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Re: tracking context switches with perf record

From: Andres Freund <andres(at)anarazel(dot)de>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: tracking context switches with perf record
Date: 2012-03-30 22:13:37
Message-ID: 201203310013.38144.andres@anarazel.de (view raw or flat)
Thread:
Lists: pgsql-hackers
On Friday, March 30, 2012 06:27:36 PM Robert Haas wrote:
> Probability=No, score=-3.2 required=5.0 tests=AWL,BAYES_00,
> RCVD_IN_DNSWL_LOW autolearn=ham version=3.2.5   I've been playing around
> with "perf record" on the IBM POWER7 machine, and it's pretty cool.  One
> of the things I don't like is that some of the tools don't produce very
> nice text reports that you can cut and paste into an email - it's kind of
> a text-based GUI where you can zoom around and look at things.  Still,
> it's nice.
You can use --stdio to force a more plain text interface (you need perf 
annotate manually if you want line-by-line view) if you want so. Especially if 
you pipe it through cat or so.

Andres

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