From: Con Kolivas <kernel@kolivas.org>
To: "Jack O'Quin" <joq@io.com>
Cc: Rui Nuno Capela <rncbc@rncbc.org>,
linux <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
rlrevell@joe-job.com, paul@linuxaudiosystems.com,
CK Kernel <ck@vds.kolivas.org>, utz <utz@s2y4n2c.de>,
Andrew Morton <akpm@osdl.org>,
alexn@dsv.su.se
Subject: Re: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling
Date: Sun, 23 Jan 2005 15:50:58 +1100 [thread overview]
Message-ID: <41F32D32.7050007@kolivas.org> (raw)
In-Reply-To: <87acr03g8e.fsf@sulphur.joq.us>
[-- Attachment #1: Type: text/plain, Size: 1307 bytes --]
Jack O'Quin wrote:
> Con Kolivas <kernel@kolivas.org> writes:
>
>
>>Jack O'Quin wrote:
>>[snip lots of valid points]
>>
>>>suggest some things to try. First, make sure the JACK tmp directory
>>>is mounted on a tmpfs[1]. Then, try the test with ext2, instead of
>>
>>Looks like the tmpfs is probably the biggest problem. Here's SCHED_ISO
>>with just the /tmp mounted on tmpfs change - running on a complete
>>desktop environment with a 2nd exported X seession and my wife
>>browsing the net and emailing at the same time.
>>
>>All invalid runs removed and just this one posted here:
>>http://ck.kolivas.org/patches/SCHED_ISO/iso2-benchmarks/
>>
>>How's that look?
>
>
> Excellent!
>
> Sorry I didn't warn you about that problem before. JACK audio users
> generally know about it, but there's no reason you should have.
>
> So, that was run with ext3?
Yes I think I mentioned before this is a different machine than the
pentiumM one. It's a P4HT3.06 with on board i810 sound and ext3 (which
explains the vastly different DSP usage). The only "special" measure
taken for jackd was to use the latest jackd code and the tmpfs mount you
suggested. Looks like the number of steps to convert a modern "standard
setup" desktop to a low latency one on linux aren't that big after all :)
Cheers,
Con
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]
next prev parent reply other threads:[~2005-01-23 4:52 UTC|newest]
Thread overview: 198+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-19 22:39 [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling Con Kolivas
2005-01-20 0:16 ` utz lehmann
2005-01-20 0:33 ` Con Kolivas
2005-01-20 4:26 ` utz lehmann
2005-01-20 5:55 ` Con Kolivas
2005-01-20 17:54 ` Alexander Nyberg
2005-01-20 20:27 ` Con Kolivas
2005-01-20 0:53 ` Con Kolivas
2005-01-20 1:32 ` Jack O'Quin
2005-01-20 2:06 ` Con Kolivas
2005-01-20 2:45 ` Jack O'Quin
2005-01-20 4:07 ` Con Kolivas
2005-01-20 4:57 ` Jack O'Quin
2005-01-20 5:05 ` Gene Heskett
2005-01-20 5:59 ` Con Kolivas
2005-01-20 6:35 ` Con Kolivas
2005-01-20 15:19 ` Jack O'Quin
2005-01-20 15:42 ` Paul Davis
2005-01-20 16:47 ` Jack O'Quin
2005-01-20 17:25 ` Ingo Molnar
2005-01-22 0:09 ` Jack O'Quin
2005-01-22 16:54 ` Ingo Molnar
2005-01-22 21:23 ` Jack O'Quin
2005-01-23 2:06 ` Nick Piggin
2005-01-23 2:58 ` Chris Wright
2005-01-24 8:59 ` Ingo Molnar
2005-01-24 9:55 ` Paolo Ciarrocchi
2005-01-24 10:29 ` Nick Piggin
2005-01-24 10:46 ` Ingo Molnar
2005-01-24 12:58 ` [patch, 2.6.11-rc2] sched: /proc/sys/kernel/rt_cpu_limit tunable Ingo Molnar
2005-01-24 13:34 ` Ingo Molnar
2005-01-24 13:53 ` Con Kolivas
2005-01-24 14:01 ` [ck] " Con Kolivas
[not found] ` <87k6q2umla.fsf@sulphur.joq.us>
2005-01-25 6:28 ` Nick Piggin
2005-01-25 14:12 ` Ingo Molnar
2005-01-25 8:37 ` Ingo Molnar
2005-01-25 21:36 ` Jack O'Quin
2005-01-25 21:49 ` Ingo Molnar
2005-01-25 21:55 ` Chris Wright
2005-01-25 21:57 ` Ingo Molnar
2005-01-25 22:03 ` Chris Wright
2005-01-25 22:08 ` Ingo Molnar
2005-01-25 22:16 ` Chris Wright
2005-01-25 22:44 ` Bill Rugolsky Jr.
