Re: [PATCH] superbh, fractured blocks, and grouped io

Joel Becker (Joel.Becker@oracle.com)
Tue, 15 Oct 2002 12:33:49 -0700

On Tue, Oct 15, 2002 at 09:44:23AM +0200, Jens Axboe wrote:
> We don't want to make them too large anyway, and I think that 64k-1 is
> more than enough. Maybe it would even be better to simply use an even
> 32kb. Consider someone writing in chunks of 64kb. It would simply suck
> to get one 65024b request followed by a 512b one.

Well, 64K-1 is really 64K-hardsect_size. In practice, it will
probably be 32K, as folks like power-of-two buffers. Some people would
claim that larger sizes (128K, 512K) can improve throughput.

Joel

-- 


Life's Little Instruction Book #356


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Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127
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