linux-kernel - Re: [BUG] perf: sharing of cpuctx between core and ibs PMU causes problems

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Message-ID: <1344871976.31459.35.camel@twins>
Date:	Mon, 13 Aug 2012 17:32:56 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	"Yan, Zheng" <zheng.z.yan@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Robert Richter <robert.richter@....com>, mingo@...e.hu
Subject: Re: [BUG] perf: sharing of cpuctx between core and ibs PMU causes
 problems

On Mon, 2012-08-13 at 14:53 +0200, Stephane Eranian wrote:
> 
> Your proposal solves the problem, though it is not that pretty because
> you're exposing
> IBS stuff in sched.h aside for the 2 new iterations. But I don't see
> another way around
> this at this point. 

Yeah, I don't particularly like it either.. but I'm having a similar
problem of not seeing anything better.

I was going to see if I could make the two IBS PMUs share something, but
that's going to be pain whichever way you turn it.
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