Re: [RFC PATCH v4 00/19] Core scheduling v4

Aubrey Li
2020-01-02T02:28:17Z

On Tue, Nov 12, 2019 at 9:45 AM Dario Faggioli <dfaggioli@suse.com> wrote:
>
> On Fri, 2019-11-01 at 10:03 -0400, Vineeth Remanan Pillai wrote:
> > Hi Phil,
> >
> > > Unless I'm mistaken 7 of the first 8 of these went into sched/core
> > > and are now in linux (from v5.4-rc1). It may make sense to rebase
> > > on
> > > that and simplify the series.
> > >
> > Thanks a lot for pointing this out. We shall test on a rebased 5.4 RC
> > and post the changes soon, if the tests goes well. For v3, while
> > rebasing
> > to an RC kernel, we saw perf regressions and hence did not check the
> > RC kernel this time. You are absolutely right that we can simplify
> > the
> > patch series with 5.4 RC.
> >
> And, in case it's useful to anybody, here's a rebase of this series on
> top of 5.4-rc7:
>
> https://github.com/dfaggioli/linux/tree/wip/sched/v5.4-rc7-coresched
>

In case it's useful to anyone, I rebased the series on top of v5.5-rc4.
https://github.com/aubreyli/linux/tree/coresched_v4-v5.5-rc4

v5.5 includes a few scheduler rework and fix, so I modified patch1/2/6,
patch-0002 has relatively big changes, but still has no functionality
and logic change.

0001-sched-Wrap-rq-lock-access.patch
0002-sched-Introduce-sched_class-pick_task.patch
0003-sched-Core-wide-rq-lock.patch
0004-sched-Basic-tracking-of-matching-tasks.patch
0005-sched-A-quick-and-dirty-cgroup-tagging-interface.patch
0006-sched-Add-core-wide-task-selection-and-scheduling.patch
0007-sched-fair-Add-a-few-assertions.patch
0008-sched-Trivial-forced-newidle-balancer.patch
0009-sched-Debug-bits.patch
0010-sched-fair-wrapper-for-cfs_rq-min_vruntime.patch
0011-sched-fair-core-wide-vruntime-comparison.patch
0012-sched-fair-Wake-up-forced-idle-siblings-if-needed.patch

I verified by my test suites, it seems to work.

Thanks,
-Aubrey