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From: Andres Freund <andres@2ndquadrant.com>
To: Niels Kristian Schjødt <nielskristian@autouncle.com>
Cc: Merlin Moncure <mmoncure@gmail.com>
Cc: pgsql-performance@postgresql.org list <pgsql-performance@postgresql.org>
Subject: Re: Sudden crazy high CPU usage
Date: Wed, 2 Apr 2014 00:16:53 +0200
Message-ID: <20140401221653.GI3750@awork2.anarazel.de> (raw)
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On 2014-03-31 19:16:58 +0200, Niels Kristian Schjødt wrote:
> Yes, I could install “perf”, though I’m not familiar with it. What would i do? :-)

As root:
perf record -a sleep 5
perf report > my-nice-perf-report.txt

And then send the my-nice-perf-report.txt file.

Locally it's much nicer to see the output using "perf report" without
redirect into a file, you'll get an interactive UI.

Greetings,

Andres Freund

-- 
 Andres Freund	                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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