SUMMARY:tool to show I/O stats on a per-process basis

Special thanks to

    Francisco Roque

for his prompt answer and solution and to

    Durren Dunham
    Roberto Fratelli
    Matthew Darcy

They offered me  Brendan Gregg tools for Solaris9.

http://www.brendangregg.com/psio.html <http://www.brendangregg.com/psio.html>
http://www.brendangregg.com/Perf/paper_diskubyp1.pdf
<http://www.brendangregg.com/Perf/paper_diskubyp1.pdf>
http://www.brendangregg.com/k9toolkit.html

It was just what I needed. I tried psio and prusage and found the poorly
written application
that caused  I/O bottleneck. After restarting those processes there was no io
wait at all
on that filesystem.

Original question:
=============

    Hi Gurus,
    I need a tool to show I/O stats on a per-process basis on Solaris 9.
    I'd like to identify how much I/O each process uses to find the program
causing I/O bottleneck.


Best Regards,
Eva
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