Re: [patch] O(1) scheduler, -H6

Dieter =?ISO-8859-15?q?N=FCtzel?= (Dieter.Nuetzel@hamburg.de)
Fri, 11 Jan 2002 18:30:27 +0100


Ingo,

you are the man!
My 1 GHz Athlon II, 640 MB, is up and running with 2.4.17-O(1)-H6.
Writing this under KDE-2.2.2 (KMail) during
time nice +19 make -j40 modules
Max load was: 41,97

Great!

dbench 32 during artsd (noatun, KDE-2.2.2) playing Ogg-Vorbis
"show" hiccup when

artsd (two sub processes) are in
wait_on_p
rt_sigsus

and/or

dbench procs are in
get_reque
wait_on_b
do_journ (ReiserFS?)

Even when I renice both artsd procs I get hiccup.
PID USER PRI NI PAGEIN SIZE RSS SHARE WCHAN STAT %CPU %MEM
TIME COMMAND
4953 nuetzel 1 -19 0 7148 7148 4324 rt_sigsus S < 3.6 1.1
0:04 artsd
1048 nuetzel 1 -19 1280 7148 7148 4324 schedule_ S < 2.7 1.1
0:24 artsd

But when I put the Ogg-Vorbis file into /dev/shm I get _NO_ hiccup anymore!!!
So it is only disk IO limited with your O(1)-H6.

Wow, that is fantastic!!!
Never had that before.
Writing during both...;-)

Redid it without renice (-19):
some very few short hiccup.

-Dieter

-- 
Dieter Nützel
Graduate Student, Computer Science

University of Hamburg Department of Computer Science @home: Dieter.Nuetzel@hamburg.de - 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/