Date: Tue, 25 Oct 2011 22:34:39 +0200 From: Stefan Bethke <stb@lassitu.de> To: freebsd-hackers@freebsd.org Subject: iotop (dtrace?) Message-ID: <EEC47FD8-63E0-4F7E-8994-CCEC720C2C5B@lassitu.de>
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I've got two systems with a constantly high rate of disk I/O that sometimes seems to be overwhelmed from it. Before trying to decide if a hardware upgrade will help, I'd like to figure out which processes generate the load. I've found a couple scripts named iotop which appear to produce what I would be interested in, but they appear to require Solaris or Linux. Has someone ported over one of them, or would have a suggestion how to go about writing a custom dtrace script to gather this kind of information? I can successfully run a couple of sample dtrace scripts on these 8-stable amd64 boxes. Thanks, Stefan Solaris dtrace-based iotop: http://prefetch.net/articles/solaris.dtracetopten.html Linux /proc-based Python script: http://guichaz.free.fr/iotop/ -- Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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