Re: OSDL aio-stress results on latest kernels show buffered random read issue

[William Lee Irwin III]

On Wed, Sep 29, 2004 at 04:29:08PM -0700, Judith Lebzelter wrote:
> There seems to be an issue with the reads.  Usually, reads
> should be at least as fast as writes of the same type.
> Also, there seems to be a substantial drop-off in the performance
> of AIO buffered-random writes in the mm kernels. (14% on 2CPU,
> 40% on 4CPU)

Okay, is it cpu time or idle/iowait? If it's cpu time, where do
profiles show it appears?


-- wli
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