From: Con Kolivas <kernel@kolivas.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Arjan van de Ven <arjanv@redhat.com>
Subject: Re: [announce] [patch] Voluntary Kernel Preemption Patch
Date: Sun, 11 Jul 2004 01:12:28 +1000 [thread overview]
Message-ID: <40F0075C.2070607@kolivas.org> (raw)
In-Reply-To: <20040710124814.GA27345@elte.hu>
[-- Attachment #1: Type: text/plain, Size: 826 bytes --]
I've conducted some of the old fashioned Benno's latency test on this
patch in various sysctl configurations. This was done on top of a
different tree but everything else was kept static. I have to preface
these results by saying I don't really get the 50ms size latencies
normally but I'm usually unable to get better than 3ms so I wasn't sure
what to expect.
Only the both preempt off showed any "outlying" results with one spike
of ~20ms but the rest of the time being ~3ms. Enabling both forms of
preempt seemed to help a little but nothing drastic, and never below
1ms. It was not universal that the latencies were better, but there was
a trend towards better latency. I suspect that those who are getting
huge latencies may see a bigger change with this patch than I did.
http://ck.kolivas.org/latency/
Con
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]
next prev parent reply other threads:[~2004-07-10 15:12 UTC|newest]
Thread overview: 270+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-09 18:26 [announce] [patch] Voluntary Kernel Preemption Patch Ingo Molnar
2004-07-09 19:51 ` Christoph Hellwig
2004-07-09 23:50 ` Andrea Arcangeli
2004-07-10 0:52 ` Andrea Arcangeli
2004-07-10 1:02 ` Dave Jones
2004-07-12 10:17 ` Takashi Iwai
2004-07-12 19:36 ` Andrea Arcangeli
2004-07-13 7:43 ` Takashi Iwai
2004-07-10 6:32 ` Arjan van de Ven
2004-07-10 7:57 ` Ingo Molnar
2004-07-10 8:10 ` ismail dönmez
2004-07-10 8:28 ` Ingo Molnar
2004-07-19 10:36 ` [patch] voluntary-preempt 2.6.8-rc2-H4 Ingo Molnar
2004-07-20 1:38 ` Ramón Rey Vicente
2004-07-20 6:02 ` Ingo Molnar
2004-07-10 15:36 ` [announce] [patch] Voluntary Kernel Preemption Patch Andrea Arcangeli
2004-07-10 12:48 ` Ingo Molnar
2004-07-10 15:12 ` Con Kolivas [this message]
2004-07-10 15:14 ` Arjan van de Ven
2004-07-10 15:18 ` Con Kolivas
2004-07-11 7:07 ` Zwane Mwaikambo
2004-07-11 7:09 ` Con Kolivas
2004-07-11 7:16 ` [announce] [patch] " Zwane Mwaikambo
2004-07-11 9:18 ` Ingo Molnar
2004-07-11 9:29 ` Con Kolivas
2004-07-10 16:18 ` [announce] [patch] " Con Kolivas
2004-07-11 6:47 ` [ck] " Ingo Molnar
2004-07-11 6:59 ` Con Kolivas
2004-07-11 11:18 ` R. J. Wysocki
2004-07-11 7:09 ` [ck] Re: [announce] [patch] " Zwane Mwaikambo
2004-07-11 14:27 ` Con Kolivas
2004-07-11 14:29 ` Con Kolivas
2004-07-11 14:38 ` Ingo Molnar
2004-07-11 17:29 ` André Goddard Rosa
2004-07-11 17:49 ` Grzegorz Kulewski
2004-07-11 21:20 ` Con Kolivas
