perf

Messages with a prefix perf are issued by kernel functions that support the z/Architecture® CPU-measurement facility.

perf.2308eb
CPU[<cpu number>] CPUM_SF: Basic-sampling: a=<authorization control> e=<enable control> c=<activation control> bsdes=<basic-sampling-data-entry size> tear=<tear register contents> dear=<dear register contents>
perf.444429
CPU[<cpu number>] CPUM_SF: basic=<authorization status for the basic-sampling function> diag=<authorization status for the diagnostic-sampling function> min=<minimum sampling interval> max=<maximum sampling interval> cpu_speed=<cpu speed>
perf.ad938e
The sampling facility is already reserved by <address of perf sampling support owner>
perf.c7b342
CPU[<cpu number>] CPUM_SF: Diagnostic-sampling: a=<authorization control> e=<enable control> c=<activation control> dsdes=<diagnostic-sampling-data-entry size> tear=<tear register contents> dear=<dear register contents>
perf.ee05c5
CPU[<cpu number>] CPUM_CF: ver=<first version number>.<second version number> A=<counter set authorization> E=<counter set enable controls> C=<counter set activation controls>

Parent topic: Linux on Z and LinuxONE kernel messages