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Date:      Tue, 4 Nov 2008 12:27:36 -0200
From:      "Eduardo Meyer" <dudu.meyer@gmail.com>
To:        "Bill Moran" <wmoran@potentialtech.com>
Cc:        questions@freebsd.org
Subject:   Re: Disk top usage PIDs
Message-ID:  <d3ea75b30811040627h29a4c65tc25f04e1f28ea31@mail.gmail.com>
In-Reply-To: <20081104091801.ff0297b0.wmoran@potentialtech.com>
References:  <d3ea75b30811040612g3ba10a8fuf5551b730176acc2@mail.gmail.com> <20081104091801.ff0297b0.wmoran@potentialtech.com>

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On Tue, Nov 4, 2008 at 12:18 PM, Bill Moran <wmoran@potentialtech.com> wrote:
> In response to "Eduardo Meyer" <dudu.meyer@gmail.com>:
>>
>> 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

Great, thats exactly what I was looking for, thank you a lot Mr Moran.

>
> --
> Bill Moran
> http://www.potentialtech.com
>



-- 
===========
Eduardo Meyer
pessoal: dudu.meyer@gmail.com
profissional: ddm.farmaciap@saude.gov.br



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