2004-07-11 21:25 ` Grzegorz Kulewski
2004-07-11 20:17 ` Ingo Molnar
2004-07-12 8:23 ` Voluntary Preemption + concurent games Aivils
2004-07-12 9:51 ` Con Kolivas
2004-07-12 10:45 ` Lenar Lõhmus
2004-07-12 11:52 ` Aivils
2004-07-12 13:35 ` Nick Piggin
2004-07-12 14:15 ` [ck] Re: [announce] [patch] Voluntary Kernel Preemption Patch Chris Friesen
2004-07-12 14:19 ` Ingo Molnar
2004-07-10 15:58 ` Andrea Arcangeli
2004-07-09 21:13 ` Redeeman
2004-07-10 8:02 ` Ingo Molnar
2004-07-10 8:50 ` Ingo Molnar
2004-07-10 10:55 ` ismail dönmez
2004-07-10 11:26 ` Arjan van de Ven
2004-07-10 12:01 ` ismail dönmez
2004-07-10 12:05 ` Arjan van de Ven
2004-07-10 12:09 ` Nick Piggin
2004-07-10 12:35 ` Ingo Molnar
2004-07-10 12:58 ` ismail dönmez
2004-07-10 13:55 ` Ingo Molnar
2004-07-10 14:45 ` Nick Piggin
2004-07-10 14:57 ` ismail dönmez
2004-07-12 10:48 ` Takashi Iwai
2004-07-12 13:09 ` ismail dönmez
2004-07-12 13:14 ` Takashi Iwai
2004-07-09 21:36 ` Torrey Hoffman
2004-07-10 8:23 ` Ingo Molnar
2004-07-10 1:00 ` Con Kolivas
2004-07-10 1:04 ` Dave Jones
2004-07-10 12:55 ` Ingo Molnar
2004-07-11 5:25 ` Andrew Morton
2004-07-11 9:32 ` Ingo Molnar
2004-07-11 9:45 ` Andrew Morton
2004-07-11 9:50 ` Ingo Molnar
2004-07-11 9:58 ` Andrew Morton
2004-07-11 10:30 ` Ingo Molnar
2004-07-11 10:42 ` Andrew Morton
2004-07-11 10:59 ` Arjan van de Ven
2004-07-11 11:13 ` Andrew Morton
2004-07-11 18:07 ` Mikulas Patocka
2004-07-12 7:08 ` Zwane Mwaikambo
2004-07-19 10:20 ` Ingo Molnar
2004-07-11 23:12 ` Robert Love
2004-07-12 22:40 ` Bill Davidsen
2004-07-12 13:24 ` John Stoffel
2004-07-12 22:56 ` [linux-audio-dev] " Lee Revell
2004-07-12 23:31 ` Andrew Morton
2004-07-12 23:58 ` Paul Davis
2004-07-13 0:06 ` Andrew Morton
2004-07-13 0:21 ` Con Kolivas
2004-07-13 1:01 ` [linux-audio-dev] Re: [announce] [patch] " Lee Revell
2004-07-13 7:49 ` Takashi Iwai
2004-07-13 8:12 ` Lee Revell
2004-07-13 0:01 ` Paul Davis
2004-07-13 0:08 ` Andrew Morton
2004-07-13 16:25 ` Andrea Arcangeli
2004-07-13 18:42 ` Lee Revell
2004-07-13 21:29 ` Andrew Morton
2004-07-13 21:45 ` Lee Revell
2004-07-14 8:51 ` Takashi Iwai
2004-07-14 9:36 ` Lee Revell
2004-07-14 10:48 ` Takashi Iwai
2004-07-14 14:52 ` Lee Revell
2004-07-14 16:29 ` Lee Revell
2004-07-14 10:26 ` Benno Senoner
2004-07-13 18:48 ` Andrew Morton
2004-07-13 21:38 ` Andrea Arcangeli
2004-07-13 21:54 ` Andrew Morton
2004-07-13 22:01 ` Andrea Arcangeli
2004-07-13 22:25 ` Andrew Morton
2004-07-13 22:37 ` Andrea Arcangeli
2004-07-13 22:44 ` Andrew Morton
2004-07-13 22:53 ` Andrea Arcangeli
2004-07-13 23:06 ` Andrew Morton
2004-07-13 23:18 ` Andrea Arcangeli
2004-07-13 23:32 ` Andrew Morton
2004-07-14 0:40 ` Andrea Arcangeli
2004-07-14 0:45 ` Andrew Morton
2004-07-19 11:59 ` Ingo Molnar
2004-09-02 22:03 ` Andrea Arcangeli
2004-09-02 22:20 ` Andrew Morton
2004-09-02 23:03 ` Ingo Molnar
