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tvogel / vaio-f11-linux

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Intel TurboBoost is not working #12

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Using 2.6.33 kernel 
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_avaliable_frequencies show 
only normal one (ie 1.6Ghz for Corei7 720QM), there is no turbo (1.6Ghz-
2.8Ghz) frequencies there.

Original issue reported on code.google.com by genpm...@gmail.com on 16 Apr 2010 at 5:34

GoogleCodeExporter commented 9 years ago 
From http://kbase.redhat.com/faq/docs/DOC-17124 :
The displayed processor speed will not increase beyond the maximum for which the
processor is rated, even when Turbo Boost is in operation. The maximum speed
displayed in /sys/devices/system/cpu/cpuX/cpufreq is the rated maximum for all 
cores
under full utilization.

Note, however, that you must use "ondemand" or "performance" governors in the
kernel. Usermode scaling won't see the higher frequencies.

Original comment by yann.ver...@gmail.com on 18 Apr 2010 at 9:46

GoogleCodeExporter commented 9 years ago 
Download and build the project at http://code.google.com/p/i7z/ 

It reports information to help you determine if Turbo Boost is in operation.

Original comment by c.ra...@gmail.com on 20 Apr 2010 at 6:40

GoogleCodeExporter commented 9 years ago 
Oh, everything seems to be working - sorry for a false alarm guys!

Original comment by genpm...@gmail.com on 21 Apr 2010 at 6:46

GoogleCodeExporter commented 9 years ago 
Reporter error.

Original comment by Jason.Donenfeld on 29 May 2010 at 2:52