From: Ingo Molnar <mingo@elte.hu>
To: Florian Schmidt <mista.tapas@gmx.net>
Cc: Rui Nuno Capela <rncbc@rncbc.org>,
linux-kernel@vger.kernel.org, Lee Revell <rlrevell@joe-job.com>,
mark_h_johnson@raytheon.com, "K.R. Foley" <kr@cybsft.com>,
Bill Huey <bhuey@lnxw.com>, Adam Heath <doogie@debian.org>,
Thomas Gleixner <tglx@linutronix.de>,
Michal Schmidt <xschmi00@stud.feec.vutbr.cz>,
Fernando Pablo Lopez-Lezcano <nando@ccrma.stanford.edu>,
Karsten Wiese <annabellesgarden@yahoo.de>,
Gunther Persoons <gunther_persoons@spymac.com>,
emann@mrv.com, Shane Shrybman <shrybman@aei.ca>,
Amit Shah <amit.shah@codito.com>,
Esben Nielsen <simlo@phys.au.dk>, Andrew Morton <akpm@osdl.org>
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19
Date: Thu, 2 Dec 2004 13:29:31 +0100 [thread overview]
Message-ID: <20041202122931.GA25357@elte.hu> (raw)
In-Reply-To: <20041202132218.02ea2c48@mango.fruits.de>
[-- Attachment #1: Type: text/plain, Size: 1017 bytes --]
* Florian Schmidt <mista.tapas@gmx.net> wrote:
> > the 2.6 msec timeout in pipe_poll() already generates an xrun.
>
> yep. now the question is: why did jackd have to wait so long for the
> client? what was the client doing? was it sleeping? what client was
> it? probably not the simple jack_test client, right?
it's very likely not the simple jack_test client. I've attached the
trace in question. Here are the tasks that were running:
gkrellm
IRQ 0
IRQ 14
IRQ 5
jackd
kblockd
korgac
ksoftirq
qjackctl
qsynth
X
xmms
the trace doesnt show what task jackd was waiting on, and it would be
hard to establish it, the tracepoint would have to 'discover' all other
holders of the pipe fd, which is quite complex.
> Oh wow. Just before hitting send i got three xruns of around
> 0.020-0.050msec. Ok, will read up on recent emails to see what to do
> to debug these.
which jackd version is this? I saw similar small spurious xruns with
99.0, those went away in recent CVS versions.
Ingo
[-- Attachment #2: xruntrace1-2.6.10-rc2-mm3-RT-V0.7.31-19-20041201202926.trc.gz --]
[-- Type: application/x-gzip, Size: 51588 bytes --]
next prev parent reply other threads:[~2004-12-02 12:31 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-26 12:12 Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7 Rui Nuno Capela
2004-11-29 11:05 ` Ingo Molnar
2004-11-29 11:16 ` Ingo Molnar
2004-11-29 11:24 ` Ingo Molnar
2004-11-29 15:42 ` Ingo Molnar
2004-11-29 13:13 ` Rui Nuno Capela
2004-11-29 14:33 ` Ingo Molnar
2004-11-29 15:23 ` Ingo Molnar
2004-11-29 23:16 ` Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-13 Gene Heskett
2004-11-30 1:50 ` K.R. Foley
2004-11-30 3:19 ` Gene Heskett
2004-11-30 4:54 ` Gene Heskett
2004-11-30 15:26 ` K.R. Foley
2004-11-30 16:24 ` Gene Heskett
2004-11-30 16:52 ` Zwane Mwaikambo
2004-12-01 7:16 ` Gene Heskett
2004-11-30 16:57 ` K.R. Foley
2004-11-30 10:29 ` Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7 Rui Nuno Capela
2004-11-30 13:19 ` Ingo Molnar
2004-11-30 15:39 ` Rui Nuno Capela
2004-11-30 16:42 ` Ingo Molnar
2004-12-01 10:32 ` Ingo Molnar
2004-12-01 11:25 ` Ingo Molnar
2004-12-01 12:49 ` Rui Nuno Capela
2004-12-01 12:47 ` Rui Nuno Capela
2004-12-01 15:40 ` Ingo Molnar
2004-12-01 16:06 ` Ingo Molnar
2004-12-01 16:20 ` [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19 Ingo Molnar
2004-12-01 16:31 ` Ingo Molnar
2004-12-01 18:59 ` Rui Nuno Capela
2004-12-01 21:29 ` Ingo Molnar
2004-12-01 21:30 ` Ingo Molnar
[not found] ` <32788.192.168.1.8.1101938057.squirrel@192.168.1.8>
2004-12-01 21:58 ` Ingo Molnar
2004-12-01 22:04 ` Rui Nuno Capela
2004-12-01 22:09 ` Ingo Molnar
2004-12-01 22:31 ` Rui Nuno Capela
2004-12-02 9:12 ` Rui Nuno Capela
2004-12-02 12:59 ` Rui Nuno Capela
2004-12-02 16:38 ` Fernando Lopez-Lezcano
2004-12-01 22:43 ` Florian Schmidt
2004-12-02 8:40 ` Ingo Molnar
2004-12-02 12:22 ` Florian Schmidt
2004-12-02 12:29 ` Ingo Molnar [this message]
2004-12-02 13:06 ` Florian Schmidt
2004-12-02 13:10 ` Ingo Molnar
2004-12-02 13:40 ` Florian Schmidt
2004-12-02 13:49 ` Ingo Molnar
2004-12-02 16:08 ` Florian Schmidt
2004-12-02 17:44 ` Florian Schmidt
2004-12-02 21:12 ` Florian Schmidt
2004-12-02 13:18 ` Rui Nuno Capela
2004-12-03 1:41 ` Fernando Lopez-Lezcano
2004-12-03 2:23 ` Fernando Lopez-Lezcano
2004-11-30 18:13 ` Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7 Remi Colinet
2004-11-30 8:15 ` Ingo Molnar
2004-12-01 8:30 ` Eran Mann
2004-12-01 8:53 ` Ingo Molnar
2004-12-01 18:19 ` Adam Heath
-- strict thread matches above, loose matches on Subject: below --
2004-12-02 21:01 [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-19 Mark_H_Johnson
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=20041202122931.GA25357@elte.hu \
--to=mingo@elte.hu \
--cc=akpm@osdl.org \
--cc=amit.shah@codito.com \
--cc=annabellesgarden@yahoo.de \
--cc=bhuey@lnxw.com \
--cc=doogie@debian.org \
--cc=emann@mrv.com \
--cc=gunther_persoons@spymac.com \
--cc=kr@cybsft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark_h_johnson@raytheon.com \
--cc=mista.tapas@gmx.net \
--cc=nando@ccrma.stanford.edu \
--cc=rlrevell@joe-job.com \
--cc=rncbc@rncbc.org \
--cc=shrybman@aei.ca \
--cc=simlo@phys.au.dk \
--cc=tglx@linutronix.de \
--cc=xschmi00@stud.feec.vutbr.cz \
/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