From: Lee Revell <rlrevell@joe-job.com>
To: Mark_H_Johnson@raytheon.com
Cc: Ingo Molnar <mingo@elte.hu>, "K.R. Foley" <kr@cybsft.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Felipe Alfaro Solana <lkml@felipe-alfaro.com>,
Daniel Schmitt <pnambic@unu.nu>,
alsa-devel <alsa-devel@lists.sourceforge.net>
Subject: Re: [patch] voluntary-preempt-2.6.9-rc1-bk4-Q5
Date: Tue, 31 Aug 2004 13:20:19 -0400 [thread overview]
Message-ID: <1093972819.5403.8.camel@krustophenia.net> (raw)
In-Reply-To: <OF923A124A.1D8E364E-ON86256F01.0053F7B2-86256F01.0053F7D7@raytheon.com>
On Tue, 2004-08-31 at 11:17, Mark_H_Johnson@raytheon.com wrote:
> >I will be running some additional tests
> >- reducing preempt_max_latency
> >- running with sortirq and hardirq_preemption=0
> >to see if these uncover any further problems.
>
> #1 - audio driver
> latency: 621 us, entries: 28 (28)
> -----------------
> | task: latencytest/11492, uid:0 nice:0 policy:1 rt_prio:99
> -----------------
> => started at: snd_ensoniq_playback1_prepare+0x74/0x180
> => ended at: snd_ensoniq_playback1_prepare+0x11d/0x180
> =======>
> 00000001 0.000ms (+0.000ms): snd_ensoniq_playback1_prepare
> (snd_pcm_do_prepare)
> 00000001 0.014ms (+0.014ms): snd_es1371_dac1_rate
> (snd_ensoniq_playback1_prepare)
> 00000001 0.014ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_dac1_rate)
> 00000001 0.562ms (+0.548ms): snd_es1371_src_read (snd_es1371_dac1_rate)
> 00000001 0.562ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_read)
> 00000001 0.578ms (+0.015ms): snd_es1371_wait_src_ready
> (snd_es1371_src_read)
> 00000001 0.585ms (+0.006ms): snd_es1371_src_write (snd_es1371_dac1_rate)
> 00000001 0.585ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_write)
> 00000001 0.601ms (+0.015ms): snd_es1371_src_write (snd_es1371_dac1_rate)
> 00000001 0.601ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_write)
> 00000001 0.602ms (+0.001ms): snd_es1371_wait_src_ready
> (snd_es1371_dac1_rate)
> 00000001 0.616ms (+0.013ms): smp_apic_timer_interrupt
> (snd_ensoniq_playback1_prepare)
>
> or
>
> latency: 663 us, entries: 41 (41)
> -----------------
> | task: latencytest/11492, uid:0 nice:0 policy:1 rt_prio:99
> -----------------
> => started at: snd_ensoniq_playback1_prepare+0x74/0x180
> => ended at: snd_ensoniq_playback1_prepare+0x11d/0x180
> =======>
> 00000001 0.000ms (+0.000ms): snd_ensoniq_playback1_prepare
> (snd_pcm_do_prepare)
> 00000001 0.004ms (+0.004ms): snd_es1371_dac1_rate
> (snd_ensoniq_playback1_prepare)
> 00000001 0.005ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_dac1_rate)
> 00000001 0.006ms (+0.001ms): snd_es1371_src_read (snd_es1371_dac1_rate)
> 00000001 0.006ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_read)
> 00000001 0.019ms (+0.012ms): snd_es1371_wait_src_ready
> (snd_es1371_src_read)
> 00000001 0.607ms (+0.588ms): snd_es1371_src_write (snd_es1371_dac1_rate)
> 00000001 0.608ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_write)
> 00000001 0.624ms (+0.016ms): snd_es1371_src_write (snd_es1371_dac1_rate)
> 00000001 0.624ms (+0.000ms): snd_es1371_wait_src_ready
> (snd_es1371_src_write)
> 00000001 0.626ms (+0.001ms): snd_es1371_wait_src_ready
> (snd_es1371_dac1_rate)
> 00000001 0.639ms (+0.013ms): smp_apic_timer_interrupt
> (snd_ensoniq_playback1_prepare)
Hmm, looks like the es1371 takes ~0.5 ms to set the DAC rate. The ALSA
team would probably be able to help. Takashi, any ideas?
