top and then use the IO mode, will give you an idea where the issue is.
Regards
Steve
----- Original Message -----
From: "Stefan Bethke" <s...@lassitu.de>
To: <freebsd-hackers@freebsd.org>
Sent: Tuesday, October 25, 2011 9:34 PM
Subject: iotop (dtrace?)
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 <s...@lassitu.de> Fon +49 151 14070811
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