23 Dec
2010
23 Dec
'10
7:19 a.m.
Antonello Piemonte wrote:
Hello
I have read that under Solaris one can use DTrace to get I/O request size distribution on a global scale (also on a per process/pid basis). See for example
http://prefetch.net/articles/observeiodtk.html
Can anyone recommend an alternative to get similar information under CentOS? I looked into dtrace for linux but it seems still work in progress, even putting aside CDDL issues ...
Maybe the average request size from iostat -x could supply part of the /global/ piece?
--
Charles Polisher