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I've tried disabling CPU throttling by following instructions from here:

How I can disable CPU frequency scaling and set the system to performance?

No go : 

$ cat /proc/cpuinfo|grep MHz
cpu MHz         : 3823.671
cpu MHz         : 3706.929
cpu MHz         : 3900.039
cpu MHz         : 3812.117
cpu MHz         : 3897.117
cpu MHz         : 1666.664
cpu MHz         : 2421.039
cpu MHz         : 3900.039
cpu MHz         : 3829.781
cpu MHz         : 3039.679
cpu MHz         : 3788.609
cpu MHz         : 1250.960

Any suggestions ?

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user1113145
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  • What is the CPU? – Pilot6 Dec 10 '16 at 17:07
  • The cpu is 6800k – user1113145 Dec 10 '16 at 17:09
  • 6800k is not a CPU model. – Pilot6 Dec 10 '16 at 17:09
  • You can see it by lscpu. – Pilot6 Dec 10 '16 at 17:10
  • Try TLP and http://askubuntu.com/questions/556894/tlp-dont-change-cpu-frequency set cpu to performance in tlp – answerSeeker Dec 10 '16 at 17:10
  • Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Thread(s) per core: 2 Core(s) per socket: 6 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 79 Model name: Intel(R) Core(TM) i7-6800K CPU @ 3.40GHz Stepping: 1 CPU MHz: 3499.078 CPU max MHz: 4000.0000 CPU min MHz: 1200.0000 BogoMIPS: 6936.70 – user1113145 Dec 10 '16 at 17:12
  • Yep, http://askubuntu.com/questions/556894/tlp-dont-change-cpu-frequency worked (disabling intel_pstate) ! Thanks! – user1113145 Dec 10 '16 at 17:16
  • It is better not to disable pstate but to switch it to performance. – Pilot6 Dec 10 '16 at 17:17
  • Even when using the performance governor, the CPU itself can backoff the pstate (CPU clock frequency) by itself, if the load is low enough. Don't worry, it ramps up very very fast when required. – Doug Smythies Dec 10 '16 at 17:41
  • Oh, and when you disable the intel_pstate CPU frequency scaling driver, the the CPU frequencies displayed are what was asked for, not what is actually given. The CPU itself will still be backing off under very low load conditions, even though what you see suggests otherwise. – Doug Smythies Dec 10 '16 at 17:43

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