From: Matthias Schniedermeyer <ms@citd.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: XFS doesn't correctly account for IO-Wait for directory reading
Date: Wed, 23 Jan 2008 15:24:42 +0100 [thread overview]
Message-ID: <20080123142442.GA12440@citd.de> (raw)
In-Reply-To: <20080123121741.GA24405@infradead.org>
On 23.01.2008 12:17, Christoph Hellwig wrote:
>
> Try this one-liner patch which should give you much better I/O wait
> reporting. There's some more I/O waits hidden in the log code, but to
> fix this we'd need to dig into the sv_t abstraction. Given that it only
> has four users left I'm probably going to simply remove it and fix the
> I/O wait accounting while I'm at it.
Either with 2.6.23.12 & 2.6.24-git-HEAD, and the shown line changed, the
%wa reported by top is still at 0.0
Bis denn
--
Real Programmers consider "what you see is what you get" to be just as
bad a concept in Text Editors as it is in women. No, the Real Programmer
wants a "you asked for it, you got it" text editor -- complicated,
cryptic, powerful, unforgiving, dangerous.
next prev parent reply other threads:[~2008-01-23 14:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-23 11:00 XFS doesn't correctly account for IO-Wait for directory reading Matthias Schniedermeyer
2008-01-23 12:17 ` Christoph Hellwig
2008-01-23 14:24 ` Matthias Schniedermeyer [this message]
2008-01-24 0:31 ` David Chinner
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