* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > On Sun, Dec 06, 2015 at 02:11:02PM +0100, Ingo Molnar wrote: > > > the symptom is that latest 'perf top' and 'perf record' produces no samples. > > > > So I've removed this commit and the related Skylake commit from -tip: > > > > 4576ceaa56a8 perf/x86: Use INST_RETIRED.PREC_DIST for cycles:ppp > > ac1e1d30cf90 perf/x86: Use INST_RETIRED.TOTAL_CYCLES_PS for cycles:pp for Skylake > > > > you need to do better testing next time around. Note: if you resubmit the patches, > > please also pick up the updates commit changelogs from the tip-bot emails, don't > > use your original changelogs. > > OK, so I need: > > lkml.kernel.org/r/1449177740-5422-1-git-send-email-andi@xxxxxxxxxxxxxx > lkml.kernel.org/r/1449177740-5422-2-git-send-email-andi@xxxxxxxxxxxxxx > > On my IVB because that keeps triggering that case with :ppp, other than > that this seems to work fine on IVB. > > I've also tried on SNB (which does not support the new :ppp thing) and > that too works. > > Sadly I do not have older hardware anymore :/ > > > Also, perf tools DTRT and will use :ppp by default if available. So I checked my NHM box with your latest queue and it now works correctly. Do you have any idea what the difference is/was? Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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