From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: "Yan, Zheng" <zheng.z.yan@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Robert Richter <robert.richter@amd.com>,
mingo@elte.hu
Subject: Re: [BUG] perf: sharing of cpuctx between core and ibs PMU causes problems
Date: Mon, 13 Aug 2012 17:32:56 +0200 [thread overview]
Message-ID: <1344871976.31459.35.camel@twins> (raw)
In-Reply-To: <CABPqkBREO7GE8qYqVoeyfFyC+gdn+TOf8f9sp_Yu0_O1Eds55A@mail.gmail.com>
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.
next prev parent reply other threads:[~2012-08-13 15:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 0:51 [BUG] perf: sharing of cpuctx between core and ibs PMU causes problems Stephane Eranian
2012-08-09 6:55 ` Yan, Zheng
2012-08-09 14:05 ` Stephane Eranian
2012-08-09 18:08 ` Peter Zijlstra
2012-08-09 19:21 ` Stephane Eranian
2012-08-13 10:28 ` Peter Zijlstra
2012-08-13 12:53 ` Stephane Eranian
2012-08-13 15:32 ` Peter Zijlstra [this message]
2012-08-13 15:36 ` Stephane Eranian
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