Re: [External] Re: [PATCH] psi: Add PSI_CPU_FULL state

2021-02-08 Thread Chengming Zhou
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

Re: [PATCH] psi: Add PSI_CPU_FULL state

2021-02-08 Thread Johannes Weiner
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-develo

[PATCH] psi: Add PSI_CPU_FULL state

2021-02-06 Thread Chengming Zhou
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 Signed-off-by: Muchun Song Signed-off-by: Chengming

[PATCH] psi: Add PSI_CPU_FULL state

2020-12-24 Thread Chengming Zhou
From: zhouchengming When I run a simple "perf bench sched pipe" test in a cgroup on my machine, the output of "watch -d -n 1 cpu.pressure" of this cgroup will report some avg10 10%-20%. It's strange because there is not any other process in the cgroup. Then I found that cpu contention/wait percen