Re: [PATCH 0/2 v2] sched: improve spread of tasks during fork

From: Matt Fleming
Date: Mon Nov 28 2016 - 12:03:52 EST


On Fri, 25 Nov, at 04:34:31PM, Vincent Guittot wrote:
> This patchset was originally 1 patch but a perf regression happened during the rebase.
> The patch 01 fixes the perf regression discovered in tip/sched/core during the
> rebase.
> The patch 02 is the rebase of the patch that fixes the regression raised by
> Matt Fleming [1].
>
> [1] https://lkml.org/lkml/2016/10/18/206
>
> Vincent Guittot (2):
> sched: fix find_idlest_group for fork
> sched: use load_avg for selecting idlest group
>
> kernel/sched/fair.c | 54 +++++++++++++++++++++++++++++++++++++++++++----------
> 1 file changed, 44 insertions(+), 10 deletions(-)

FYI, I'm running both of these patches through the SUSE performance
testing grid right now. I'll let you know as soon as I have results
(should be in the next few days).