From: Takashi Iwai <tiwai@suse.de>
To: Lars Heineken <Lars.Heineken@gmx.de>
Cc: alsa-devel@lists.sourceforge.net
Subject: Re: Opening dev/dsp takes very long
Date: Mon, 15 Mar 2004 11:35:25 +0100 [thread overview]
Message-ID: <s5hr7vuiej6.wl@alsa2.suse.de> (raw)
In-Reply-To: <40536881.4030903@gmx.de>
At Sat, 13 Mar 2004 21:01:05 +0100,
Lars Heineken wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi !
>
> I switched from 2.4 to 2.6 a few days ago and noticed this strange
> problem. Whatever program uses OSS-emulation takes 1-3 seconds to open
> /dev/dsp and start playing sound. It seems that this has something to do
> with the preemptive kernel option, because I experienced the same when I
> tried a 2.4 kernel with the preemptive patch.
> I thought that having a prememtive kernel would reduce delays in general
> ~ and not increase them dramatically.
> How can I be of help to find and locate this problem ?
try strace with -r option and check which call takes too long time.
Takashi
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next prev parent reply other threads:[~2004-03-15 10:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-13 20:01 Opening dev/dsp takes very long Lars Heineken
2004-03-13 20:24 ` Additional info: " Lars Heineken
2004-03-15 10:35 ` Takashi Iwai [this message]
2004-03-15 20:22 ` Lars Heineken
2004-03-16 8:19 ` Clemens Ladisch
2004-03-16 8:49 ` Lars Heineken
2004-03-16 19:04 ` Lars Heineken
2004-03-19 12:29 ` Lars Heineken
2004-03-19 21:58 ` Lars Heineken
2004-03-19 23:56 ` James Courtier-Dutton
2004-03-20 8:20 ` Lars Heineken
2004-03-20 13:24 ` Jaroslav Kysela
2004-03-20 16:09 ` Lars Heineken
2004-03-20 16:11 ` Jaroslav Kysela
2004-03-20 16:59 ` Lars Heineken
2004-03-20 17:13 ` Tommi Sakari Uimonen
2004-03-20 17:12 ` Jaroslav Kysela
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