From: Lennart Poettering <mznyfn@0pointer.de>
To: Raymond Yau <superquad.vortex2@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: safe support for rewind in ALSA
Date: Wed, 17 Feb 2010 16:35:15 +0100 [thread overview]
Message-ID: <20100217153515.GB6891@tango.0pointer.de> (raw)
In-Reply-To: <4f3252891002081459q29f02414hf168a596ab641995@mail.gmail.com>
On Tue, 09.02.10 06:59, Raymond Yau (superquad.vortex2@gmail.com) wrote:
> why do PA insist to use one period per buffer when only those ISA drivers
> and intel8x0 have periods_min =1 , the most common HDA driver and most sound
> cards have periods_min =2 ?
PA actually doesn't insist. We just try to minimize wakeups and hence
pick the lowest value we can get. Which means 2 frags on most devices
and 1 on very few others.
Lennart
--
Lennart Poettering Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/ GnuPG 0x1A015CC4
next prev parent reply other threads:[~2010-02-17 15:35 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-01 17:20 safe support for rewind in ALSA pl bossart
2010-02-01 18:00 ` Jaroslav Kysela
2010-02-01 22:40 ` pl bossart
2010-02-03 2:20 ` Raymond Yau
2010-02-03 18:03 ` Kai Vehmanen
2010-02-03 20:52 ` Kai Vehmanen
2010-02-03 22:57 ` pl bossart
2010-02-08 1:22 ` Raymond Yau
2010-02-02 2:53 ` Raymond Yau
2010-02-06 11:59 ` Raymond Yau
2010-02-17 15:30 ` Lennart Poettering
2010-02-18 1:31 ` Raymond Yau
2010-02-18 2:33 ` Lennart Poettering
2010-02-18 3:21 ` Raymond Yau
2010-02-01 18:01 ` Mark Brown
2010-02-01 18:05 ` Jaroslav Kysela
2010-02-01 21:28 ` Kai Vehmanen
2010-02-01 21:54 ` Kai Vehmanen
2010-02-08 22:59 ` Raymond Yau
2010-02-09 20:54 ` Kai Vehmanen
2010-02-10 13:19 ` Raymond Yau
2010-02-10 13:36 ` Clemens Ladisch
2010-02-11 6:52 ` Raymond Yau
2010-02-11 7:20 ` Clemens Ladisch
2010-02-11 7:27 ` Jaroslav Kysela
2010-02-15 3:03 ` Raymond Yau
2010-02-17 15:46 ` Lennart Poettering
2010-02-21 10:35 ` Kai Vehmanen
2010-02-22 9:07 ` Raymond Yau
[not found] ` <20100221203500.GH31800@tango.0pointer.de>
2010-02-22 19:15 ` semantics of SNDRV_PCM_INFO_BATCH (was: Re: safe support for rewind in ALSA) Kai Vehmanen
2010-02-23 7:02 ` Raymond Yau
2010-02-23 2:37 ` safe support for rewind in ALSA Raymond Yau
2010-02-23 2:44 ` Raymond Yau
2010-02-17 15:42 ` Lennart Poettering
2010-02-21 10:06 ` Kai Vehmanen
[not found] ` <20100221202144.GG31800@tango.0pointer.de>
2010-05-04 2:31 ` Raymond Yau
2010-02-17 15:39 ` Lennart Poettering
2010-02-17 15:36 ` Lennart Poettering
2010-02-17 15:35 ` Lennart Poettering [this message]
2010-02-01 22:10 ` Kai Vehmanen
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