[lug] Per process I/O statistics

[Calvin Dodge]

iotop?

On 7/16/09, Steve Sullivan <sullivan at mathcom.com> wrote:
> Is there any way to see per-process I/O statistics?
> For example, top shows %CPU.  Why not reads/second and
> writes/second?
>
> There are buffering issues, but one could get a good
> approximation by counting the pread and pwrite system calls.
> Are these counts available anywhere?
>
> For that matter, is it possible to count ALL types of
> system calls for a process?
>
> I know vmstat and iostat show I/O statistics on a system wide
> basis, but I need to know the impact of individual processes.
>
> Thanks!
>
> Steve
>
>
> --
>
> ========================================
> Steve Sullivan    sullivan at mathcom.com
>
> http://www.mathcom.com
> ========================================
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