From: David Chinner <dgc@sgi.com>
To: Torsten Kaiser <just.for.lkml@googlemail.com>
Cc: David Chinner <dgc@sgi.com>, Fengguang Wu <wfg@mail.ustc.edu.cn>,
Peter Zijlstra <peterz@infradead.org>,
Maxim Levitsky <maximlevitsky@gmail.com>,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: writeout stalls in current -git
Date: Thu, 8 Nov 2007 11:38:11 +1100 [thread overview]
Message-ID: <20071108003811.GP995458@sgi.com> (raw)
In-Reply-To: <64bb37e0711062315jef9efd7xc2ffc11b6d6c60fa@mail.gmail.com>
On Wed, Nov 07, 2007 at 08:15:06AM +0100, Torsten Kaiser wrote:
> On 11/7/07, David Chinner <dgc@sgi.com> wrote:
> > Ok, so it's not synchronous writes that we are doing - we're just
> > submitting bio's tagged as WRITE_SYNC to get the I/O issued quickly.
> > The "synchronous" nature appears to be coming from higher level
> > locking when reclaiming inodes (on the flush lock). It appears that
> > inode write clustering is failing completely so we are writing the
> > same block multiple times i.e. once for each inode in the cluster we
> > have to write.
>
> Works for me. The only remaining stalls are sub second and look
> completely valid, considering the amount of files being removed.
....
> Tested-by: Torsten Kaiser <just.for.lkml@googlemail.com>
Great - thanks for reporting the problem and testing the fix.
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
next prev parent reply other threads:[~2007-11-08 0:38 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 6:22 100% iowait on one of cpus in current -git Maxim Levitsky
2007-10-22 9:11 ` Paolo Ornati
2007-10-22 9:43 ` Maxim Levitsky
2007-10-22 9:41 ` Peter Zijlstra
2007-10-22 9:59 ` Maxim Levitsky
2007-10-22 10:22 ` Peter Zijlstra
2007-10-22 10:40 ` Maxim Levitsky
2007-10-22 10:55 ` Fengguang Wu
2007-10-22 10:55 ` Fengguang Wu
2007-10-22 10:58 ` Maxim Levitsky
2007-10-22 11:19 ` Fengguang Wu
2007-10-22 11:19 ` Fengguang Wu
2007-10-22 12:21 ` Maxim Levitsky
2007-10-22 12:37 ` Fengguang Wu
2007-10-22 12:37 ` Fengguang Wu
2007-10-22 13:05 ` Maxim Levitsky
2007-10-22 13:10 ` Fengguang Wu
2007-10-22 13:10 ` Fengguang Wu
2007-10-22 13:28 ` Maxim Levitsky
2007-10-22 13:41 ` Fengguang Wu
2007-10-22 13:41 ` Fengguang Wu
2007-10-31 15:22 ` Torsten Kaiser
2007-11-01 7:57 ` Fengguang Wu
2007-11-01 7:57 ` Fengguang Wu
2007-11-01 18:20 ` Torsten Kaiser
2007-11-01 19:00 ` Torsten Kaiser
2007-11-02 2:21 ` writeout stalls " Fengguang Wu
2007-11-02 2:21 ` Fengguang Wu
2007-11-02 7:50 ` Torsten Kaiser
2007-11-02 10:15 ` Peter Zijlstra
2007-11-02 10:33 ` Fengguang Wu
2007-11-02 10:33 ` Fengguang Wu
2007-11-05 23:57 ` Andrew Morton
2007-11-06 10:20 ` Peter Zijlstra
2007-11-06 16:25 ` Patch tags [was writeout stalls in current -git] Jonathan Corbet
2007-11-06 17:03 ` Balbir Singh
2007-11-06 23:26 ` Adrian Bunk
2007-11-09 16:10 ` Jonathan Corbet
2007-11-09 16:19 ` Adrian Bunk
2007-11-02 19:22 ` writeout stalls in current -git Torsten Kaiser
2007-11-02 20:43 ` David Chinner
2007-11-02 21:02 ` Torsten Kaiser
2007-11-04 11:19 ` Torsten Kaiser
2007-11-05 1:45 ` David Chinner
2007-11-05 7:01 ` Torsten Kaiser
2007-11-05 18:27 ` Torsten Kaiser
2007-11-06 4:25 ` David Chinner
2007-11-06 7:10 ` Torsten Kaiser
2007-11-06 19:01 ` Peter Zijlstra
2007-11-06 20:26 ` Torsten Kaiser
2007-11-06 9:17 ` Fengguang Wu
2007-11-06 9:17 ` Fengguang Wu
2007-11-06 21:53 ` Torsten Kaiser
2007-11-06 23:31 ` David Chinner
2007-11-07 2:13 ` David Chinner
2007-11-07 7:15 ` Torsten Kaiser
2007-11-08 0:38 ` David Chinner [this message]
2007-11-20 13:16 ` Damien Wyart
2007-11-20 21:09 ` David Chinner
2007-11-02 1:54 ` Fengguang Wu
2007-11-02 1:54 ` Fengguang Wu
2007-11-02 7:42 ` Torsten Kaiser
2007-11-02 7:52 ` Fengguang Wu
2007-11-02 7:52 ` Fengguang Wu
2007-11-02 17:47 ` Torsten Kaiser
2007-10-23 7:55 ` [PATCH] reiserfs: don't drop PG_dirty when releasing sub-page-sized dirty file Fengguang Wu
2007-10-23 7:55 ` Fengguang Wu
2007-10-23 10:07 ` Peter Zijlstra
2007-10-23 11:56 ` Fengguang Wu
2007-10-23 11:56 ` Fengguang Wu
2007-10-23 14:10 ` Chris Mason
2007-10-23 14:40 ` Fengguang Wu
2007-10-23 14:40 ` Fengguang Wu
2007-10-23 10:17 ` Maxim Levitsky
2007-10-23 14:41 ` Fengguang Wu
2007-10-23 14:41 ` Fengguang Wu
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