2004-09-02 23:21 ` Ingo Molnar
2004-07-13 7:58 ` Takashi Iwai
2004-07-13 0:17 ` Lee Revell
2004-07-13 0:46 ` Andrew Morton
2004-07-13 2:52 ` Lee Revell
2004-07-13 3:59 ` Andrew Morton
2004-07-13 7:57 ` Lee Revell
2004-07-19 10:48 ` Ingo Molnar
2004-07-19 11:34 ` Ingo Molnar
2004-07-20 5:38 ` Lee Revell
2004-07-20 6:12 ` Ingo Molnar
2004-07-20 6:59 ` Lee Revell
2004-07-20 7:11 ` Ingo Molnar
[not found] ` <200407202011.20558.musical_snake@gmx.de>
2004-07-20 19:56 ` Lee Revell
2004-07-20 23:49 ` Benno Senoner
2004-07-21 0:32 ` [linux-audio-dev] " Lee Revell
2004-07-21 1:25 ` Timothy Miller
2004-07-21 21:38 ` Another dumb question about " Timothy Miller
2004-07-24 0:25 ` Lee Revell
2004-07-25 20:19 ` Timothy Miller
2004-07-25 20:13 ` Lee Revell
2004-07-21 10:53 ` [linux-audio-dev] Re: [announce] [patch] " Florian Schmidt
2004-07-21 11:18 ` Thomas Charbonnel
2004-07-21 12:04 ` pci gfx card / jack xruns / pci latencies (was: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch) Florian Schmidt
2004-07-21 17:49 ` [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch Fernando Pablo Lopez-Lezcano
2004-07-22 22:25 ` Andrew McGregor
2004-07-22 23:16 ` Florian Schmidt
2004-07-21 14:27 ` Benno Senoner
2004-07-20 12:19 ` Jens Axboe
2004-07-20 21:32 ` Lee Revell
2004-07-24 4:07 ` Lee Revell
2004-07-24 5:46 ` Lee Revell
2004-07-24 6:33 ` Lee Revell
2004-07-24 6:43 ` Ingo Molnar
2004-07-24 22:49 ` Lee Revell
2004-07-24 23:30 ` Lee Revell
2004-07-24 11:27 ` max request size 1024KiB by default? Rudo Thomas
2004-07-24 22:58 ` Lee Revell
2004-07-26 19:29 ` Johannes Stezenbach
2004-07-27 5:15 ` Jens Axboe
2004-07-24 12:41 ` [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch Mark Lord
2004-07-24 4:58 ` Lee Revell
2004-07-13 8:31 ` Lee Revell
2004-07-13 8:43 ` Andrew Morton
2004-07-13 8:53 ` Lee Revell
2004-07-13 9:00 ` Andrew Morton
2004-07-13 9:21 ` Takashi Iwai
2004-07-13 9:25 ` Andrew Morton
2004-07-13 9:33 ` Takashi Iwai
2004-07-13 9:44 ` Andrew Morton
2004-07-13 9:23 ` Lee Revell
2004-07-13 9:29 ` Andrew Morton
2004-07-13 20:37 ` Lee Revell
2004-07-13 22:32 ` Lee Revell
2004-07-13 8:07 ` Takashi Iwai
2004-07-13 22:40 ` Bill Davidsen
2004-07-13 23:47 ` Randy.Dunlap
2004-07-19 10:29 ` Ingo Molnar
2004-07-21 3:27 ` Lee Revell
2004-07-21 7:03 ` Andrew Morton
2004-07-21 4:58 ` Lee Revell
2004-07-21 5:30 ` Ingo Molnar
2004-07-21 6:03 ` Lee Revell
2004-07-21 8:22 ` Ingo Molnar
2004-07-21 8:52 ` Ingo Molnar
2004-07-21 11:32 ` Nick Piggin
2004-07-21 15:44 ` Ingo Molnar
2004-07-22 4:56 ` Nick Piggin
2004-07-22 7:07 ` Ingo Molnar
2004-07-22 10:54 ` Nick Piggin
2004-07-22 16:23 ` Ingo Molnar
2004-07-22 22:11 ` Nick Piggin
2004-07-23 5:47 ` Ingo Molnar
2004-07-23 6:45 ` Nick Piggin
2004-07-23 6:55 ` Ingo Molnar
2004-07-23 7:11 ` Nick Piggin
2004-07-23 7:21 ` Ingo Molnar
