On approximately Thu, Oct 18, 2001 at 09:06:46AM -0600, Andreas Dilger wrote:
> On Oct 18, 2001 01:51 -0500, Josh McKinney wrote:
> > This is a report of the mtest01 scripts posted by rwhron@earthlink.net
> > a day orso ago.
> >
> > The numbers are rather interesting. While the latency of the ac kernels is
> > definitely better, the song only dropped out for a second or two in the
> > begining but that was it. The aa kernel drops out more frequently throughout
> > the test, but the amount of memory allocated is almost twice as much as with
> > the ac kernels.
>
> -ac kernel:
> > Averages for 10 mtest01 runs
> > bytes allocated: 134427443.2
> > User time (seconds): 2.546
> > System time (seconds): 1.370
> > Elapsed (wall clock) time: 4.798
> > Percent of CPU this job got: 89.1%
> > Major (requiring I/O) page faults: 103.8
> > Minor (reclaiming a frame) faults: 32702
>
> -ac kernel + Rik's patches:
> > Averages for 10 mtest01 runs
> > bytes allocated: 124885401.6
> > User time (seconds): 2.380
> > System time (seconds): 1.253
> > Elapsed (wall clock) time: 4.401
> > Percent of CPU this job got: 89.1%
> > Major (requiring I/O) page faults: 100.2
> > Minor (reclaiming a frame) faults: 30363.3
>
> Linus kernel:
> > Averages for 10 mtest01 runs
> > bytes allocated: 288148684.8
> > User time (seconds): 5.496
> > System time (seconds): 3.003
> > Elapsed (wall clock) time: 12.250
> > Percent of CPU this job got: 68.9%
> > Major (requiring I/O) page faults: 103.5
> > Minor (reclaiming a frame) faults: 70380.6
>
> Note that the Linus kernel has allocated twice as much memory. What does that
> mean exactly? The user/system/wall time is also twice as high. Somehow I
> don't think you are having an equal test.
>
> Cheers, Andreas
I thought that was strange myself, which is why I metioned it in the begining.
Also when I seen the results I reran the tests, all in single user mode,
freshreboot, put linux single on the CL, voila, sh mtest01.sh & mpg123 some.mp3,
and there is my test. I know the numbers are crazy and I also know the
importance of having all other variables the same.
Josh
-- Linux, the choice | Animals can be driven crazy by putting too of a GNU generation -o) | many in too small a pen. Homo sapiens is Kernel 2.4.13-pre3 /\ | the only animal that voluntarily does this on a i586 _\_v | to himself. -- Lazarus Long | - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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