Re: ext3 IO latency measurements (was: Linux 2.6.29)

Arjan van de Ven
2009-03-26T14:26:26Z

On Thu, 26 Mar 2009 12:08:15 +0100
Jens Axboe <jens.axboe@oracle.com> wrote:
>
> Did you capture the trace of the long delays in the read test case? It
> can be two things, at least. One is that each little read takes much
> longer than it should, the other is that we get stuck waiting on a
> dirty page and hence that slows down the reads a lot.
>

would be interesting to run latencytop during such runs...

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Arjan van de Ven Intel Open Source Technology Centre
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