1.452 2.4.18-0.24pre3 325.509 0.005 0.017 1.379 2.4.19 190.033 0.005 0.022 1.525 2.4.19-ck3 1050.048 0.005 0.015 2.196 2.4.19-ck3-aa 1363.153 0.005 0.014 2.177 2.4.19-ck3-rmap 450.073 0.005 0.016 2.097 2.5.31 610.021 0.006 0.019 2.314
Test: PROCESS Kernel max min avg stddev 2.4.18 350.056 0.005 0.068 2.548 2.4.18-0.24pre3 270.138 0.005 0.068 2.439 2.4.19 270.238 0.005 0.075 2.594 2.4.19-ck3 1710.017 0.005 0.022 4.293 2.4.19-ck3-aa 1620.023 0.005 0.023 4.298 2.4.19-ck3-rmap 1630.020 0.005 0.025 4.724 2.5.31 1171.021 0.006 0.026 4.354
Ciao, Paolo -- Get your free email from www.linuxmail.org
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