MSR_APERF          94 tools/power/cpupower/utils/idle_monitor/mperf_monitor.c 	ret = read_msr(cpu, MSR_APERF, &val);
MSR_APERF         108 tools/power/cpupower/utils/idle_monitor/mperf_monitor.c 	ret = read_msr(cpu, MSR_APERF, &val);