linux-kernel - Re: [PATCH 2/2] perf, x86: Don't mark DataLA addresses as store

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Message-ID: <20140714223918.GE5803@tassilo.jf.intel.com>
Date:	Mon, 14 Jul 2014 15:39:18 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] perf, x86: Don't mark DataLA addresses as store

> I have a problem with this patch.
> 
> It makes: perf mem -t store rec record OP_NA for the store.
> It was recording OP_STORE before.
> 
> I think we need to keep LD/ST info. This is useful for analysis
> especially if we collect loads/stores simultaneously.
> 
> Was working before for the mem-loads, mem-stores events.

Ok. Would it be enough if it only worked for "mem-stores" and not 
all PEBS events? 

Otherwise have to go back to an even larger PEBS constraint 
table for HSW than before.

-Andi

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