From: Marcin Dalecki <martin@dalecki.de>
To: Jaroslav Kysela <perex@suse.cz>
Cc: Hannu Savolainen <hannu@opensound.com>,
Lee Revell <rlrevell@joe-job.com>, Takashi Iwai <tiwai@suse.de>,
linux-sound@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [OT] ALSA userspace API complexity
Date: Tue, 10 Jan 2006 21:13:31 +0100 [thread overview]
Message-ID: <720AF6CA-E42F-4ABC-9FEF-545D1B3A9F8B@dalecki.de> (raw)
In-Reply-To: <Pine.LNX.4.61.0601101455140.10330@tm8103.perex-int.cz>
On 2006-01-10, at 15:08, Jaroslav Kysela wrote:
> On Tue, 10 Jan 2006, Hannu Savolainen wrote:
>
>> On Tue, 10 Jan 2006, Jaroslav Kysela wrote:
>>
>>> Overloading interrupt handlers with extra things is evil (and I
>>> bet you're
>>> mixing samples in the interrupt handler). Even the network stack
>>> uses
>>> interrupts only for DMA management and not for any extra operations.
>> You mean it's evil because nobody else is doing it? Then it must be
>> evil or rather voodoo.
>
> No, I mean that it's quite obvious bad design, because you might
> increase
> interrupt latencies for other drivers.
"Becasue you might" is a bad argument. Either you do or you don't. My
guess is that you don't
becase the amount of data to be handled is absymally small. (Come one
48kBaud is not much...)
And BTW. good luck trying to convince the /dev/random gang that it
isn't good for performance
what they are doing on the IRQ path...
Marcin Dalecki
next prev parent reply other threads:[~2006-01-10 20:14 UTC|newest]
Thread overview: 293+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-26 15:08 [2.6 patch] schedule obsolete OSS drivers for removal Adrian Bunk
2005-07-26 15:41 ` Jesper Juhl
2005-07-26 15:46 ` Adrian Bunk
2005-07-26 15:41 ` Thomas Sailer
2005-07-26 15:48 ` Jeff Garzik
2005-07-26 16:04 ` Adrian Bunk
2005-07-26 16:49 ` Lee Revell
2005-07-26 17:49 ` John W. Linville
2005-07-26 17:03 ` Gene Heskett
2005-07-26 18:13 ` Adrian Bunk
2005-07-27 3:19 ` Gene Heskett
2005-07-26 15:51 ` Lee Revell
2005-07-26 15:57 ` Jeff Garzik
2005-07-26 16:02 ` Lee Revell
2005-07-27 18:24 ` Adrian Bunk
2005-07-27 20:31 ` John W. Linville
2005-07-27 20:43 ` Jeff Garzik
2005-07-28 14:00 ` Alan Cox
2005-07-28 13:43 ` Jaroslav Kysela
2005-07-28 14:15 ` Adrian Bunk
2006-01-03 13:14 ` Adrian Bunk
2005-07-26 16:30 ` Adrian Bunk
2005-07-26 16:17 ` Andrew Haninger
2005-07-31 19:29 ` Adrian Bunk
2005-07-26 16:27 ` Zach Brown
2005-07-26 21:41 ` Krzysztof Halasa
2005-07-26 23:38 ` Zoran Dzelajlija
