From: Rik van Riel <riel@conectiva.com.br>
To: Bill Davidsen <davidsen@tmr.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] IO wait accounting
Date: Thu, 9 May 2002 16:08:16 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0205091607400.7447-100000@duckman.distro.conectiva> (raw)
In-Reply-To: <Pine.LNX.3.96.1020509095715.7914B-100000@gatekeeper.tmr.com>
On Thu, 9 May 2002, Bill Davidsen wrote:
> I have been simply counting WaitIO ticks when there is (a) no runable
> process in the system, and (b) at least one process blocked for disk i/o,
> either page or program. And instead of presenting it properly I just
> stuffed it in a variable and read it from kmem.
OK, how did you measure this ?
And should we measure read() waits as well as page faults or
just page faults ?
regards,
Rik
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next prev parent reply other threads:[~2002-05-09 19:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-09 0:55 Rik van Riel
2002-05-09 14:30 ` Bill Davidsen
2002-05-09 19:08 ` Rik van Riel [this message]
2002-05-12 19:05 ` Zlatko Calusic
2002-05-12 21:14 ` Rik van Riel
2002-05-13 11:40 ` BALBIR SINGH
2002-05-13 13:58 ` Zlatko Calusic
2002-05-13 14:32 ` Rik van Riel
2002-05-13 11:45 ` Zlatko Calusic
2002-05-13 13:34 ` Rik van Riel
2002-05-13 16:08 ` Bill Davidsen
2002-05-14 19:49 ` Kurtis D. Rader
2002-05-14 21:38 ` Rik van Riel
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