From: Andrea Arcangeli <aarcange@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>,
kvm-devel <kvm@vger.kernel.org>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool
Date: Thu, 11 Dec 2008 17:49:47 +0100 [thread overview]
Message-ID: <20081211164947.GD6809@random.random> (raw)
In-Reply-To: <49413B9C.3030703@redhat.com>
On Thu, Dec 11, 2008 at 05:11:08PM +0100, Gerd Hoffmann wrote:
> Yes. But kernel aio requires O_DIRECT, so aio users are affected
> nevertheless.
Are you sure? It surely wasn't the case...
> Havn't tested that. Could be it isn't a big problem, extra code size
> for the two modes aside.
There shouldn't be any problem.
> Kernel side looks easy, attached patch + syscall table windup in all
> archs ...
So should we depend on this?
WARNING: multiple messages have this Message-ID (diff)
From: Andrea Arcangeli <aarcange@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: kvm-devel <kvm@vger.kernel.org>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [RFC] Replace posix-aio with custom thread pool
Date: Thu, 11 Dec 2008 17:49:47 +0100 [thread overview]
Message-ID: <20081211164947.GD6809@random.random> (raw)
In-Reply-To: <49413B9C.3030703@redhat.com>
On Thu, Dec 11, 2008 at 05:11:08PM +0100, Gerd Hoffmann wrote:
> Yes. But kernel aio requires O_DIRECT, so aio users are affected
> nevertheless.
Are you sure? It surely wasn't the case...
> Havn't tested that. Could be it isn't a big problem, extra code size
> for the two modes aside.
There shouldn't be any problem.
> Kernel side looks easy, attached patch + syscall table windup in all
> archs ...
So should we depend on this?
next prev parent reply other threads:[~2008-12-11 16:49 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-05 21:21 [RFC] Replace posix-aio with custom thread pool Anthony Liguori
2008-12-05 21:21 ` [Qemu-devel] " Anthony Liguori
2008-12-06 9:03 ` Blue Swirl
2008-12-06 18:26 ` Jamie Lokier
2008-12-08 18:23 ` Anthony Liguori
2008-12-08 18:23 ` Anthony Liguori
2008-12-09 15:51 ` Gerd Hoffmann
2008-12-09 16:01 ` Anthony Liguori
2008-12-10 16:44 ` Andrea Arcangeli
2008-12-10 17:21 ` Anthony Liguori
2008-12-10 17:21 ` Anthony Liguori
2008-12-10 17:29 ` Gerd Hoffmann
2008-12-10 18:50 ` Anthony Liguori
2008-12-10 19:08 ` Andrea Arcangeli
2008-12-10 19:08 ` Andrea Arcangeli
2008-12-11 13:12 ` Andrea Arcangeli
2008-12-11 15:24 ` Gerd Hoffmann
2008-12-11 15:24 ` Gerd Hoffmann
2008-12-11 15:53 ` Andrea Arcangeli
2008-12-11 15:53 ` Andrea Arcangeli
2008-12-11 16:11 ` Gerd Hoffmann
2008-12-11 16:11 ` Gerd Hoffmann
2008-12-11 16:49 ` Andrea Arcangeli [this message]
2008-12-11 16:49 ` Andrea Arcangeli
2008-12-11 17:20 ` Gerd Hoffmann
2008-12-11 17:20 ` Gerd Hoffmann
2008-12-11 18:11 ` Andrea Arcangeli
2008-12-11 18:11 ` Andrea Arcangeli
2008-12-11 20:38 ` Gerd Hoffmann
2008-12-11 20:38 ` Gerd Hoffmann
2008-12-11 20:40 ` Anthony Liguori
2008-12-12 8:23 ` Jens Axboe
2008-12-12 8:23 ` Jens Axboe
2008-12-12 11:51 ` Andrea Arcangeli
2008-12-12 11:51 ` Andrea Arcangeli
2008-12-12 11:54 ` Jens Axboe
2008-12-12 11:54 ` Jens Axboe
2008-12-12 14:13 ` Andrea Arcangeli
2008-12-12 14:13 ` Andrea Arcangeli
2008-12-12 14:24 ` Anthony Liguori
2008-12-12 14:24 ` Anthony Liguori
2008-12-12 16:33 ` Chris Wright
2008-12-12 16:33 ` Chris Wright
2008-12-12 16:51 ` Anthony Liguori
2008-12-12 16:51 ` Anthony Liguori
2008-12-12 16:52 ` Chris Wright
2008-12-12 16:52 ` Chris Wright
2008-12-11 21:32 ` Christoph Hellwig
2008-12-12 0:27 ` Andrea Arcangeli
2008-12-12 0:27 ` Andrea Arcangeli
2008-12-11 21:30 ` Christoph Hellwig
2008-12-11 16:41 ` Anthony Liguori
2008-12-11 16:41 ` Anthony Liguori
2008-12-12 14:24 ` Andrea Arcangeli
2008-12-12 14:24 ` Andrea Arcangeli
2008-12-12 14:35 ` Anthony Liguori
2008-12-12 14:35 ` Anthony Liguori
2008-12-12 15:44 ` Andrea Arcangeli
2008-12-12 15:44 ` Andrea Arcangeli
2008-12-12 16:49 ` Anthony Liguori
2008-12-12 16:49 ` Anthony Liguori
2008-12-12 17:09 ` Andrea Arcangeli
2008-12-12 17:09 ` Andrea Arcangeli
2008-12-12 17:25 ` Anthony Liguori
2008-12-12 17:25 ` Anthony Liguori
2008-12-12 17:52 ` Andrea Arcangeli
2008-12-12 17:52 ` Andrea Arcangeli
2008-12-12 18:17 ` Anthony Liguori
2008-12-12 18:17 ` Anthony Liguori
2008-12-12 18:26 ` Andrea Arcangeli
2008-12-12 20:12 ` Gerd Hoffmann
2008-12-12 20:17 ` Anthony Liguori
2008-12-12 20:35 ` Gerd Hoffmann
2008-12-09 17:16 ` Avi Kivity
2008-12-17 14:44 ` Ian Jackson
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