From: Takashi Iwai <tiwai@suse.de>
To: "Éric Piel" <eric.piel@tremplin-utc.net>
Cc: Maciej Rutecki <maciej.rutecki@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
alsa-devel@alsa-project.org, perex@perex.cz,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [2.6.33-rc1] [SOUND] HDA: high cpu usage, noise
Date: Tue, 22 Dec 2009 10:17:25 +0100 [thread overview]
Message-ID: <s5hk4wfz7tm.wl%tiwai@suse.de> (raw)
In-Reply-To: <4B308E28.1090609@tremplin-utc.net>
At Tue, 22 Dec 2009 10:15:20 +0100,
Éric Piel wrote:
>
> Op 22-12-09 08:04, Takashi Iwai schreef:
> > At Mon, 21 Dec 2009 20:08:34 +0100,
> > Éric Piel wrote:
> :
> >> Could it be coming from this timeout?
> >
> > It shouldn't. The polling mode doesn't give any behavioral change,
> > and the CPU usage can't be that high.
> >
> > Try is to pass bdl_pos_adj=0 option. This should reduce the CPU hog,
> > at least. But it doesn't mean it's the right fix...
> I'll try
>
> >
> > Another thing to try is to replace the whole HD-audio stack with the
> > last working one (was it 2.6.32?), and check whether it works with
> > 2.6.32 core.
> Could you give more details on how to do this?
> Does it consist in taking the sound/ directory of 2.6.32 and copying it
> over 2.6.33-rc1 ? Or less files?
I'd try first only sound/pci/hda/* files.
Takashi
next prev parent reply other threads:[~2009-12-22 9:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-20 17:27 Maciej Rutecki
2009-12-21 10:28 ` Takashi Iwai
2009-12-21 18:12 ` Maciej Rutecki
2009-12-21 19:08 ` Éric Piel
2009-12-22 7:04 ` Takashi Iwai
2009-12-22 9:15 ` Éric Piel
2009-12-22 9:17 ` Takashi Iwai [this message]
2009-12-22 15:15 ` Éric Piel
2009-12-22 15:40 ` Takashi Iwai
2009-12-22 15:42 ` Éric Piel
2009-12-23 14:27 ` Éric Piel
2009-12-23 15:02 ` Takashi Iwai
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=s5hk4wfz7tm.wl%tiwai@suse.de \
--to=tiwai@suse.de \
--cc=alsa-devel@alsa-project.org \
--cc=eric.piel@tremplin-utc.net \
--cc=linux-kernel@vger.kernel.org \
--cc=maciej.rutecki@gmail.com \
--cc=perex@perex.cz \
--cc=rjw@sisk.pl \
/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
all inboxes | Powered by JetHome®