linux-kernel - Re: [PATCH 4/9] perf/x86: special case per-cpu core misc PMU events

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Date:	Mon, 20 Jul 2015 17:12:30 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	"kan.liang@...el.com" <kan.liang@...el.com>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"acme@...nel.org" <acme@...nel.org>,
	"eranian@...gle.com" <eranian@...gle.com>,
	"adrian.hunter@...el.com" <adrian.hunter@...el.com>,
	"dsahern@...il.com" <dsahern@...il.com>,
	"jolsa@...nel.org" <jolsa@...nel.org>,
	"namhyung@...nel.org" <namhyung@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/9] perf/x86: special case per-cpu core misc PMU events

On Fri, Jul 17, 2015 at 09:17:47PM +0100, Andi Kleen wrote:
> > As with my earlier comments, I don't think these can be grouped with
> > events (not even from the same PMU given their free-running nature).
> 
> Mark, we already went through this last time. There is nothing
> stopping handling free running counters as part of other groups.

Ok. It's inexact (but only marginally), and not the end of the world if
you know that's the case.

My concern last time was mainly with the grouping of uncore and CPU
events.

Thanks,
Mark.
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