diff options
| author | Syed Rameez Mustafa <rameezmustafa@codeaurora.org> | 2014-04-25 12:27:25 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 19:59:28 -0700 |
| commit | e640249dbade56af7bc968fce2f5ede230602e6e (patch) | |
| tree | 6457669720789e8b892b7328074289570a69a66c /kernel/sched | |
| parent | b7b5f7911932c94fa036d6d92a0aa2c9bf2c21b0 (diff) | |
sched/fair: Limit MAX_PINNED_INTERVAL for more frequent load balancing
Should the system get stuck in a state where load balancing is failing
due to all tasks being pinned, deferring load balancing for up to half
a second may cause further performance problems. Eventually all tasks
will not be pinned and load balancing should not be deferred for a great
length of time.
Change-Id: I06f93b5448353b5871645b9274ce4419dc9fae0f
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index cabc223ffd32..b04af1c436cc 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7699,7 +7699,7 @@ static struct rq *find_busiest_queue(struct lb_env *env, * Max backoff if we encounter pinned tasks. Pretty arbitrary value, but * so long as it is large enough. */ -#define MAX_PINNED_INTERVAL 512 +#define MAX_PINNED_INTERVAL 16 /* Working cpumask for load_balance and load_balance_newidle. */ DEFINE_PER_CPU(cpumask_var_t, load_balance_mask); |