Re: XFS write speed drop

From: David Chinner
Date: Mon May 22 2006 - 21:26:20 EST


On Mon, May 22, 2006 at 02:21:48PM +0200, Jan Engelhardt wrote:
> >You're a bit light on details here.
> >
> >Can you send the benchmark results themselves please? (as in,
> >the test(s) you've run that lead you to see 6-8x, and the data
> >those tests produced). Also, xfs_info output, and maybe list
> >the device driver(s) involved here too.

Jan, just out of curiousity, can you also run the tests with
barriers off and the drive write cache turned off? I would
expect the cache+barriers to be faster...

Cheers,

Dave.
--
Dave Chinner
R&D Software Enginner
SGI Australian Software Group
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