Linux disk IO load breakdown, by filesystem path and/or process?

Posted by Ryan B. Lynch on Server Fault See other posts from Server Fault or by Ryan B. Lynch
Published on 2009-06-12T20:50:50Z Indexed on 2010/04/29 10:57 UTC
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disk

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load

Does anyone have experience with a tool that can provide an indication of disk IO load by filesystem path.

I use to 'iostat' utility, frequently, to learn how much disk activity is taking place on a Linux host. 'iostat' provides a per-device breakdown, so you can see activity on a particular block device. But it doesn't go any deeper than that--you can't, for instance, query the write load generated by 'httpd' in the directory '/var/log/httpd/'.

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