Messages in this thread | | | From | Song Liu <> | Subject | Re: perf/x86/intel/uncore | Date | Fri, 25 Jan 2019 22:45:59 +0000 |
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> On Jan 25, 2019, at 2:42 PM, Liang, Kan <kan.liang@linux.intel.com> wrote: > > > > On 1/25/2019 5:24 PM, Song Liu wrote: >> I also noticed that uncore_pci_probe() returns at >> if (atomic_inc_return(&pmu->activeboxes) > 1) >> return 0; >> for bus 1-7. So we only probed bus 0 (socket 0). Is this expected behavior? > > We probed all, but only need to register PMU once. > It can be distinguished by cpumask. E.g. you may want to check "/sys/devices/uncore_imc_0/cpumask". > > > Thanks, > Kan
I see. That works:
[root@rtptest10787.snc1 /sys/bus/event_source/devices/uncore_imc_0]# cat cpumask 0,28,56,84,112,140,168,196
I think this solves all the problems.
Thanks again! Song
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