diff options
| author | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2017-05-10 15:43:29 +0530 |
|---|---|---|
| committer | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2017-05-31 08:33:48 +0530 |
| commit | 57fd979fc92aac87bc6745883940d32fbdeb4ac4 (patch) | |
| tree | 091e3dd0e0381f295f57e68b2fdc5ff96ee336df /kernel/sched/hmp.c | |
| parent | f37f0680d728df428d75278597402c53b34366b0 (diff) | |
core_ctl: un-isolate BIG CPUs more aggressively
The current algorithm to bring additional BIG CPUs is very
conservative. It works when BIG tasks alone run on BIG
cluster. When co-location and scheduler boost features
are activated, small/medium tasks also run on BIG cluster.
We don't want these tasks to downmigrate, when BIG CPUs are
available but isolated. The following changes are done to
un-isolate CPUs more aggressively.
(1) Round up the big_avg. When the big_avg indicates that
there are 1.5 tasks on an average in the last window, it
indicates that we need 2 BIG CPUs not 1 BIG CPU.
(2) Track the maximum number of running tasks in the last
window on all CPUs. If any of the CPU in a cluster has more
than 4 runnable tasks in the last window, bring an additional
CPU to help out.
Change-Id: Id05d9983af290760cec6d93d1bdc45bc5e924cce
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Diffstat (limited to 'kernel/sched/hmp.c')
| -rw-r--r-- | kernel/sched/hmp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/hmp.c b/kernel/sched/hmp.c index 0591975de3bf..37d24bb17c76 100644 --- a/kernel/sched/hmp.c +++ b/kernel/sched/hmp.c @@ -1602,7 +1602,7 @@ unsigned int nr_eligible_big_tasks(int cpu) int nr_big = rq->hmp_stats.nr_big_tasks; int nr = rq->nr_running; - if (cpu_max_possible_capacity(cpu) != max_possible_capacity) + if (!is_max_capacity_cpu(cpu)) return nr_big; return nr; |