2005-01-26 5:12 ` Jack O'Quin
2005-01-26 7:27 ` Ingo Molnar
2005-01-26 11:02 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU feature, -D7 Ingo Molnar
2005-01-25 13:56 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature Ingo Molnar
2005-01-25 14:06 ` Con Kolivas
2005-01-25 22:18 ` Peter Williams
2005-01-25 22:26 ` Peter Williams
2005-01-26 10:08 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU feature, -D7 Ingo Molnar
2005-01-26 14:22 ` Jack O'Quin
2005-01-26 16:18 ` [ck] " Cal
2005-01-26 16:29 ` Cal
2005-01-26 16:41 ` Jack O'Quin
2005-01-26 17:57 ` Cal
2005-01-26 18:57 ` Jack O'Quin
2005-01-27 2:03 ` Cal
2005-01-27 8:51 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU feature, -D8 Ingo Molnar
2005-01-27 12:48 ` Cal
2005-01-27 16:31 ` Mike Galbraith
2005-01-26 21:28 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU feature, -D7 Peter Williams
2005-01-26 21:44 ` Peter Williams
2005-01-26 9:20 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature Ingo Molnar
2005-01-31 23:03 ` Peter Williams
2005-02-01 10:11 ` [patch] sys_setpriority() euid semantics fix Ingo Molnar
2005-02-01 21:46 ` Peter Williams
2005-01-26 5:24 ` [patch, 2.6.11-rc2] sched: RLIMIT_RT_CPU_RATIO feature Jack O'Quin
2005-01-26 7:04 ` Ingo Molnar
2005-01-26 22:27 ` Jack O'Quin
2005-01-26 23:29 ` Nick Piggin
2005-01-27 2:31 ` Jack O'Quin
2005-01-27 3:26 ` Nick Piggin
2005-01-27 5:15 ` Jack O'Quin
2005-01-27 5:54 ` Nick Piggin
2005-01-27 8:35 ` Ingo Molnar
2005-01-27 8:59 ` Ingo Molnar
2005-01-27 11:35 ` Ingo Molnar
2005-02-02 5:10 ` Jack O'Quin
2005-02-02 11:10 ` Bill Huey
2005-02-02 16:44 ` Jack O'Quin
2005-02-02 21:14 ` Bill Huey
2005-02-02 21:20 ` Bill Huey
2005-02-02 21:21 ` Ingo Molnar
2005-02-02 21:34 ` Bill Huey
2005-02-02 22:59 ` Paul Davis
2005-02-03 2:46 ` Bill Huey
2005-02-03 14:20 ` Paul Davis
2005-02-03 20:19 ` Con Kolivas
2005-02-03 20:47 ` Ingo Molnar
2005-02-03 21:15 ` Paul Davis
2005-02-03 21:28 ` Ingo Molnar
2005-02-03 21:41 ` Paul Davis
2005-02-03 21:59 ` Ingo Molnar
2005-02-03 22:24 ` Paul Davis
2005-02-03 22:26 ` Ingo Molnar
2005-02-04 0:36 ` Tristan Wibberley
2005-02-03 21:48 ` Peter Williams
2005-02-04 16:41 ` Jack O'Quin
2005-02-04 21:38 ` Peter Williams
2005-02-03 21:41 ` Ingo Molnar
2005-02-03 23:01 ` Bill Huey
2005-02-11 21:27 ` Lee Revell
2005-02-02 21:54 ` Peter Williams
2005-02-02 23:03 ` Paul Davis
2005-02-02 23:46 ` Peter Williams
2005-02-03 1:13 ` Jack O'Quin
2005-02-03 3:10 ` Peter Williams
2005-02-03 3:56 ` Jack O'Quin
2005-02-03 21:36 ` Ingo Molnar
2005-02-04 0:35 ` Chris Wright
2005-02-04 17:21 ` Jack O'Quin
2005-02-03 2:54 ` Bill Huey
2005-02-03 3:25 ` Peter Williams
2005-02-02 11:37 ` Ingo Molnar
2005-02-02 16:01 ` Jack O'Quin
2005-02-02 18:59 ` Lee Revell
2005-02-02 19:31 ` Jack O'Quin
2005-02-02 20:29 ` Ingo Molnar
2005-02-02 22:45 ` Jack O'Quin
