Comment # 4 on bug 1018770 from Ralf K�lmel

Hi,
for completeness please provide also these infos, maybe to see if there are
some odd configurations:
cat /sys/devices/system/cpu/intel_pstate/
max_perf_pct  min_perf_pct  no_turbo      num_pstates   turbo_pct

I'm assuming that you have no special kernel parameters set ?

On my system, which don't show this problem, it looks like :
 cat /sys/devices/system/cpu/intel_pstate/max_perf_pct 
100
 cat /sys/devices/system/cpu/intel_pstate/min_perf_pct 
31
 cat /sys/devices/system/cpu/intel_pstate/num_pstates  
27
 cat /sys/devices/system/cpu/intel_pstate/no_turbo    
0
 cat /sys/devices/system/cpu/intel_pstate/turbo_pct 
4
The reference explanation (also for the correlation of intel_pstate with
cpufreq) you can find on
https://www.kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt .
One thing i should mention for my systems, that i use tuned to set a cpu/energy
profile.
This isn't the default for a clean installation.