diff options
| author | Josh Don <joshdon@google.com> | 2022-06-29 14:14:26 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-07-04 09:23:07 +0200 |
| commit | 1fcf54deb767d474181ad7cf33c92bb2a33607fb (patch) | |
| tree | 5f7d7572e4750a90f8c2a97deb74f159d65373b7 /include/linux | |
| parent | b812fc9768e0048582c8e18d7b66559c1758dde1 (diff) | |
sched/core: add forced idle accounting for cgroups
4feee7d1260 previously added per-task forced idle accounting. This patch
extends this to also include cgroups.
rstat is used for cgroup accounting, except for the root, which uses
kcpustat in order to bypass the need for doing an rstat flush when
reading root stats.
Only cgroup v2 is supported. Similar to the task accounting, the cgroup
accounting requires that schedstats is enabled.
Signed-off-by: Josh Don <joshdon@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lkml.kernel.org/r/20220629211426.3329954-1-joshdon@google.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cgroup-defs.h | 4 | ||||
| -rw-r--r-- | include/linux/kernel_stat.h | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 1bfcfb1af352..025fd0e84a31 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -287,6 +287,10 @@ struct css_set { struct cgroup_base_stat { struct task_cputime cputime; + +#ifdef CONFIG_SCHED_CORE + u64 forceidle_sum; +#endif }; /* diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 69ae6b278464..ddb5a358fd82 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -28,6 +28,9 @@ enum cpu_usage_stat { CPUTIME_STEAL, CPUTIME_GUEST, CPUTIME_GUEST_NICE, +#ifdef CONFIG_SCHED_CORE + CPUTIME_FORCEIDLE, +#endif NR_STATS, }; @@ -115,4 +118,8 @@ extern void account_process_tick(struct task_struct *, int user); extern void account_idle_ticks(unsigned long ticks); +#ifdef CONFIG_SCHED_CORE +extern void __account_forceidle_time(struct task_struct *tsk, u64 delta); +#endif + #endif /* _LINUX_KERNEL_STAT_H */ |