2005-07-27 23:28 ` Lee Revell
2005-07-27 23:58 ` Rogério Brito
2005-07-28 8:09 ` Takashi Iwai
2005-07-31 19:36 ` Adrian Bunk
2005-07-27 18:39 ` Kyle McMartin
2005-07-28 3:01 ` [parisc-linux] " Randolph Chung
2005-07-28 14:14 ` Adrian Bunk
2005-07-28 15:04 ` Thorsten Knabe
2005-07-28 15:46 ` Adrian Bunk
2005-07-28 18:33 ` [Alsa-devel] " Lee Revell
2005-07-29 6:52 ` Jaroslav Kysela
2005-07-29 15:16 ` Adrian Bunk
2005-07-29 15:58 ` Thorsten Knabe
2005-07-31 19:39 ` Adrian Bunk
2005-08-01 14:26 ` Andrew Haninger
2005-08-02 0:13 ` Thorsten Knabe
2005-08-02 5:05 ` Lee Revell
2005-08-02 12:59 ` James Courtier-Dutton
2005-08-02 15:55 ` Thorsten Knabe
2005-07-31 13:38 ` James Courtier-Dutton
2006-01-03 13:21 ` Andi Kleen
2006-01-03 13:47 ` Alistair John Strachan
2006-01-03 13:52 ` Andi Kleen
2006-01-03 13:58 ` David Lang
2006-01-03 14:33 ` Alistair John Strachan
2006-01-03 14:34 ` Alistair John Strachan
2006-01-03 14:01 ` Alistair John Strachan
2006-01-03 18:24 ` Lee Revell
[not found] ` <mailman.1136300646.6679.linux-kernel2news@redhat.com>
2006-01-04 11:13 ` Pete Zaitcev
2006-01-04 11:16 ` Jaroslav Kysela
2006-01-03 14:38 ` Jan Engelhardt
2006-01-03 14:41 ` Alistair John Strachan
2006-01-03 14:50 ` Jan Engelhardt
2006-01-03 15:22 ` Alistair John Strachan
2006-01-03 16:05 ` Tomasz Torcz
2006-01-03 16:29 ` Alistair John Strachan
2006-01-03 17:03 ` Olivier Galibert
2006-01-03 17:16 ` Alistair John Strachan
2006-01-03 19:24 ` Olivier Galibert
2006-01-03 19:37 ` Adrian Bunk
2006-01-03 21:40 ` Olivier Galibert
2006-01-03 23:10 ` Tomasz Kłoczko
2006-01-04 0:33 ` Thomas Sailer
2006-01-04 1:48 ` Olivier Galibert
2006-01-04 9:03 ` Jan Engelhardt
2006-01-04 9:37 ` [OT] ALSA userspace API complexity Alistair John Strachan
[not found] ` <mailman.1136368805.14661.linux-kernel2news@redhat.com>
2006-01-04 11:00 ` Pete Zaitcev
2006-01-04 11:35 ` Jaroslav Kysela
2006-01-04 11:47 ` Pete Zaitcev
2006-01-04 14:23 ` Alistair John Strachan
2006-01-05 11:41 ` Olivier Galibert
2006-01-05 12:01 ` Tomasz Kłoczko
2006-01-05 12:23 ` Jaroslav Kysela
2006-01-05 14:21 ` Olivier Galibert
2006-01-05 14:56 ` [parisc-linux] " Alan Cox
2006-01-05 21:14 ` Jan Engelhardt
2006-01-05 15:07 ` Tomasz Kłoczko
2006-01-05 16:14 ` Takashi Iwai
2006-01-05 17:19 ` Marcin Dalecki
2006-01-05 20:13 ` Tomasz Kłoczko
2006-01-07 14:32 ` Takashi Iwai
2006-01-08 2:03 ` Olivier Galibert
2006-01-08 2:26 ` Martin Drab
2006-01-08 13:21 ` Olivier Galibert
2006-01-08 13:32 ` Jaroslav Kysela
