linux-kernel - Re: perf: odd event scheduling issue

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Message-ID: <CABPqkBSahXfJ2JdeGaOXa4Rc2D1cKwN=RpESiRNNHB-LMmQZqQ@mail.gmail.com>
Date:	Thu, 21 May 2015 05:04:07 -0700
From:	Stephane Eranian <eranian@...gle.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Vince Weaver <vincent.weaver@...ne.edu>,
	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>, Ingo Molnar <mingo@...hat.com>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: perf: odd event scheduling issue

On Wed, May 20, 2015 at 4:10 PM, Andi Kleen <andi@...stfloor.org> wrote:
> Peter Zijlstra <peterz@...radead.org> writes:
>>
>> Secondly, we should only enforce this limit if and when there are
>> exclusive events on the system I suppose.
>
> That's the key part really and absolutely needed.
>
Are you talking about the N/2 counters?
If so, they, yes I agree.

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