[Ocfs2-users] Anyone have an idea how to find file i/o throughput?

[Sunil Mushran]

If a userspace process is behind the io surge, then strace should help.
But determining the process may require a bit of trial and error.

Ulf Zimmermann wrote:
> We got a remote Oracle 10g R2 standby running on OCFS2. Initial when we
> started the standby, read I/O was < 5MB/sec on average. Since then it
> has grown to over 40MB/sec (longer average, it peaks much higher). Here
> is a graph showing this:
>
> http://www.alameda.net/~ulf/dbphx01.png
>
> We also have a local standby running (on EXT3) which is not showing the
> same symptom. I am trying to find where all these reads are happening.
> Anyone have an idea how to figure that out on Linux?
>
> Ulf.
>
>
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