linux-kernel - Re: Poor interactive performance with I/O loads with fsync()ing

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Message-ID: <4bac2a7e.8278e70a.5fa7.1315@mx.google.com>
Date:	Thu, 25 Mar 2010 20:31:10 -0700 (PDT)
From:	Ben Gamari <bgamari.foss@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Nick Piggin <npiggin@...e.de>
Cc:	tytso@....edu, linux-kernel@...r.kernel.org,
	Olly Betts <olly@...vex.com>,
	martin f krafft <madduck@...duck.net>
Subject: Re: Poor interactive performance with I/O loads with fsync()ing

On Wed, 17 Mar 2010 10:37:04 +0100, Ingo Molnar <mingo@...e.hu> wrote:
> 
> A call-graph profile will show the precise reason for IO latencies, and their 
> relatively likelihood.
> 
Once I get home I'll try to reproduce the issue and get a call graph. Thanks!

- Ben
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