| Message ID | 20190822152037.15413-4-paolo.valente@linaro.org |
|---|---|
| State | Accepted |
| Commit | 17c3d2660268501d36b75c7c7083dc8f2bbb93c3 |
| Headers | show |
| Series | block, bfq: series of improvements and small fixes of the injection mechanism | expand |
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index e114282204f6..ddac93e910fa 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -2016,7 +2016,7 @@ static void bfq_add_request(struct request *rq) (bfqq->last_serv_time_ns > 0 && bfqd->rqs_injected && bfqd->rq_in_driver > 0)) && time_is_before_eq_jiffies(bfqq->decrease_time_jif + - msecs_to_jiffies(100))) { + msecs_to_jiffies(10))) { bfqd->last_empty_occupied_ns = ktime_get_ns(); /* * Start the state machine for measuring the
The update period of the injection limit has been tentatively set to 100 ms, to reduce fluctuations. This value however proved to cause, occasionally, the limit to be decremented for some bfq_queue only after the queue underwent excessive injection for a lot of time. This commit reduces the period to 10 ms. Signed-off-by: Paolo Valente <paolo.valente@linaro.org> --- block/bfq-iosched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.20.1