Thanks a lot for the tip, I didn't know this tool.<br><br>Sébastien<br><br><div class="gmail_quote">2010/11/22 Gabor Gombas <span dir="ltr"><<a href="mailto:gombasg@digikabel.hu">gombasg@digikabel.hu</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">On Mon, Nov 22, 2010 at 11:03:15AM +0100, Sébastien Michel wrote:<br>
<br>
</div><div class="im">> Since strace doesn't help to see what mmap reads on SELECT, so I made a test<br>
> on NFS server.<br>
<br>
</div>On Linux you should use blktrace. NFS is a non-POSIX filesystem, and it<br>
may show quite different behavior compared to a POSIX filesystem on a<br>
real block device.<br>
<font color="#888888"><br>
Gabor<br>
</font><div><div></div><div class="h5">----<br>
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