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From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Stephane Eranian <eranian@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"mingo@elte.hu" <mingo@elte.hu>,
	"ak@linux.intel.com" <ak@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung.kim@lge.com>
Subject: Re: [PATCH v2 14/16] perf tools: add new mem command for memory access profiling
Date: Tue, 6 Nov 2012 13:51:19 -0300	[thread overview]
Message-ID: <20121106165119.GC13629@infradead.org> (raw)
In-Reply-To: <CABPqkBSh_QGrZrQgmLKavuGLz+jC4fyczLGffo6iWnpzW6BzfA@mail.gmail.com>

Em Tue, Nov 06, 2012 at 04:49:26PM +0100, Stephane Eranian escreveu:
> On Tue, Nov 6, 2012 at 4:44 PM, Arnaldo Carvalho de Melo
> <acme@redhat.com> wrote:
> > Em Mon, Nov 05, 2012 at 02:51:01PM +0100, Stephane Eranian escreveu:
> >> +
> >> +     if (strcmp(mem_operation, MEM_OPERATION_LOAD))
> >> +             sprintf(event, "cpu/mem-stores/pp");
> >> +     else
> >> +             sprintf(event, "cpu/mem-loads/pp");

> > Fails for me on a Sandy Bridge notebook:

> That's because you need to update the microcode.

> $ sudo modprobe microcode
> $ cat /proc/cpuinfo
> 
> Line with microcode needs to say:
> microcode : 0x28

Here it says:

microcode	: 0x25
 
> update the microcode package or install directly from
> intel download center.

Thanks for the info, will do. And they will add "microcode hints for
selected processors should give that info to the user" to my TODO list
:-)

- Arnaldo

  reply	other threads:[~2012-11-06 16:51 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-05 13:50 [PATCH v2 00/16] perf: add memory access sampling support Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 01/16] perf/x86: improve sysfs event mapping with event string Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 02/16] perf/x86: add flags to event constraints Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 03/16] perf, core: Add a concept of a weightened sample Stephane Eranian
2012-11-05 20:01   ` Arnaldo Carvalho de Melo
2012-11-05 20:07     ` Arnaldo Carvalho de Melo
2012-11-05 22:51     ` Andi Kleen
2012-11-05 13:50 ` [PATCH v2 04/16] perf: add minimal support for PERF_SAMPLE_WEIGHT Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 05/16] perf, tools: Add arbitary aliases and support names with - Stephane Eranian
2012-11-14  7:34   ` [tip:perf/core] perf " tip-bot for Andi Kleen
2012-11-05 13:50 ` [PATCH v2 06/16] perf: add support for PERF_SAMPLE_ADDR in dump_sampple() Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 07/16] perf: add generic memory sampling interface Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 08/16] perf/x86: add memory profiling via PEBS Load Latency Stephane Eranian
2012-11-06 13:31   ` Andi Kleen
2012-11-06 14:29     ` Stephane Eranian
2012-11-06 18:50       ` Andi Kleen
2012-11-06 19:37         ` Stephane Eranian
2012-11-07 14:39           ` Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 09/16] perf/x86: export PEBS load latency threshold register to sysfs Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 10/16] perf/x86: add support for PEBS Precise Store Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 11/16] perf tools: add mem access sampling core support Stephane Eranian
2012-11-05 13:50 ` [PATCH v2 12/16] perf report: add support for mem access profiling Stephane Eranian
2012-11-05 13:51 ` [PATCH v2 13/16] perf record: " Stephane Eranian
2012-11-05 13:51 ` [PATCH v2 14/16] perf tools: add new mem command for memory " Stephane Eranian
2012-11-06 15:44   ` Arnaldo Carvalho de Melo
2012-11-06 15:49     ` Stephane Eranian
2012-11-06 16:51       ` Arnaldo Carvalho de Melo [this message]
2012-11-06 17:05         ` Arnaldo Carvalho de Melo
2012-11-06 15:50     ` Arnaldo Carvalho de Melo
2012-11-06 15:57       ` Stephane Eranian
2012-11-06 17:07         ` Arnaldo Carvalho de Melo
2012-11-05 13:51 ` [PATCH v2 15/16] perf: add PERF_RECORD_MISC_MMAP_DATA to RECORD_MMAP Stephane Eranian
2012-11-05 13:51 ` [PATCH v2 16/16] perf tools: detect data vs. text mappings Stephane Eranian
2012-11-06 20:52 ` [PATCH v2 00/16] perf: add memory access sampling support Arnaldo Carvalho de Melo
2012-11-07  7:38   ` Namhyung Kim
2012-11-07 10:02     ` Stephane Eranian
2012-11-07 14:53   ` Masami Hiramatsu
2012-11-07 14:56     ` Stephane Eranian

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