Messages in this thread | | | Date | Tue, 6 Nov 2012 14:05:02 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH v2 14/16] perf tools: add new mem command for memory access profiling |
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Em Tue, Nov 06, 2012 at 01:51:19PM -0300, Arnaldo Carvalho de Melo escreveu: > 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: > > >> + 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
Updated it and now I have 0x28, better:
Samples: 8K of event 'cpu/mem-loads/pp', Event count (approx.): 89255 0.75% 1 665 L3 hit [.] arena_run_tree_remove 0.67% 1 602 LFB hit [.] nsSMILAnimationController::DoSample(bool) 0.63% 1 563 Local RAM hit [.] 0x00000000004620c4 0.58% 1 515 Local RAM hit [.] 0x00007f6b278aa7bc 0.54% 1 479 L2 hit [.] XPending 0.33% 1 292 Local RAM hit [.] nsSVGFEMorphologyElement::Filter(nsSVGFilterInstance*, nsTArray<
Will do more tests after lunch,
- Arnaldo
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