linux-kernel - Re: [PATCH V5 4/6] perf, x86: handle multiple records in PEBS buffer

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Message-ID: <20150330201116.GI2366@two.firstfloor.org>
Date:	Mon, 30 Mar 2015 22:11:16 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"Liang, Kan" <kan.liang@...el.com>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"acme@...radead.org" <acme@...radead.org>,
	"eranian@...gle.com" <eranian@...gle.com>
Subject: Re: [PATCH V5 4/6] perf, x86: handle multiple records in PEBS buffer


Fair enough.

For now we can simply only allow multi pebs if only a single
PEBS event is active (non PEBS events don't matter, as we
can just ignore those)

This would be always on Atom, which only has a single PEBS
counter.

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