linux-kernel - Re: [PATCH] perf/x86: add Intel SkyLake uncore IMC PMU support

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Message-ID: <CABPqkBShReBSMbG3t17SCc7dQ4a1bJNX6o2XSNqZ+_TpTy+VKA@mail.gmail.com>
Date:	Thu, 7 Jan 2016 10:35:07 -0800
From:	Stephane Eranian <eranian@...gle.com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>, "Liang, Kan" <kan.liang@...el.com>
Subject: Re: [PATCH] perf/x86: add Intel SkyLake uncore IMC PMU support

On Thu, Jan 7, 2016 at 8:53 AM, Andi Kleen <ak@...ux.intel.com> wrote:
> On Thu, Jan 07, 2016 at 08:25:46AM +0100, Stephane Eranian wrote:
>> This patch enables the uncore_imc PMU for Intel
>> SkyLake Desktop processors (Core i7-6700, model 94).
>>
>> It is possible to compute memory read/write bandwidth
>> using:
>> $ perf stat -a -e uncore_imc/data_reads/,uncore_imc/data_writes/ ....
>
> Thanks.
>
> Kan is working on a more complete patch to support SKL uncore.
> Yours is missing the MSRs and the -U systems.
>
I understand that. But the IMC is really what is most useful to users.
I focused on that one only in this series.

> -Andi