Lee
next prev parent reply other threads:[~2004-08-31 17:27 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-31 15:17 [patch] voluntary-preempt-2.6.9-rc1-bk4-Q5 Mark_H_Johnson
2004-08-31 17:20 ` Lee Revell [this message]
2004-08-31 18:09 ` Lee Revell
2004-08-31 18:53 ` Takashi Iwai
2004-08-31 18:56 ` Ingo Molnar
2004-09-02 16:59 ` Jaroslav Kysela
2004-09-02 17:50 ` Lee Revell
2004-08-31 18:19 ` Takashi Iwai
2004-08-31 18:48 ` Ingo Molnar
2004-08-31 19:02 ` Takashi Iwai
2004-08-31 18:50 ` Ingo Molnar
[not found] <OFD220F58F.002C5901-ON86256F02.005C2FB1-86256F02.005C2FD5@raytheon.com>
2004-09-01 17:09 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2004-09-01 15:21 Mark_H_Johnson
2004-09-02 22:24 ` Ingo Molnar
2004-09-01 14:37 Mark_H_Johnson
2004-09-01 19:31 ` Takashi Iwai
[not found] <2yiVZ-IZ-15@gated-at.bofh.it>
[not found] ` <2ylhi-2hg-3@gated-at.bofh.it>
[not found] ` <2ynLU-42D-7@gated-at.bofh.it>
[not found] ` <2yqJJ-5ZL-1@gated-at.bofh.it>
[not found] ` <2yQkS-6Zh-13@gated-at.bofh.it>
[not found] ` <2zaCV-4FE-3@gated-at.bofh.it>
[not found] ` <2zaWk-4Yj-9@gated-at.bofh.it>
[not found] ` <2zmE8-4Zz-11@gated-at.bofh.it>
[not found] ` <2zngP-5wD-9@gated-at.bofh.it>
[not found] ` <2zngP-5wD-7@gated-at.bofh.it>
[not found] ` <2znJS-5Pm-25@gated-at.bofh.it>
2004-08-31 23:06 ` Andi Kleen
[not found] ` <2znJS-5Pm-27@gated-at.bofh.it>
[not found] ` <2znJS-5Pm-29@gated-at.bofh.it>
[not found] ` <2znJS-5Pm-31@gated-at.bofh.it>
[not found] ` <2znJS-5Pm-33@gated-at.bofh.it>
2004-08-31 23:10 ` Andi Kleen
2004-09-01 7:05 ` Ingo Molnar
2004-08-31 20:10 Mark_H_Johnson
2004-08-31 20:37 ` Ingo Molnar
2004-08-31 12:46 Mark_H_Johnson
2004-08-30 22:04 Mark_H_Johnson
2004-08-31 6:31 ` Ingo Molnar
2004-09-01 7:30 ` Ingo Molnar
2004-08-30 19:13 Mark_H_Johnson
2004-08-30 19:21 ` Ingo Molnar
2004-08-31 8:49 ` Ingo Molnar
2004-09-02 6:33 ` Ingo Molnar
2004-08-28 17:52 [patch] voluntary-preempt-2.6.9-rc1-bk4-Q0 Lee Revell
2004-08-28 19:44 ` [patch] voluntary-preempt-2.6.9-rc1-bk4-Q2 Ingo Molnar
2004-08-28 20:10 ` Daniel Schmitt
2004-08-28 20:31 ` [patch] voluntary-preempt-2.6.9-rc1-bk4-Q3 Ingo Molnar
2004-08-28 21:10 ` Lee Revell
2004-08-28 21:13 ` Ingo Molnar
2004-08-28 21:16 ` Lee Revell
2004-08-28 23:51 ` Lee Revell
2004-08-29 2:35 ` Lee Revell
2004-08-29 5:43 ` [patch] voluntary-preempt-2.6.9-rc1-bk4-Q4 Ingo Molnar
2004-08-30 9:06 ` [patch] voluntary-preempt-2.6.9-rc1-bk4-Q5 Ingo Molnar
2004-08-30 14:25 ` Thomas Charbonnel
2004-08-30 18:00 ` Ingo Molnar
2004-08-31 19:23 ` Thomas Charbonnel
2004-08-31 19:30 ` Ingo Molnar
2004-08-31 19:45 ` Thomas Charbonnel
2004-08-31 6:40 ` Lee Revell
2004-08-31 6:53 ` Ingo Molnar
2004-08-31 23:03 ` Lee Revell
2004-09-01 15:52 ` Martin Josefsson
2004-09-01 21:15 ` Lee Revell
2004-09-01 21:30 ` Lee Revell
2004-08-31 7:06 ` Ingo Molnar
2004-08-31 19:21 ` Lee Revell
2004-08-31 19:37 ` Ingo Molnar
2004-08-31 19:47 ` Lee Revell
2004-08-31 19:51 ` Ingo Molnar
2004-08-31 20:09 ` Ingo Molnar
2004-08-31 20:10 ` Lee Revell
2004-08-31 20:14 ` Ingo Molnar
2004-08-31 20:20 ` Ingo Molnar
2004-08-31 20:34 ` Lee Revell
2004-08-31 20:39 ` Ingo Molnar
2004-08-31 20:41 ` Lee Revell
2004-08-31 17:40 ` Peter Zijlstra
2004-09-01 1:43 ` Lee Revell
2004-09-01 2:30 ` Lee Revell
2004-09-01 7:27 ` Lee Revell
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=1093972819.5403.8.camel@krustophenia.net \
--to=rlrevell@joe-job.com \
--cc=Mark_H_Johnson@raytheon.com \
--cc=alsa-devel@lists.sourceforge.net \
--cc=kr@cybsft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=lkml@felipe-alfaro.com \
--cc=mingo@elte.hu \
--cc=pnambic@unu.nu \
/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