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From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: Dave Hansen <haveblue@us.ibm.com>, Alexander Viro <viro@math.psu.edu>
Cc: Andrew Morton <akpm@zip.com.au>,
	linux-kernel@vger.kernel.org,
	Linus Torvalds <torvalds@transmeta.com>
Subject: Re: locking in sync_old_buffers
Date: Mon, 22 Apr 2002 15:25:37 -0700	[thread overview]
Message-ID: <8900000.1019514337@flay> (raw)
In-Reply-To: <3CC47A27.4000803@us.ibm.com>

>   0.09%  8.1% 4598us(9648us)  105us( 231us)(0.00%)        37 91.9%  8.1%     0%    sync_old_buffers+0x1c

16-way NUMA-Q kernel compile:

0.64% 20.0%   38ms(  54ms)   93us(  93us)(0.00%)         5 80.0% 20.0%    0%
sync_old_buffers+0x20

Hold times - ouch. 

M.


      parent reply	other threads:[~2002-04-22 21:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-22 21:01 locking in sync_old_buffers Dave Hansen
2002-04-22 22:08 ` Andrew Morton
2002-04-22 22:23   ` Dave Hansen
2002-04-22 22:28     ` Linus Torvalds
2002-04-22 22:50       ` Andrew Morton
2002-04-23  1:31   ` Alexander Viro
2002-04-23 18:29     ` Dave Hansen
2002-04-22 22:25 ` Martin J. Bligh [this message]

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