From: Rik van Riel <riel@conectiva.com.br>
To: Zlatko Calusic <zlatko.calusic@iskon.hr>
Cc: Bill Davidsen <davidsen@tmr.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] IO wait accounting
Date: Sun, 12 May 2002 18:14:01 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0205121812500.32261-100000@imladris.surriel.com> (raw)
In-Reply-To: <87bsbl9ogw.fsf@atlas.iskon.hr>
On Sun, 12 May 2002, Zlatko Calusic wrote:
> Rik van Riel <riel@conectiva.com.br> writes:
> >
> > And should we measure read() waits as well as page faults or
> > just page faults ?
>
> Definitely both.
OK, I'll look at a way to implement these stats so that
every IO wait counts as iowait time ... preferably in a
way that doesn't touch the code in too many places ;)
> Somewhere on the web was a nice document explaining
> how Solaris measures iowait%, I read it few years ago and it was a
> great stuff (quite nice explanation).
>
> I'll try to find it, as it could be helpful.
Please, it would be useful to get our info compatible with
theirs so sysadmins can read their statistics the same on
both systems.
kind regards,
Rik
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next prev parent reply other threads:[~2002-05-12 21:14 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
2002-05-12 19:05 ` Zlatko Calusic
2002-05-12 21:14 ` Rik van Riel [this message]
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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