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From: Damien Wyart <damien.wyart@free.fr>
To: David Chinner <dgc@sgi.com>
Cc: Torsten Kaiser <just.for.lkml@googlemail.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: Tue, 20 Nov 2007 14:16:17 +0100	[thread overview]
Message-ID: <20071120131617.GA24166@localhost.localdomain> (raw)
In-Reply-To: <20071108003811.GP995458@sgi.com>

Hello,

> > > 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>

* David Chinner <dgc@sgi.com> [2007-11-08 11:38]:
> Great - thanks for reporting the problem and testing the fix.

This patch has not yet made its way into 2.6.24 (rc3). Is it intended?
Maybe the fix can wait for 2.6.25, but wanted to make sure...

-- 
Damien Wyart

  reply	other threads:[~2007-11-20 13:16 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200710220822.52370.maximlevitsky@gmail.com>
     [not found] ` <200710221258.11384.maximlevitsky@gmail.com>
     [not found]   ` <393051953.24752@ustc.edu.cn>
     [not found]     ` <200710221421.21439.maximlevitsky@gmail.com>
     [not found]       ` <393126119.26275@ustc.edu.cn>
     [not found]         ` <1193134027.7406.1.camel@twins>
     [not found]           ` <20071023115620.GA5678@mail.ustc.edu.cn>
2007-10-23 11:56             ` [PATCH] reiserfs: don't drop PG_dirty when releasing sub-page-sized dirty file Fengguang Wu
2007-10-23 14:10               ` Chris Mason
     [not found]                 ` <20071023144014.GA6174@mail.ustc.edu.cn>
2007-10-23 14:40                   ` Fengguang Wu
2007-10-23 14:40                   ` Fengguang Wu
2007-10-23 11:56             ` Fengguang Wu
     [not found]       ` <393056632.00561@ustc.edu.cn>
     [not found]         ` <200710221505.35397.maximlevitsky@gmail.com>
     [not found]           ` <20071022131045.GA5357@mail.ustc.edu.cn>
     [not found]             ` <393060478.03650@ustc.edu.cn>
     [not found]               ` <64bb37e0710310822r5ca6b793p8fd97db2f72a8655@mail.gmail.com>
     [not found]                 ` <393903856.06449@ustc.edu.cn>
     [not found]                   ` <64bb37e0711011120i63cdfe3ci18995d57b6649a8@mail.gmail.com>
     [not found]                     ` <E1Inljm-0002DW-CL@localhost>
2007-11-02  1:54                       ` writeout stalls in current -git Fengguang Wu
2007-11-02  7:42                         ` Torsten Kaiser
     [not found]                           ` <E1InrKN-0000MK-G5@localhost>
2007-11-02  7:52                             ` Fengguang Wu
2007-11-02 17:47                               ` Torsten Kaiser
2007-11-02  7:52                             ` Fengguang Wu
2007-11-02  1:54                       ` Fengguang Wu
     [not found]                     ` <64bb37e0711011200n228e708eg255640388f83da22@mail.gmail.com>
     [not found]                       ` <E1InmAI-0003ME-2i@localhost>
2007-11-02  2:21                         ` Fengguang Wu
2007-11-02  2:21                         ` Fengguang Wu
2007-11-02  7:50                           ` Torsten Kaiser
2007-11-02 10:15                         ` Peter Zijlstra
     [not found]                           ` <E1IntqD-0001dK-OE@localhost>
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
2007-11-02 19:22                           ` 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
     [not found]                             ` <E1IpKZ4-0004je-Lb@localhost>
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
2007-11-20 13:16                                           ` Damien Wyart [this message]
2007-11-20 21:09                                             ` David Chinner

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