On Mon, Jan 11, 2016 at 02:54:36PM -0600, Shilpasri G Bhat wrote: > In POWER8, OCC(On-Chip-Controller) can throttle the frequency of the > CPU when the chip crosses its thermal and power limits. Currently, > powernv-cpufreq driver detects and reports this event as a console > message. Some machines may not sustain the max turbo frequency in all > conditions and can be throttled frequently. This can lead to the > flooding of console with throttle messages. So this patchset aims to > redesign the presentation of this event via sysfs counters and > tracepoints. > > Patches [2] to [4] will add a perf trace point "power:powernv_throttle" and > sysfs throttle counter stats in /sys/devices/system/cpu/cpufreq/chipN. > Patch [1] solves a bug in powernv_cpufreq_throttle_check(), which calls in to > cpu_to_chip_id() in hot path which reads DT every time to find the chip id.
<formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read Documentation/stable_kernel_rules.txt for how to do this properly. </formletter> _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
