From: "Éric Piel" <eric.piel@tremplin-utc.net>
To: Takashi Iwai <tiwai@suse.de>
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 10:15:20 +0100 [thread overview]
Message-ID: <4B308E28.1090609@tremplin-utc.net> (raw)
In-Reply-To: <s5hk4wf1obu.wl%tiwai@suse.de>
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?
Eric
next prev parent reply other threads:[~2009-12-22 9:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-20 17:27 [2.6.33-rc1] [SOUND] HDA: high cpu usage, noise 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 [this message]
2009-12-22 9:17 ` Takashi Iwai
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
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