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

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Message-ID: <20140719004941.GI18735@two.firstfloor.org>
Date:	Sat, 19 Jul 2014 02:49:41 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Andi Kleen <ak@...ux.intel.com>, 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

On Tue, Jul 15, 2014 at 12:49:43AM +0200, Stephane Eranian wrote:
> On Tue, Jul 15, 2014 at 12:39 AM, Andi Kleen <ak@...ux.intel.com> wrote:
> >> 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?
> >
> Ok, do that at a minimum.

I fixed it now. However it turned out that "perf mem report"
actually not report mem_op, only mem_lvl.

You may want to fix that separately.

-Andi
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