linux-kernel - Re: Costly Context Switches

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Message-ID: <20101213140052.GQ11368@charite.de>
Date:	Mon, 13 Dec 2010 15:00:52 +0100
From:	Ralf Hildebrandt <Ralf.Hildebrandt@...rite.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: Costly Context Switches

* Arnaldo Carvalho de Melo <acme@...stprotocols.net>:

> Better to record just "cs" (Context Switches) events and also to collect
> callchains when those events take place:
> 
> [acme@...icio ~]$ perf record -e cs -g chromium-browser


OK, I will try this. The application is dovecot-2.0, so I need to perf
record it and all it's children (imap, pop3, auth, etc). 

Is this done by default?

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
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  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt@...rite.de | http://www.charite.de
	    
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