Hi, I run into that question before and after goggling I found this useful
site. Actually you need a combination of commands and a little bash skills.
But an example provided is enough for me :) I hope this helps.

http://www.performancewiki.com/diskio-tuning.html

On 10/14/07, Gerald Timothy Quimpo <[EMAIL PROTECTED]> wrote:
>
> hi all,
>
> Occasionally I'd like to know which application(s) is/are using the most
> disk bandwidth.  The reason is, on my desktop and my laptop, I often
> have background jobs which do a lot of IO and I'd like to know which
> program it is exactly so I can take appropriate action if IO is slowing
> down interactivity too much.
>
> Generally, I already have a reasonably good system (svn, git, updatedb,
> doxygen, rdiff-backup and other IO intensive programs normally run
> under ionice -c 2 -n 7 since interactivity is more important than
> pure time-to-finish).  but sometimes I still see IO storms and my
> desktop (less often my laptop, since I do more on my desktop and it's
> a slower computer) will stall for 5-10 seconds and then continue.
>
> top will almost always show me what the IO hogging apps are because
> normally there's a good correlation between IO use and CPU use, but
> that's not always the case.
>
> apart from sar, iostate, vmstat, (none of which, AFAICT, will show
> me what application is hogging the disk) what command line monitoring
> program is there that will show disk hogging by program name (not just
> aggregate numbers per device).
>
> tiger
>
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-- 
Mike Calizo
Registered Linux User # 365113

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  • [plug] io top? Gerald Timothy Quimpo
    • Re: [plug] io top? Michael Calizo

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