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Date: Mon, 22 Apr 2002 15:25:37 -0700
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
Message-ID: <8900000.1019514337@flay>
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>   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.

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