linux-kernel - Re: [PATCH 05/34] perf, x86: Report PEBS event in a raw format

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Date:	Tue, 23 Oct 2012 15:30:00 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org, acme@...hat.com, eranian@...gle.com,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 05/34] perf, x86: Report PEBS event in a raw format

> Also, there's an alignment issue there, the raw.data is 32bit offset,
> the record is u64 aligned, leaving the output stream offset, wrecking
> things.

Can you explain more? Not sure I understand.

It appears to work at least.

> 
> And as with any ABI extension, it should come with useful userspace to
> make use of it.

There are already scripts available to use it, see Feng's patchkit.

-Andi

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