diff options
| author | Syed Rameez Mustafa <rameezmustafa@codeaurora.org> | 2014-05-28 13:30:26 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 19:59:45 -0700 |
| commit | 754f66613135c2b554051544dd9148ac83bb725e (patch) | |
| tree | d23bc7cc37f930f4a9e84f8bd19e94ef9de52c68 /kernel/sysctl.c | |
| parent | 28d07e053974c173e3a62d38f54dabd21d111a41 (diff) | |
sched/fair: Introduce scheduler boost for low latency workloads
Certain low latency bursty workloads require immediate use of highest
capacity CPUs in HMP systems. Existing load tracking mechanisms may be
unable to respond to the sudden surge in the system load within the
latency requirements. Introduce the scheduler boost feature for such
workloads. While boost is in effect the scheduler bypasses regular load
based task placement and prefers highest capacity CPUs in the system
for all non-small fair sched class tasks. Provide both a kernel and
userspace API for software that may have apriori knowledge about the
system workload.
Change-Id: I783f585d1f8c97219e629d9c54f712318821922f
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
[joonwoop@codeaurora.org: fixed minor conflict in
include/linux/sched/sysctl.h.]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index cdc63fb78433..9fd5318d17f0 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -409,6 +409,13 @@ static struct ctl_table kern_table[] = { .mode = 0644, .proc_handler = sched_hmp_proc_update_handler, }, + { + .procname = "sched_boost", + .data = &sysctl_sched_boost, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = sched_boost_handler, + }, #endif /* CONFIG_SCHED_HMP */ #ifdef CONFIG_SCHED_DEBUG { |