From: Jens Axboe <axboe@suse.de>
To: Takashi Ikebe <ikebe.takashi@lab.ntt.co.jp>
Cc: Andrew Morton <akpm@osdl.org>,
andrea@suse.de, linux-kernel@vger.kernel.org
Subject: Re: Real-time problem due to IO congestion.
Date: Fri, 10 Jun 2005 09:21:30 +0200 [thread overview]
Message-ID: <20050610072130.GC29591@suse.de> (raw)
In-Reply-To: <42A93D85.4060005@lab.ntt.co.jp>
(please don't top post)
On Fri, Jun 10 2005, Takashi Ikebe wrote:
>
> I see.
> The program which I tested is just sample, and I wanted to know the
> phenomena is spec or bug.
> I also understand that this problem is spec, and need to apply some
> buffering to such applications.
Additionally, following up on Andrew, even with prioritized request
allocations you could get equally long stuck if you just had lots of
high prio allocaters queueing io. So rethinking the setup is definitely
good advice.
--
Jens Axboe
next prev parent reply other threads:[~2005-06-10 7:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-10 4:55 Real-time problem due to IO congestion Takashi Ikebe
2005-06-10 6:24 ` Jens Axboe
2005-06-10 7:49 ` Takashi Ikebe
2005-06-10 18:26 ` Lee Revell
2005-06-10 6:42 ` Andrew Morton
2005-06-10 7:13 ` Takashi Ikebe
2005-06-10 7:21 ` Jens Axboe [this message]
2005-06-10 20:25 ` Helge Hafting
2005-06-13 1:46 ` Takashi Ikebe
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