Originally posted by: karunanidhis

Hi !
How do I find "disk - Bytes read" per process ?
Note: I don't need to disk i/o (number of transactions). What I need is the "Bytes read" by process. I'm dealing with a huge spike in " Kilo Bytes Read" in the "iostat" output. I need to find out which process is initiating this spike in KB read. If I sort the processes by mere disk/io, few processes show up but there is no Spike that can I see (these processes always have the same disk i/o).

Thanks in advance

• K

#AIX-Forum

Originally posted by: j.gann

I can point you in 2 directions:

• probevue on aix6+ (system call entry/exit probes for the "usual suspects" like read, write, ....)

on linux you'd use systemtap

• filemon combined with fuser (fm. shows which files the io is done to, fuser which process has the file open), lsof also might come in handy....

jg
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