Re: I/O size distribution?

["Geoff Galitz" <geoff@xxxxxxxxxx>]

......
>
> 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
>

You can try SystemTap:  http://sourceware.org/systemtap/

It seems to be roughly analagous to dtrace and is aimed squarly at the linux 
kernel.

 

_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos