iotop (dtrace?)

Baptiste Daroussin bapt at
Tue Oct 25 20:50:58 UTC 2011

On Tue, Oct 25, 2011 at 10:34:39PM +0200, Stefan Bethke wrote:
> 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.

Can't 'top -mio' do the job?

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