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From: Andi Kleen <andi@firstfloor.org>
To: Jan Blunck <jblunck@suse.de>
Cc: Linux-Kernel Mailinglist <linux-kernel@vger.kernel.org>,
        linux-rt-users@vger.kernel.org, peterz@infradead.org,
        Sven-Thorsten Dietrich <sdietrich@novell.com>,
        Michael Galbraith <MGalbraith@novell.com>
Subject: Re: [RFC 1/4] ftrace: Add events for tracing timer interrupts
References: <1283948964-6418-1-git-send-email-jblunck@suse.de>
	<1283948964-6418-2-git-send-email-jblunck@suse.de>
Date: Wed, 08 Sep 2010 15:24:01 +0200
In-Reply-To: <1283948964-6418-2-git-send-email-jblunck@suse.de> (Jan Blunck's
	message of "Wed, 8 Sep 2010 14:29:21 +0200")
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Jan Blunck <jblunck@suse.de> writes:

> Trace the execution of the timer interrupt. I did not find an argument that
> makes any sense so traces look like this:
>
> <idle>-0     [000] 181019.693546: timerirq_enter: unused=1
> <idle>-0     [000] 181019.693553: timerirq_exit: unused=1

I think you can get the same by just filtering the normal
irq entry for the timer irq  number.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.