Linux support for AMD Core Performance Boost (AMD version of turbo boost)

[curaga]

http://lkml.org/lkml/2010/3/22/333

Hi all,

here's a small patchset that implements two new performance-related
features on AMD: Core Performance Boost and Effective Frequency
reporting (APERF/MPERF). Details for each are to be found in the
respective commit messages, as Andrew requested .

5/5 overloads the /sys/devices/system/cpu/cpu3/cpufreq/scaling_cur_freq
interface to show the actual core frequency when boosting. Let me know
if the way it is done is agreeable.

Thanks,
Boris.

Looks like it's supported on Thuban and Zosma.

[curaga]

SemiAccurate posted an article on this:

http://www.semiaccurate.com/2010/04/08/amd-talks-turbo-core/