Re: XFS write speed drop

[Nathan Scott]

On Fri, May 19, 2006 at 11:34:28AM +0200, Jan Engelhardt wrote:
> Hello,

Hi Jan,

> I have noticed that after an upgrade from 2.6.16-rcX -> 2.6.17-rc4, writes 
> to one (hdc) xfs filesystem have become significantly slower (factor 6 to 

Buffered writes?  Direct writes?  Sync writes?  Log writes?
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.

thanks!

-- 
Nathan
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