On Tue, Feb 9, 2016 at 11:01 AM, Gautham R Shenoy <e...@linux.vnet.ibm.com> wrote: > Hello Rafael, > > On Sun, Feb 07, 2016 at 03:50:31PM +0100, Rafael J. Wysocki wrote: >> From: Rafael J. Wysocki <rafael.j.wyso...@intel.com> >> >> Instead of using a per-CPU deferrable timer for queuing up governor >> work items, register a utilization update callback that will be >> invoked from the scheduler on utilization changes. >> >> The sampling rate is still the same as what was used for the >> deferrable timers and the added irq_work overhead should be offset by >> the eliminated timers overhead, so in theory the functional impact of >> this patch should not be significant. > > I tested this patch series (including v5 of PATCH 3) on POWER with > Viresh's CPUFreq test suite. I didn't see any issues with the > patchset except for a lockdep splat involving "s_active" and > "od_dbs_cdata.mutex", which was also observed on 4.5-rc3 and which > was fixed by Viresh's recent patches. > > With a kernbench run, there were no regression when compared to 4.5-rc3. > > FWIW, Tested-by: Gautham R. Shenoy <e...@linux.vnet.ibm.com>
Thank you!
