linux-kernel - Re: [PATCH 18/18] 2.6.17.9 perfmon2 patch for review: new x86

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Message-ID: <20060823152555.GA32725@infradead.org>
Date:	Wed, 23 Aug 2006 16:25:55 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Stephane Eranian <eranian@....hp.com>
Cc:	Andi Kleen <ak@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 18/18] 2.6.17.9 perfmon2 patch for review: new x86_64 files

On Wed, Aug 23, 2006 at 03:29:32AM -0700, Stephane Eranian wrote:
> > > +#define PFM_EM64T_PEBS_SMPL_UUID { \
> > > +	0x36, 0xbe, 0x97, 0x94, 0x1f, 0xbf, 0x41, 0xdf,\
> > > +	0xb4, 0x63, 0x10, 0x62, 0xeb, 0x72, 0x9b, 0xad}
> > 
> > What does it need the UUID for?
> > 
> Every sampling format is identified by a UUID. This  is how an
> application can identify the format it wants to use when it
> creates a context.

Please use a string name, just like every other interface for
such selections.

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