In response to "Eduardo Meyer" <[EMAIL PROTECTED]>:
> I have some serious issue. Sometimes something happens and my disk
> usage performance find its limit quickly. I follow with gstat and
> iostat -xw1, and everything usually happens just fine, with %b around
> 20 and 0 to 1 pending i/o request. Suddely I get 30, 40 pending
> requests and %b is always on 100% (or more than this).
> fstat and lsof gives me no hint, because the type of programs as well
> as the amount of 'em is just the same.
> How can I find the PID which is hammering my disk? Is there an "iotop"
> or "disktop" tool or something alike?

top -m io -o total

Bill Moran
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