From: Christian MICHON <christian.michon@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [patch] non-blocking disk IO
Date: Tue, 4 Oct 2005 15:20:23 +0200 [thread overview]
Message-ID: <46d6db660510040620n5286abf0rf3c5fe3f738a7130@mail.gmail.com> (raw)
In-Reply-To: <43428026.20504@stanfordalumni.org>
Then all is good and I should not use (2) as a benchmark.
Thanks for clarifying :)
On 10/4/05, John Coiner <jcoiner@stanfordalumni.org> wrote:
> (1) is a parallel task -- 'tar' and 'bunzip2' run concurrently. You see
> a benefit here when one process can use the CPU while the other is
> blocked waiting for IO.
>
> (2) is a serial task. It can't benefit from non-blocking IO. 'make -j 2'
> should benefit, in cases where the host file cache is cold.
--
Christian
next prev parent reply other threads:[~2005-10-04 13:49 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-03 6:49 [Qemu-devel] [patch] non-blocking disk IO John Coiner
2005-10-03 7:09 ` Magnus Damm
2005-10-03 9:57 ` Elefterios Stamatogiannakis
2005-10-03 12:58 ` Christian MICHON
2005-10-04 7:17 ` John Coiner
2005-10-04 7:46 ` Christian MICHON
2005-10-04 8:52 ` Elefterios Stamatogiannakis
2005-10-04 9:35 ` Christian MICHON
2005-10-04 11:19 ` Christian MICHON
2005-10-04 12:22 ` Jens Axboe
2005-10-04 13:14 ` John Coiner
2005-10-04 13:20 ` Christian MICHON [this message]
2005-10-03 13:58 ` Jens Axboe
2005-10-03 22:29 ` John Coiner
2005-10-04 6:41 ` Jens Axboe
2005-10-04 1:35 ` Troy Benjegerdes
2005-10-04 3:25 ` John Coiner
2005-10-04 3:49 ` Henrik Nordstrom
2005-10-04 5:24 ` Troy Benjegerdes
2005-10-04 6:44 ` Jens Axboe
2005-10-03 18:33 ` Fabrice Bellard
2005-10-04 20:40 ` Brad Campbell
2005-10-04 23:03 ` John Coiner
2005-10-05 11:27 ` Brad Campbell
2005-10-05 14:28 ` Troy Benjegerdes
2005-11-28 22:41 ` Ryan Rempel
-- strict thread matches above, loose matches on Subject: below --
2005-10-03 12:41 John Coiner
2005-10-04 1:34 ` Troy Benjegerdes
2005-10-04 3:16 ` John Coiner
2005-10-04 14:26 ` Troy Benjegerdes
2005-10-04 22:11 ` John Coiner
2005-10-05 3:17 ` Troy Benjegerdes
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