monitoring per-process disk io

Andriy Gapon avg at
Thu Sep 30 18:37:37 UTC 2010

on 30/09/2010 21:02 R.P. Aditya said the following:
> I'm trying to monitor, over the long-term, per-process disk IO (a
> counter of bytes read and written per pid would be ideal).
> I currently monitor per pid cpu and memory usage using the SNMP
> Host-Resources MIB, however I don't see any oids for io (disk or
> otherwise) per oid.
> The closest I've come to finding what I want -- per-process disk IO
> stats -- is the Linux tool dstat -- something like "screenshot 3" at:
> which is the output of:
>   dstat -c --top-cpu -d --top-bio --top-latency
> would be good...iostat, vmstat don't give that sort of info...
> any suggestions or hints? 

1) top -m io
2) rolling your own customized monitoring using dtrace

Andriy Gapon

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