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DateMon, 22 May 2006 22:36:21 +0300
FromAvi Kivity <>
SubjectRe: tuning for large files in xfs
fitzboy wrote:
> That makes sense, but how come the numbers for the large file (2TB)
> doesn't seem to match with the Avg. Seek Time that 15k drives have? Avg
> Seek Time for those drives are in the 5ms range, and I assume they
> aren't just seeking in the first couple tracks when they come up with
> that number (and Bonnie++ confirms this too). Any thoughts on why it is
> double for me when I use the drives?
>

What's your testing methodology?

You can try to measure the amount of seeks going to the disk by using
iostat, and see if that matches your test program.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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