diff options
| author | Quentin Perret <[email protected]> | 2018-12-03 09:56:23 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-01-27 12:29:37 +0100 |
| commit | 8d5d0cfb63cbcb4005e19a332b31d687b1d01e58 (patch) | |
| tree | e2a84b9053e709df25352a1ab4a07b83d464f1c1 /include/linux/sched | |
| parent | 62a8ddc93a8526eafbdc26e5ee3830e2e9f639e8 (diff) | |
sched/topology: Introduce a sysctl for Energy Aware Scheduling
In its current state, Energy Aware Scheduling (EAS) starts automatically
on asymmetric platforms having an Energy Model (EM). However, there are
users who want to have an EM (for thermal management for example), but
don't want EAS with it.
In order to let users disable EAS explicitly, introduce a new sysctl
called 'sched_energy_aware'. It is enabled by default so that EAS can
start automatically on platforms where it makes sense. Flipping it to 0
rebuilds the scheduling domains and disables EAS.
Signed-off-by: Quentin Perret <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
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Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux/sched')
| -rw-r--r-- | include/linux/sched/sysctl.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index a9c32daeb9d8..99ce6d728df7 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -83,4 +83,11 @@ extern int sysctl_schedstats(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); +#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) +extern unsigned int sysctl_sched_energy_aware; +extern int sched_energy_aware_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); +#endif + #endif /* _LINUX_SCHED_SYSCTL_H */ |