On 09/01/2015 12:46 PM, Stanislav Baiduzhyi wrote:
On Tue, Sep 1, 2015 at 9:21 PM, Brandon Vincent
wrote: On Tue, Sep 1, 2015 at 12:17 PM, Stanislav Baiduzhyi
wrote: Can anyone please suggest me some way to investigate what is going on in the system? Who or what is causing that?
I'd be interested to see the output of cpufreq-info(1), if its installed.
The output is below. Also, forgot to mention, it's openSUSE 13.2 x86_64, tried both official kernel and 4.2.0, without any difference.
user@zenbook:~> cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to http://bugs.opensuse.org, please. analyzing CPU 0: driver: intel_pstate CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 0.97 ms. hardware limits: 800 MHz - 3.00 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 800 MHz and 3.00 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency is 1.10 GHz. analyzing CPU 1: driver: intel_pstate CPUs which run at the same hardware frequency: 1 CPUs which need to have their frequency coordinated by software: 1 maximum transition latency: 0.97 ms. hardware limits: 800 MHz - 3.00 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 800 MHz and 3.00 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency is 802 MHz. analyzing CPU 2: driver: intel_pstate CPUs which run at the same hardware frequency: 2 CPUs which need to have their frequency coordinated by software: 2 maximum transition latency: 0.97 ms. hardware limits: 800 MHz - 3.00 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 800 MHz and 3.00 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency is 897 MHz. analyzing CPU 3: driver: intel_pstate CPUs which run at the same hardware frequency: 3 CPUs which need to have their frequency coordinated by software: 3 maximum transition latency: 0.97 ms. hardware limits: 800 MHz - 3.00 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 800 MHz and 3.00 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency is 998 MHz.
See this thread: https://bbs.archlinux.org/viewtopic.php?id=163253 This is an known issue with inetl_pstate in some situations. See especially post #4, and perhaps give that a try. You might notice that all but one of your CPUs are running close to their lowest frequency. In short your machine is trying to save power. What little work there is to do is being done by your machine without ramping up the CPU frequency. Were it not for the heat issue, this would seem the wise thing to do, but obviously there must be brief jumps to higher frequencies. -- After all is said and done, more is said than done. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org