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| author | Peng Wang <rocking@linux.alibaba.com> | 2020-06-16 09:04:07 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-06-25 14:45:44 +0300 |
| commit | 423d02e1463b21109106f52d94f7396b63731f3b (patch) | |
| tree | 1480796f2df9165105ef7ef86ba167d52c7c2864 /drivers/hid/hid-picolcd_cir.c | |
| parent | aa93cd53bc1b91b5f99c7b55e3dcc1ac98e99558 (diff) | |
| download | linux-423d02e1463b21109106f52d94f7396b63731f3b.tar.xz | |
sched/fair: Optimize dequeue_task_fair()
While looking at enqueue_task_fair and dequeue_task_fair, it occurred
to me that dequeue_task_fair can also be optimized as Vincent described
in commit 7d148be69e3a ("sched/fair: Optimize enqueue_task_fair()").
When encountering throttled cfs_rq, dequeue_throttle label can ensure
se not to be NULL, and rq->nr_running remains unchanged, so we can also
skip the early balance check.
Signed-off-by: Peng Wang <rocking@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/701eef9a40de93dcf5fe7063fd607bca5db38e05.1592287263.git.rocking@linux.alibaba.com
Diffstat (limited to 'drivers/hid/hid-picolcd_cir.c')
0 files changed, 0 insertions, 0 deletions