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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-14 13:03:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-14 13:03:00 -0700 |
| commit | bd9a3dba185ce6701b41f0341470d3f53bbbbaed (patch) | |
| tree | 176e732da067328e29582ed30c91e25ecbaf2c4b /kernel/sched/stats.h | |
| parent | 1df046ab1c6520911774911f8c710ca8e981305c (diff) | |
| parent | 34f26a15611afb03c33df6819359d36f5b382589 (diff) | |
| download | linux-stable-bd9a3dba185ce6701b41f0341470d3f53bbbbaed.tar.gz linux-stable-bd9a3dba185ce6701b41f0341470d3f53bbbbaed.tar.bz2 linux-stable-bd9a3dba185ce6701b41f0341470d3f53bbbbaed.zip | |
Merge tag 'sched-psi-2022-10-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull PSI updates from Ingo Molnar:
- Various performance optimizations, resulting in a 4%-9% speedup in
the mmtests/config-scheduler-perfpipe micro-benchmark.
- New interface to turn PSI on/off on a per cgroup level.
* tag 'sched-psi-2022-10-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/psi: Per-cgroup PSI accounting disable/re-enable interface
sched/psi: Cache parent psi_group to speed up group iteration
sched/psi: Consolidate cgroup_psi()
sched/psi: Add PSI_IRQ to track IRQ/SOFTIRQ pressure
sched/psi: Remove NR_ONCPU task accounting
sched/psi: Optimize task switch inside shared cgroups again
sched/psi: Move private helpers to sched/stats.h
sched/psi: Save percpu memory when !psi_cgroups_enabled
sched/psi: Don't create cgroup PSI files when psi_disabled
sched/psi: Fix periodic aggregation shut off
Diffstat (limited to 'kernel/sched/stats.h')
| -rw-r--r-- | kernel/sched/stats.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h index baa839c1ba96..84a188913cc9 100644 --- a/kernel/sched/stats.h +++ b/kernel/sched/stats.h @@ -107,6 +107,11 @@ __schedstats_from_se(struct sched_entity *se) } #ifdef CONFIG_PSI +void psi_task_change(struct task_struct *task, int clear, int set); +void psi_task_switch(struct task_struct *prev, struct task_struct *next, + bool sleep); +void psi_account_irqtime(struct task_struct *task, u32 delta); + /* * PSI tracks state that persists across sleeps, such as iowaits and * memory stalls. As a result, it has to distinguish between sleeps, @@ -201,6 +206,7 @@ static inline void psi_ttwu_dequeue(struct task_struct *p) {} static inline void psi_sched_switch(struct task_struct *prev, struct task_struct *next, bool sleep) {} +static inline void psi_account_irqtime(struct task_struct *task, u32 delta) {} #endif /* CONFIG_PSI */ #ifdef CONFIG_SCHED_INFO |