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SubjectRe: Benchmarks for performance patches (-ck) for 2.4.19
Quoting Dieter Nützel <>:

> I have your ck5_2.4.19.patch with some additional stuff running fine on my
> dual Athlon MP 1900+, MSI K7D Master-L, 1 GB DDR-SDRAM 266 CL.

Great to hear. I'd be impressed if you noticed *any* change in responsiveness
with anything on that machine.

> ck5 + some 2.4.19-jam0 stuff (Andrea, Ingo, others)
> 000_e100-2.1.6 (-AA)
> 000_e1000-4.3.2 (-AA)
> 00_387-fix-1
> 10-module-size-checks
> 12-memparam
> 24-config-nr_cpus
> 30-smptimers-A0
> 30_irq-balance-12
> 31-nr_requests
> 70-i2c-2.6.4
> 71-sensors-2.6.4
> 2.4.19.pending ReiserFS stuff
> linux-2.4.19-ntfs-2.1.0a.patch
> page_color-2.4.19-pre10-1 (Page coloring)
> I'm from Robert Love's "side" and have his stuff running on top of 2.4 for
> nearly one year, now.
> The first bench I try is latencytest-0.42-png all the time.

That's a very nice test, but as you've seen, pure latency is not everything. If
you want just that you should try my ck5-ll patch which gives the lowest
latencies (check my website for the benchmarks on -ck4 which used this -ll branch).

> Then I try dbench (Yes, I know Rik ;-) to see the GREAT speed of Andrea
> Arcangeli's -AA VM which improve noticeably with the Preemption patch.
> O(1) gave some additional speed, too.

Yes, dbench is included in the many tests available at the the Open Source
Development Lab ( along with many others.

> What about Robert's nice Preemption Latency Measurement Tool?

Once again a pure latency measure, no?

> I tried it many times to gave Robert some feedback.
> Regards and good work!

Thanks, glad you enjoy it, but it's really the combined efforts of the real
developers as you know.

Thanks for your feedback
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