Signed-off-by: David Hunt <david.h...@intel.com> --- doc/guides/prog_guide/power_man.rst | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/doc/guides/prog_guide/power_man.rst b/doc/guides/prog_guide/power_man.rst index c5d62a3..fdf8f5f 100644 --- a/doc/guides/prog_guide/power_man.rst +++ b/doc/guides/prog_guide/power_man.rst @@ -97,6 +97,14 @@ basis. This is achieved by enabling Turbo Boost Technology in the BIOS, then looping through the relevant cores and enabling/disabling Turbo Boost on each core. +Use of Power Library in a Hyper-Threaded Environment +---------------------------------------------------- + +In the case where the power library is in use on a system with Hyper-Threading enabled, +the frequency on the physical core is set to the highest frequency of the Hyper-Thread siblings. +So even though an application may request a scale down, the core frequency will +remain at the highest frequency until all Hyper-Threads on that core request a scale down. + API Overview of the Power Library --------------------------------- -- 2.7.4