2004-07-23 7:28 ` Nick Piggin
2004-07-21 18:34 ` Scott Wood
2004-07-21 18:46 ` Ingo Molnar
2004-07-21 19:56 ` Scott Wood
2004-07-21 21:08 ` Ingo Molnar
2004-07-22 2:47 ` Scott Wood
2004-07-21 21:45 ` Ingo Molnar
2004-07-22 2:28 ` Scott Wood
2004-07-22 7:40 ` Ingo Molnar
2004-07-22 18:53 ` Scott Wood
2004-07-22 19:45 ` Bill Huey
2004-07-28 6:45 ` Ingo Molnar
2004-07-28 20:52 ` Scott Wood
2004-07-29 18:21 ` Ingo Molnar
2004-07-29 18:36 ` Bill Huey
2004-07-29 19:17 ` Scott Wood
2004-07-29 19:25 ` Bill Huey
2004-07-30 2:23 ` Eric St-Laurent
2004-07-29 20:26 ` Pavel Machek
2004-07-29 20:57 ` Scott Wood
2004-07-29 21:00 ` Pavel Machek
2004-07-29 21:07 ` Ingo Molnar
2004-07-21 22:52 ` Nick Piggin
2004-07-21 18:32 ` Scott Wood
2004-07-21 20:40 ` Ingo Molnar
2004-07-21 18:30 ` Scott Wood
2004-07-21 18:43 ` Ingo Molnar
2004-07-22 2:32 ` Scott Wood
2004-07-22 9:51 ` Ingo Molnar
2004-07-22 18:36 ` Scott Wood
2004-07-22 19:11 ` Robert Love
2004-07-21 21:00 ` Scott Wood
2004-07-21 21:18 ` Ingo Molnar
2004-07-21 22:14 ` Bill Huey
2004-07-21 22:31 ` Bill Huey
2004-07-21 22:37 ` Scott Wood
2004-07-22 10:06 ` [patch] voluntary-preempt-2.6.8-rc2-H9 Ingo Molnar
2004-07-22 16:00 ` scheduling while atomic (Re: voluntary-preempt-2.6.8-rc2-H9) Rudo Thomas
2004-07-22 16:19 ` Ingo Molnar
2004-07-22 17:24 ` voluntary-preempt I0: sluggish feel Rudo Thomas
2004-07-22 17:52 ` Matt Heler
2004-07-22 17:54 ` Rudo Thomas
2004-07-22 18:01 ` Ingo Molnar
2004-07-22 18:08 ` Ingo Molnar
2004-07-22 18:14 ` Ingo Molnar
2004-07-22 18:37 ` Rudo Thomas
2004-07-23 10:42 ` [patch] voluntary-preempt-2.6.8-rc2-I3 Ingo Molnar
2004-07-23 10:58 ` Paolo Ciarrocchi
2004-07-23 11:04 ` Ingo Molnar
2004-07-23 11:28 ` [patch] voluntary-preempt-2.6.8-rc2-I4 Ingo Molnar
2004-07-24 0:16 ` Lee Revell
2004-07-23 11:42 ` [patch] voluntary-preempt-2.6.8-rc2-I3 Paolo Ciarrocchi
2004-07-23 12:00 ` Ingo Molnar
2004-07-23 15:36 ` Dang, Linh [CAR:2X23:EXCH]
2004-07-23 23:48 ` Thomas Charbonnel
2004-07-26 11:10 ` Ingo Molnar
2004-07-26 12:27 ` Thomas Charbonnel
2004-07-22 18:31 ` voluntary-preempt I0: sluggish feel Robert Love
2004-07-22 18:32 ` Rudo Thomas
2004-07-22 18:38 ` Ingo Molnar
2004-07-22 18:00 ` Ingo Molnar
2004-07-21 6:07 ` [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch Lee Revell
2004-07-21 10:14 ` Roger Luethi
2004-07-13 0:58 ` Jan Depner
2004-07-13 1:00 ` Andrew Morton
2004-07-13 3:31 ` Florin Andrei
2004-07-13 6:31 ` Paul Winkler
2004-07-13 13:26 ` Benno Senoner
2004-07-13 14:50 ` Paul Davis
2004-07-13 19:45 ` Lee Revell
2004-07-13 22:17 ` Bill Davidsen
2004-07-16 4:50 ` Florin Andrei
2004-07-16 12:49 ` Takashi Iwai
2004-07-13 21:53 ` Timothy Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=40F0075C.2070607@kolivas.org \
--to=kernel@kolivas.org \
--cc=arjanv@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.