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 > > <[email protected]> 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
