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

Aaron Lu
2020-02-25T07:34:58Z

On Tue, Feb 25, 2020 at 01:32:35PM +0800, Aubrey Li wrote:
> Aaron - did you test this before? In other words, if you reset repo to your
> last commit:

I did this test only recently when I started to think if I can use
coresched to boost main workload's performance in a colocated
environment.

>
> - 5bd3c80 sched/fair : Wake up forced idle siblings if needed
>
> Does the problem remain? Just want to check if this is a regression
> introduced by the subsequent patchset.

The problem isn't there with commit 5bd3c80 as the head, so yes, it
looks like indeed a regression introduced by subsequent patchset.

P.S. I will need to take a closer look if each cgA's task is running
on a different core later but the cpu usage of cgA is back to 800% with
commit 5bd3c80.