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eserver and other IBM related questions are also on topic.
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There is any way to list processes' I/O usage? I'm not interested in overall I/O statistic, vmstat and sar already do that for me. It seems there is a lack of commands to get process level detail I/O. What I'm looking for is someting like:
# ps aux | head -1 ; ps aux | tail +2 | sort -nrk3 | head
USER PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 73764 5.3 0.0 384 384 - A Aug 26 3018:25 wait
root 471150 5.2 23.0 1871336 1874984 - A 17:19:50 414:31 dsmserv quiet
root 65568 5.2 0.0 384 384 - A Aug 26 2919:28 wait
root 57372 5.2 0.0 384 384 - A Aug 26 2918:16 wait
root 8196 4.9 0.0 384 384 - A Aug 26 2753:25 wait
root 69666 4.8 0.0 384 384 - A Aug 26 2705:49 wait
root 61470 4.8 0.0 384 384 - A Aug 26 2721:21 wait
root 77862 4.6 0.0 384 384 - A Aug 26 2618:47 wait
root 53274 4.5 0.0 384 384 - A Aug 26 2541:19 wait
root 229536 3.5 0.0 984 972 - A Aug 26 1957:23 /usr/sbin/portma