Hi Tejun, On 4 May 2017 at 22:28, Tejun Heo <[email protected]> wrote: > Hello, > > v1 posting can be found at > > http://lkml.kernel.org/r/[email protected] > > The patchset is still RFC and based on v4.11. I used Peter's updated > calc_cfs_shares() instead of scaling manually and updated so that > runnable_load_avg is propagated independently from load_avg. Due to > the way sched_entity and cfs_rq loads are calculated, this requires an > extra runnable_load_avg calculation for group sched_entities, but the > end result is cleaner and actually makes sense. > > Vincent, can you please verify whether the regression that you see is > gone with this version?
schbench results looks better with this version Latency percentiles (usec) 50.0000th: 212 75.0000th: 292 90.0000th: 385 95.0000th: 439 *99.0000th: 671 99.5000th: 7992 99.9000th: 12176 min=0, max=14855 p99 is back to a normal value but p99.5 stays higher than mainline I have also checked load_avg and runnable_load_avg value and there is something incorrect. I will provide details on the related patch Regards, Vincent > > Thanks. > > -- > tejun
