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Date:   Fri, 3 Aug 2018 12:49:56 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Reinette Chatre <reinette.chatre@intel.com>
Cc:     Dave Hansen <dave.hansen@intel.com>, tglx@linutronix.de,
        mingo@redhat.com, fenghua.yu@intel.com, tony.luck@intel.com,
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        jithu.joseph@intel.com, hpa@zytor.com, x86@kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] x86/intel_rdt and perf/x86: Fix lack of coordination
 with perf
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On Thu, Aug 02, 2018 at 01:43:42PM -0700, Reinette Chatre wrote:

> The goal of this work is to use the existing PMU hardware coordination
> mechanism to ensure that perf and resctrl will not interfere with each
> other.

I understand what it does.. but if I'd seen you frobbing at the PMU
earlier your patches would've never gotten merged.

It's simply not going to happen.