2006-01-08 23:18 ` Pavel Machek
2006-01-09 0:33 ` [Alsa-devel] " Hannu Savolainen
2006-01-09 12:24 ` Takashi Iwai
2006-01-09 17:49 ` Thierry Vignaud
2006-01-08 9:42 ` Jaroslav Kysela
2006-01-08 13:04 ` Olivier Galibert
2006-01-08 13:23 ` Jaroslav Kysela
2006-01-08 13:38 ` Marcin Dalecki
2006-01-09 0:30 ` [Alsa-devel] " Hannu Savolainen
2006-01-05 23:06 ` Hannu Savolainen
2006-01-05 23:39 ` Lee Revell
2006-01-05 23:56 ` Hannu Savolainen
2006-01-06 0:03 ` Lee Revell
2006-01-05 23:40 ` Lee Revell
2006-01-05 23:59 ` Hannu Savolainen
2006-01-06 15:03 ` Stefan Smietanowski
2006-01-06 15:48 ` Erik Mouw
2006-01-06 18:37 ` Lee Revell
2006-01-10 9:43 ` Jaroslav Kysela
2006-01-10 13:42 ` Hannu Savolainen
2006-01-10 14:08 ` Jaroslav Kysela
2006-01-10 14:17 ` Hannu Savolainen
2006-01-10 20:13 ` Marcin Dalecki [this message]
2006-01-06 0:14 ` Marcin Dalecki
2006-01-06 0:29 ` Martin Drab
2006-01-06 0:57 ` Marcin Dalecki
2006-01-06 1:49 ` Martin Drab
2006-01-06 1:21 ` Zan Lynx
2006-01-06 15:17 ` Stefan Smietanowski
2006-01-09 23:55 ` jerome lacoste
2006-01-10 2:29 ` Stefan Smietanowski
2006-01-06 3:14 ` Edgar Toernig
2006-01-06 3:33 ` Hannu Savolainen
2006-01-06 11:34 ` Florian Schmidt
2006-01-06 7:47 ` Jan Engelhardt
2006-01-07 14:45 ` Takashi Iwai
[not found] ` <Pine.LNX.4.61.0601080225500.17252@zeus.compusonic.fi>
2006-01-08 9:24 ` [Alsa-devel] " Jaroslav Kysela
2006-01-09 13:05 ` René Rebe
2006-01-09 15:10 ` Hannu Savolainen
2006-01-09 17:12 ` René Rebe
2006-01-09 21:58 ` David Lang
2006-01-09 23:20 ` John Rigg
2006-01-09 23:21 ` David Lang
2006-01-10 0:16 ` John Rigg
2006-01-10 0:29 ` David Lang
2006-01-10 0:44 ` Alan Cox
2006-01-10 1:56 ` Lee Revell
2006-01-10 1:27 ` John Rigg
2006-01-10 1:02 ` John Rigg
2006-01-10 0:48 ` Hannu Savolainen
2006-01-10 2:00 ` John Rigg
2006-01-10 2:17 ` Hannu Savolainen
[not found] ` <Pine.LNX.4.61.0601090010090.31763@zeus.compusonic.fi>
2006-01-10 10:51 ` Jaroslav Kysela
[not found] ` <Pine.LNX.4.61.0601101550390.24146@zeus.compusonic.fi>
2006-01-10 14:17 ` Jaroslav Kysela
2006-01-10 14:39 ` Adam Tlałka
2006-01-05 18:56 ` Lee Revell
2006-01-05 22:39 ` Joern Nettingsmeier
2006-01-05 23:44 ` Tomasz Kłoczko
2006-01-05 23:49 ` Olivier Galibert
2006-01-06 0:22 ` Joern Nettingsmeier
2006-01-06 1:30 ` Olivier Galibert
2006-01-06 2:20 ` Hannu Savolainen
2006-01-10 9:54 ` Jaroslav Kysela
2006-01-10 13:50 ` Hannu Savolainen
2006-01-06 0:00 ` Marcin Dalecki
2006-01-05 12:47 ` Leonard Milcin Jr.
