Re: [PATCH v2 for-4.12-fixes 1/2] sched/fair: Use task_groups instead of leaf_cfs_rq_list to walk all cfs_rqs

[Tejun Heo]

On Wed, May 24, 2017 at 04:40:34PM -0700, Tim Chen wrote:
> We did some preliminary testing of this patchset for a well
> known database benchmark on a 4 socket Skylake server system.
> It provides a 3.7% throughput boost which is significant for
> this benchmark.

That's great to hear.  Yeah, the walk can be noticeably expensive even
with moderate number of cgroups.  Thanks for sharing the result.

-- 
tejun