RHEL7.
cpufreq_performance 조절기를 설정하려고 하는데 어떤 이유로 작동하지 않습니다.
[root@localhost]# cpupower frequency-set -g cpufreq_performance
invalid or unknown argument
[root@localhost]# cpupower frequency-info --governors
analyzing CPU 0:
cpufreq_performance왜 주지사를 설정할 수 없나요 ? 사용 가능한 총재 목록을 인쇄할 수 없는 이유는 무엇입니까?
우스운 일이지만 유휴 시스템에서도 내 CPU는 최대 터보 주파수로 실행되는 것 같습니다. 다음 CPU는 Xeon E5-2640 v1입니다. "Freq"가 "현재", "실시간" 값인 경우 내 CPU는 "터보 부스트"된 것입니다.
[root@localhost]# cpupower monitor
|Nehalem || SandyBridge || Mperf
PKG |CORE|CPU | C3 | C6 | PC3 | PC6 || C7 | PC2 | PC7 || C0 | Cx | Freq
0| 0| 0| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.18| 99.82| 2789
0| 0| 12| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.01| 99.99| 2790
0| 1| 1| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.03| 99.97| 2789
0| 1| 13| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.01| 99.99| 2797
0| 2| 2| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2737
0| 2| 14| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2799
0| 3| 3| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.01| 99.99| 2778
0| 3| 15| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2788
0| 4| 4| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.02| 99.98| 2786
0| 4| 16| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2791
0| 5| 5| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.01| 99.99| 2791
0| 5| 17| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2784
1| 0| 6| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.02| 99.98| 2790
1| 0| 18| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2790
1| 1| 7| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2803
1| 1| 19| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.09| 99.91| 2790
1| 2| 8| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2791
1| 2| 20| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2783
1| 3| 9| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.01| 99.99| 2791
1| 3| 21| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2789
1| 4| 10| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2791
1| 4| 22| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2792
1| 5| 11| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2793
1| 5| 23| 0.00| 0.00| 0.00| 0.00|| 0.00| 0.00| 0.00|| 0.00|100.00| 2789
고쳐 쓰다
[root@localhost]# cpupower frequency-set -g performance
Setting cpu: 0
Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
- Trying to set an invalid policy?
- Trying to set a specific frequency, but userspace governor is not available,
for example because of hardware which cannot be set to a specific frequency
or because the userspace governor isn't loaded?
업데이트 2
[root@localhost]# cpupower frequency-info --driver
analyzing CPU 0:
[root@localhost]# ls /sys/devices/system/cpu/cpu0
cache crash_notes crash_notes_size driver firmware_node microcode node0 power subsystem thermal_throttle topology uevent
[root@localhost]# cpupower --version
cpupower 3.10.0-123.20.1.el7.x86_64.debug
Report errors and bugs to [email protected], please
[root@localhost]# systemctl status cpupower.service
cpupower.service - Configure CPU power related settings
Loaded: loaded (/usr/lib/systemd/system/cpupower.service; disabled)
Active: inactive (dead)