From: Al Boldi <a1426z@gawab.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2
Date: Mon, 12 Mar 2007 22:53:33 +0300 [thread overview]
Message-ID: <200703122253.33866.a1426z@gawab.com> (raw)
Xavier Bestel wrote:
> Le mardi 13 mars 2007 à 05:49 +1100, Con Kolivas a écrit :
> > Again I think your test is not a valid testcase. Why use two threads for
> > your encoding with one cpu? Is that what other dedicated desktop OSs
> > would do?
>
> as your scheduler
> is "strictly fair", won't that enable trivial DoS by just letting an
> user fork a multitude of CPU-intensive processes ?
I don't think we have to worry about DoS with this scheduler.
Note the load average; it happily wraps.
top - 22:34:02 up 8 min, 0 users, load average: 615.32, 746.30, 929.15
Tasks: 3379 total, 3336 running, 43 sleeping, 0 stopped, 0 zombie
Cpu(s): 8.8% user, 21.1% system, 10.0% nice, 56.5% idle, 3.6% IO-wait
Mem: 499480k total, 414640k used, 84840k free, 1956k buffers
Swap: 1020088k total, 0k used, 1020088k free, 8296k cached
PID PR NI VIRT RES SHR SWAP nFLT nDRT WCHAN S %CPU TIME+ Command
614 39 0 3668 2712 720 956 5 0 rest_init R 1.9 0:09.70 top
845 23 0 3056 1780 932 1276 0 0 wait S 0.0 0:01.96 sh
1 20 0 1440 504 444 936 14 0 rest_init S 0.0 0:00.76 init
4180 28 0 3664 2640 652 1024 0 0 rest_init R 3.5 0:00.40 top
863 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.30 ping
929 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.29 ping
871 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.28 ping
904 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.28 ping
946 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.28 ping
947 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.28 ping
972 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.28 ping
862 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
881 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
901 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
915 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
923 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
926 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
958 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
967 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
987 39 19 1584 488 412 1096 0 0 rest_init R 0.0 0:00.27 ping
994 39 19 1584 488 412 1096 0 0 rest_init R 0.2 0:00.27 ping
Thanks!
--
Al
next reply other threads:[~2007-03-12 19:50 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-12 19:53 Al Boldi [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-03-11 3:57 Con Kolivas
2007-03-11 11:39 ` Mike Galbraith
2007-03-11 11:48 ` Con Kolivas
2007-03-11 12:08 ` Mike Galbraith
2007-03-11 12:10 ` Ingo Molnar
2007-03-11 12:20 ` Mike Galbraith
2007-03-11 21:18 ` Mike Galbraith
2007-03-12 7:22 ` Mike Galbraith
2007-03-12 7:48 ` Con Kolivas
2007-03-12 8:29 ` Con Kolivas
2007-03-12 8:55 ` Mike Galbraith
2007-03-12 9:22 ` Con Kolivas
2007-03-12 9:38 ` Mike Galbraith
2007-03-12 10:27 ` Con Kolivas
2007-03-12 10:57 ` Mike Galbraith
2007-03-12 11:08 ` Ingo Molnar
2007-03-12 11:23 ` Con Kolivas
2007-03-12 13:48 ` Theodore Tso
2007-03-12 18:09 ` Con Kolivas
2007-03-12 14:34 ` Mike Galbraith
2007-03-12 15:26 ` Linus Torvalds
2007-03-12 18:10 ` Con Kolivas
2007-03-12 19:36 ` Peter Zijlstra
2007-03-12 20:36 ` Mike Galbraith
2007-03-13 4:17 ` Kyle Moffett
2007-03-13 8:09 ` Ingo Molnar
2007-03-12 18:49 ` Con Kolivas
2007-03-12 19:06 ` Xavier Bestel
2007-03-13 17:21 ` Valdis.Kletnieks
2007-03-12 20:11 ` Mike Galbraith
2007-03-12 20:38 ` Con Kolivas
2007-03-12 20:45 ` Mike Galbraith
2007-03-12 22:51 ` Con Kolivas
2007-03-13 5:10 ` Mike Galbraith
2007-03-13 5:53 ` Con Kolivas
2007-03-13 6:17 ` Mike Galbraith
2007-03-13 7:53 ` Mike Galbraith
2007-03-13 8:22 ` Ingo Molnar
2007-03-13 8:18 ` Ingo Molnar
2007-03-13 8:22 ` Mike Galbraith
2007-03-13 9:21 ` Con Kolivas
2007-03-13 9:29 ` Ingo Molnar
2007-03-13 9:41 ` Con Kolivas
2007-03-13 10:50 ` Bill Huey
2007-03-13 9:33 ` Mike Galbraith
2007-03-13 9:39 ` Ingo Molnar
2007-03-13 10:06 ` Con Kolivas
2007-03-13 11:23 ` Mike Galbraith
2007-03-13 11:41 ` Serge Belyshev
2007-03-13 11:46 ` Mike Galbraith
2007-03-13 15:36 ` John Stoffel
2007-03-13 14:17 ` Matt Mackall
2007-03-13 15:15 ` David Schwartz
2007-03-13 17:59 ` Jeremy Fitzhardinge
2007-03-13 19:58 ` David Schwartz
2007-03-13 20:10 ` Jeremy Fitzhardinge
2007-03-13 20:35 ` Bill Huey
2007-03-13 20:27 ` Bill Huey
2007-03-16 16:42 ` Pavel Machek
2007-03-12 23:43 ` David Lang
2007-03-13 2:23 ` Lee Revell
2007-03-13 6:00 ` David Lang
2007-03-12 20:42 ` Peter Zijlstra
2007-03-12 21:05 ` Serge Belyshev
2007-03-12 21:41 ` Mike Galbraith
2007-03-12 11:25 ` Mike Galbraith
2007-03-12 9:38 ` Xavier Bestel
2007-03-12 10:34 ` Con Kolivas
2007-03-12 16:38 ` Kasper Sandberg
2007-03-14 2:25 ` Valdis.Kletnieks
2007-03-14 3:25 ` Gabriel C
2007-03-14 9:44 ` Xavier Bestel
2007-03-12 8:44 ` Mike Galbraith
2007-03-11 14:32 ` Gene Heskett
2007-03-12 6:58 ` Radoslaw Szkodzinski
2007-03-12 11:16 ` Gene Heskett
2007-03-12 11:49 ` Gene Heskett
2007-03-12 11:58 ` Con Kolivas
2007-03-12 16:38 ` Gene Heskett
2007-03-12 18:34 ` Gene Heskett
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