2006-01-04 12:13 ` [2.6 patch] schedule obsolete OSS drivers for removal Joern Nettingsmeier
2006-01-04 12:35 ` Andi Kleen
2006-01-04 12:41 ` Jaroslav Kysela
2006-01-04 17:31 ` Alistair John Strachan
2006-01-04 17:48 ` Takashi Iwai
2006-01-05 6:42 ` Lee Revell
2006-01-03 18:28 ` Lee Revell
2006-01-03 19:30 ` Thomas Sailer
2006-01-03 19:37 ` Jaroslav Kysela
2006-01-03 19:56 ` Thomas Sailer
2006-01-03 20:06 ` Jaroslav Kysela
2006-01-04 0:23 ` Thomas Sailer
2006-01-03 22:39 ` James Courtier-Dutton
2006-01-03 20:22 ` Takashi Iwai
2006-01-03 20:37 ` Tomasz Torcz
2006-01-03 20:44 ` Takashi Iwai
2006-01-03 20:56 ` Jesper Juhl
2006-01-03 21:56 ` Adrian Bunk
2006-01-03 22:11 ` Jesper Juhl
2006-01-04 11:46 ` Takashi Iwai
2006-01-04 14:46 ` Jan Engelhardt
2006-01-04 16:43 ` Marcin Dalecki
2006-01-05 10:57 ` Jan Engelhardt
2006-01-05 12:44 ` Marcin Dalecki
2006-01-05 18:33 ` Lee Revell
2006-01-05 20:03 ` Marcin Dalecki
2006-01-05 20:05 ` Lee Revell
2006-01-05 20:18 ` Marcin Dalecki
2006-01-05 20:28 ` Lee Revell
2006-01-05 20:32 ` Marcin Dalecki
2006-01-05 20:39 ` Lee Revell
2006-01-05 20:32 ` Lee Revell
2006-01-05 20:54 ` Marcin Dalecki
2006-01-05 21:01 ` Lee Revell
2006-01-05 21:43 ` Marcin Dalecki
2006-01-05 21:47 ` Lee Revell
2006-01-05 23:35 ` Jesper Juhl
2006-01-06 0:04 ` Marcin Dalecki
2006-01-06 0:08 ` Jesper Juhl
2006-01-06 1:36 ` Hannu Savolainen
2006-01-06 9:54 ` James Courtier-Dutton
2006-01-06 13:37 ` Hannu Savolainen
2006-01-06 10:34 ` Gabor Gombas
2006-01-06 12:48 ` Hannu Savolainen
2006-01-07 14:09 ` Takashi Iwai
2006-01-07 14:57 ` Marcin Dalecki
2006-01-08 0:21 ` Hannu Savolainen
2006-01-06 2:40 ` Diego Calleja
2006-01-06 14:57 ` Olivier Galibert
2006-01-06 20:26 ` Jaroslav Kysela
2006-01-07 0:40 ` Marcin Dalecki
2006-01-07 0:56 ` Olivier Galibert
2006-01-05 23:19 ` Hannu Savolainen
2006-01-05 23:33 ` Lee Revell
2006-01-06 13:20 ` caszonyi
2006-01-06 13:43 ` James Courtier-Dutton
2006-01-06 18:24 ` Lee Revell
2006-01-06 18:27 ` Lee Revell
2006-01-04 20:12 ` Kyle Moffett
2006-01-04 22:25 ` Olivier Galibert
2006-01-03 22:13 ` Tomasz Torcz
2006-01-03 23:10 ` Adrian Bunk
2006-01-03 23:51 ` Tomasz Kłoczko
2006-01-04 0:03 ` Adrian Bunk
2006-01-04 0:46 ` Tomasz Kłoczko
2006-01-04 1:01 ` Adrian Bunk
2006-01-04 2:51 ` Tomasz Kłoczko
2006-01-04 8:50 ` Alan Cox
2006-01-04 13:21 ` Greg Louis
2006-01-04 14:41 ` Adrian Bunk
2006-01-04 10:37 ` tapas
2006-01-04 17:28 ` Alistair John Strachan
2006-01-05 7:14 ` Jan Engelhardt
