Date: Tue, 4 Nov 2008 09:18:01 -0500 From: Bill Moran <wmoran@potentialtech.com> To: "Eduardo Meyer" <dudu.meyer@gmail.com> Cc: questions@freebsd.org Subject: Re: Disk top usage PIDs Message-ID: <20081104091801.ff0297b0.wmoran@potentialtech.com> In-Reply-To: <d3ea75b30811040612g3ba10a8fuf5551b730176acc2@mail.gmail.com> References: <d3ea75b30811040612g3ba10a8fuf5551b730176acc2@mail.gmail.com>
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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 -- Bill Moran http://www.potentialtech.com
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