Messages in this thread | | | Date | Sun, 25 Jul 2004 10:11:40 +0200 | From | Andreas Haumer <> | Subject | Re: clearing filesystem cache for I/O benchmarks |
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Hi!
Benjamin Rutt wrote: > How can I purge all of the kernel's filesystem caches, so I can trust > that my I/O (read) requests I'm trying to benchmark bypass the kernel > filesystem cache?
Some time ago I was looking for that, too, and found "cfree". Have a look at <http://gizmolabs.org/~andrew/andrewweb/project.php?pid=3&tab=0>
It's a small utility and kernel module for linux-2.4 written by Andrew de los Reyes. It allows to clear portions of the buffer cache (e.g. for a complete sub-directory). I haven't analyzed it so I can't say if it does things correctly, though.
HTH
- - andreas
- -- Andreas Haumer | mailto:andreas@xss.co.at *x Software + Systeme | http://www.xss.co.at/ Karmarschgasse 51/2/20 | Tel: +43-1-6060114-0 A-1100 Vienna, Austria | Fax: +43-1-6060114-71 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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