2005-02-02 20:17 ` Ingo Molnar
2005-01-27 20:01 ` Lee Revell
2005-01-28 6:38 ` Ingo Molnar
2005-01-28 8:09 ` Jack O'Quin
2005-01-28 8:08 ` Ingo Molnar
2005-01-28 8:35 ` Jack O'Quin
2005-01-28 8:40 ` Ingo Molnar
2005-01-28 9:01 ` Jack O'Quin
2005-01-28 9:11 ` Ingo Molnar
2005-01-29 0:44 ` Lee Revell
2005-01-28 9:51 ` Mike Galbraith
2005-01-28 22:16 ` Peter Williams
2005-01-28 22:19 ` Ingo Molnar
2005-01-29 7:02 ` Jack O'Quin
2005-01-31 22:29 ` Bill Davidsen
2005-02-01 0:39 ` Bill Huey
2005-01-25 5:16 ` [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling Jack O'Quin
2005-01-25 15:09 ` Ingo Molnar
2005-01-23 20:48 ` Jack O'Quin
2005-01-23 22:57 ` Con Kolivas
2005-01-24 1:06 ` Jack O'Quin
2005-01-24 1:09 ` Con Kolivas
2005-01-24 4:45 ` Jack O'Quin
2005-01-24 4:53 ` Jack O'Quin
2005-01-24 6:28 ` Jack O'Quin
2005-01-24 6:35 ` Con Kolivas
2005-01-24 6:57 ` Jack O'Quin
2005-01-24 22:58 ` Con Kolivas
2005-01-25 3:55 ` Con Kolivas
2005-01-25 13:05 ` Con Kolivas
2005-01-25 14:38 ` Con Kolivas
2005-01-25 18:36 ` Jack O'Quin
2005-01-25 20:52 ` Rui Nuno Capela
2005-01-24 21:46 ` Con Kolivas
2005-01-23 7:38 ` Jack O'Quin
2005-01-23 7:41 ` Con Kolivas
2005-01-24 6:30 ` Jack O'Quin
2005-01-24 20:55 ` Ingo Molnar
2005-01-20 21:59 ` Peter Chubb
2005-01-21 0:30 ` Jack O'Quin
2005-01-22 14:06 ` Paul Davis
2005-01-20 17:49 ` ross
2005-01-20 19:07 ` Lee Revell
2005-01-20 23:17 ` Con Kolivas
2005-01-21 7:48 ` Ingo Molnar
2005-02-07 3:09 ` Werner Almesberger
2005-02-07 3:27 ` Jack O'Quin
2005-02-07 3:27 ` Con Kolivas
2005-01-20 9:06 ` Rui Nuno Capela
2005-01-20 17:09 ` Rui Nuno Capela
2005-01-20 19:32 ` Jack O'Quin
2005-01-21 9:18 ` Rui Nuno Capela
2005-01-21 16:23 ` Con Kolivas
2005-01-21 16:40 ` Jack O'Quin
2005-01-22 0:06 ` Con Kolivas
2005-01-22 6:18 ` Jack O'Quin
2005-01-22 6:19 ` Con Kolivas
2005-01-22 6:48 ` Con Kolivas
2005-01-22 6:50 ` Con Kolivas
2005-01-22 7:09 ` Con Kolivas
2005-01-22 20:22 ` Jack O'Quin
2005-01-23 1:02 ` Con Kolivas
2005-01-23 3:02 ` Jack O'Quin
2005-01-23 4:29 ` Con Kolivas
2005-01-23 4:46 ` Jack O'Quin
2005-01-23 4:50 ` Con Kolivas [this message]
2005-01-23 7:37 ` Mike Galbraith
2005-01-23 13:57 ` Paul Davis
2005-01-23 1:31 ` Con Kolivas
2005-01-23 1:41 ` Paul Davis
2005-01-23 1:56 ` Con Kolivas
2005-01-23 4:50 ` Jack O'Quin
2005-01-21 23:30 ` utz lehmann
2005-01-21 23:48 ` Con Kolivas
2005-01-22 0:28 ` utz lehmann
2005-01-22 3:52 ` Con Kolivas
2005-01-22 6:15 ` Jack O'Quin
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=41F32D32.7050007@kolivas.org \
--to=kernel@kolivas.org \
--cc=akpm@osdl.org \
--cc=alexn@dsv.su.se \
--cc=ck@vds.kolivas.org \
--cc=joq@io.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=paul@linuxaudiosystems.com \
--cc=rlrevell@joe-job.com \
--cc=rncbc@rncbc.org \
--cc=utz@s2y4n2c.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox