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 ... > > http://www.crisp.demon.co.uk/tools.html Maybe the average request size from iostat -x could supply part of the /global/ piece? -- Charles Polisher