Per Process I/O usage statistics on Linux
Sep 23, 2009, 16:06 (0 Talkback[s])
(Other stories by Levent Serinol)
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"You can check if your kernel has built with I/O
account by just simply checking /proc/self/io file. If it exists
then you have I/O accounting built-in.
"There is a utility called iotop which collects these values and
shows you in like top utility. You see your processes I/O activity
with iotop utility."