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| author | Dongsheng Yang <yangds.fnst@cn.fujitsu.com> | 2016-03-22 16:37:08 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-31 10:48:54 +0200 |
| commit | d740037fac7052e49450f6fa1454f1144a103b55 (patch) | |
| tree | bebe1a3316f8f1742232d6aad1c3d616b7f529ed /security | |
| parent | 5ca3726af7f66a8cc71ce4414cfeb86deb784491 (diff) | |
| download | linux-d740037fac7052e49450f6fa1454f1144a103b55.tar.bz2 | |
sched/cpuacct: Split usage accounting into user_usage and sys_usage
Sometimes, cpuacct.usage is not detailed enough to see how much CPU
usage a group had. We want to know how much time it used in user mode
and how much in kernel mode.
This patch introduces more files to give this information:
# ls /sys/fs/cgroup/cpuacct/cpuacct.usage*
/sys/fs/cgroup/cpuacct/cpuacct.usage
/sys/fs/cgroup/cpuacct/cpuacct.usage_percpu
/sys/fs/cgroup/cpuacct/cpuacct.usage_user
/sys/fs/cgroup/cpuacct/cpuacct.usage_percpu_user
/sys/fs/cgroup/cpuacct/cpuacct.usage_sys
/sys/fs/cgroup/cpuacct/cpuacct.usage_percpu_sys
... while keeping the ABI with the existing counter.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
[ Ported to newer kernels. ]
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/aa171da036b520b51c79549e9b3215d29473f19d.1458635566.git.zhaolei@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions