linux-kernel - Re: [PATCH 07/10] perf, tools: Collapse identically named events in perf stat

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Message-ID: <20161017181251.GP3078@tassilo.jf.intel.com>
Date:   Mon, 17 Oct 2016 11:12:51 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Andi Kleen <andi@...stfloor.org>, acme@...nel.org,
        jolsa@...nel.org, sukadev@...ux.vnet.ibm.com, eranian@...gle.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 07/10] perf, tools: Collapse identically named events in
 perf stat

On Mon, Oct 17, 2016 at 07:28:36PM +0200, Jiri Olsa wrote:
> On Mon, Oct 17, 2016 at 09:30:17AM -0700, Andi Kleen wrote:
> > > this leads to my next question: why this merging should be default?
> > 
> > It's the right default for uncore, and it doesn't do anything for
> > non uncore because these usually don't have duplicated event aliases
> > over different PMUs.
> 
> I don't like the part when we depends on 'usually'

I'm not aware of any counter example in today's perf.

-Andi