diff options
| author | Joonwoo Park <joonwoop@codeaurora.org> | 2016-03-28 18:27:47 -0700 |
|---|---|---|
| committer | Jeevan Shriram <jshriram@codeaurora.org> | 2016-04-22 15:05:24 -0700 |
| commit | 2e0ebb0155f275b24a5feedfc8f28c5225fb8db6 (patch) | |
| tree | 6fb03d69b4d247336db34db14a8aa28b5379cde2 /init | |
| parent | d4ca4d767f4c8a64ab212ddf2a9356c316de4f80 (diff) | |
sched: add option whether CPU C-state is used to guide task placement
There are CPUs that don't have an obvious low power mode exit latency
penalty. Add a new Kconfig CONFIG_SCHED_HMP_CSTATE_AWARE which controls
whether CPU C-state is used to guide task placement.
CRs-fixed: 1006303
Change-Id: Ie8dbab8e173c3a1842d922f4d1fbd8cc4221789c
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index ad08a40a304b..9ad1ae9d9da8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1162,6 +1162,14 @@ config SCHED_HMP in their instructions per-cycle capability or the maximum frequency they can attain. +config SCHED_HMP_CSTATE_AWARE + bool "CPU C-state aware scheduler" + depends on SCHED_HMP + help + This feature will let the HMP scheduler optimize task placement + with CPUs C-state. If this is enabled, scheduler places tasks + onto the shallowest C-state CPU among the most power efficient CPUs. + config CHECKPOINT_RESTORE bool "Checkpoint/restore support" if EXPERT select PROC_CHILDREN |