Messages in this thread | | | Subject | Re: [External] Re: [PATCH] psi: Add PSI_CPU_FULL state | From | Chengming Zhou <> | Date | Tue, 9 Feb 2021 09:49:34 +0800 |
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在 2021/2/9 上午2:18, Johannes Weiner 写道:
> On Sun, Feb 07, 2021 at 03:24:02PM +0800, Chengming Zhou wrote: >> The FULL state doesn't exist for the CPU resource at the system level, >> but exist at the cgroup level, means all non-idle tasks in a cgroup are >> delayed on the CPU resource which used by others outside of the cgroup. >> >> Co-developed-by: Muchun Song <songmuchun@bytedance.com> >> Signed-off-by: Muchun Song <songmuchun@bytedance.com> >> Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com> > Acked-by: Johannes Weiner <hannes@cmpxchg.org> > > That metric's come up in our production environment recently as well, > it makes a lot of sense. > > In addition to outside competition, this also applies to downtimes > enforced by cpu.max - another cgroup usecase that is worth mentioning > in the changelog & code comment.
Thank you, I will add this and send patch-v2.
> Thanks
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