linux-kernel - Re: [PATCH 0/9] Performance counters for POWER

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Message-ID: <20090111014825.GO12885@elte.hu>
Date:	Sun, 11 Jan 2009 02:48:25 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Paul Mackerras <paulus@...ba.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 0/9] Performance counters for POWER


* Paul Mackerras <paulus@...ba.org> wrote:

> Ingo Molnar writes:
> 
> > Do timec.c and kerneltop.c work fine for you by any chance? If yes, could 
> > you send us some sample output that you get with them on your power 
> > testbox(es)?
> 
> timec.c works with some minor modifications.  I'll post my version in a 
> separate message.  The main difference is that syscall() on powerpc 
> returns -1 on error and sets errno, rather than returning a negative 
> error number.  I also added a way to specify raw events.

thanks - i've picked up your version and uploaded it to:

   http://redhat.com/~mingo/perfcounters/timec.c

	Ingo
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