2006-01-04 17:54 ` Takashi Iwai
2006-01-04 18:17 ` Florian Schmidt
2006-01-04 19:28 ` Marcin Dalecki
2006-01-04 19:52 ` Florian Schmidt
2006-01-05 7:11 ` Jan Engelhardt
2006-01-05 11:15 ` Takashi Iwai
2006-01-05 21:20 ` Jim Crilly
2006-01-05 7:11 ` Lee Revell
2006-01-05 19:09 ` Edgar Toernig
2006-01-05 19:29 ` Lee Revell
2006-01-05 20:19 ` Lee Revell
2006-01-05 21:05 ` Edgar Toernig
2006-01-05 21:10 ` Lee Revell
2006-01-05 20:24 ` Edgar Toernig
2006-01-05 20:29 ` Lee Revell
2006-01-05 7:16 ` Lee Revell
2006-01-05 11:43 ` Florian Schmidt
2006-01-05 17:48 ` Lee Revell
2006-01-08 21:07 ` Ville Herva
2006-01-08 21:44 ` Lee Revell
2006-01-09 8:16 ` Ville Herva
2006-01-09 13:52 ` Lee Revell
2006-01-09 14:22 ` Ville Herva
2006-01-09 15:18 ` Lee Revell
2006-01-09 16:21 ` Ville Herva
2006-01-09 16:22 ` Lee Revell
2006-01-05 18:36 ` Lee Revell
2006-01-05 18:47 ` Tomasz Torcz
2006-01-05 19:10 ` Lee Revell
2006-01-05 19:15 ` Florian Schmidt
2006-01-04 0:28 ` Stefan Smietanowski
2006-01-04 1:38 ` Tomasz Kłoczko
2006-01-04 9:48 ` Stefan Smietanowski
2006-01-05 3:03 ` Peter Bortas
2006-01-05 7:13 ` Jan Engelhardt
2006-01-05 7:19 ` Lee Revell
2006-01-05 8:41 ` Stefan Smietanowski
2006-01-05 9:57 ` Peter Bortas
2006-01-03 17:09 ` Jan Engelhardt
[not found] <4uzow-1g5-13@gated-at.bofh.it>
[not found] ` <5r0aY-2If-41@gated-at.bofh.it>
[not found] ` <5r3Ca-88G-81@gated-at.bofh.it>
[not found] ` <5reGV-6YD-23@gated-at.bofh.it>
[not found] ` <5reGV-6YD-21@gated-at.bofh.it>
[not found] ` <5rf9X-7yf-25@gated-at.bofh.it>
2006-01-04 11:56 ` [OT] ALSA userspace API complexity Patrizio Bassi
2006-01-04 18:07 ` Florian Schmidt
2006-01-04 18:46 ` Alistair John Strachan
2006-01-05 18:59 ` Lee Revell
2006-01-05 20:06 ` Patrizio Bassi
2006-01-05 20:11 ` Lee Revell
2006-01-05 20:47 ` Patrizio Bassi
[not found] <5rdrx-4Yl-43@gated-at.bofh.it>
2006-01-05 14:01 ` Heikki Orsila
2006-01-05 14:24 ` Jaroslav Kysela
2006-01-05 14:45 ` Heikki Orsila
2006-01-10 9:22 ` Jaroslav Kysela
2006-01-10 11:50 ` Heikki Orsila
2006-01-05 14:51 ` Olivier Galibert
2006-01-05 15:26 ` Alexander E. Patrakov
2006-01-05 15:30 ` Jaroslav Kysela
2006-01-05 16:01 ` Alexander E. Patrakov
2006-01-05 18:11 ` Florian Schmidt
2006-01-05 15:33 ` Jaroslav Kysela
2006-01-05 16:48 ` Marcin Dalecki
2006-01-05 15:27 ` Heikki Orsila
2006-01-05 14:49 ` Alistair John Strachan
2006-01-08 7:19 linux
2006-01-08 22:08 ` Hannu Savolainen
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