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block, bfq: increase time window for waker detection

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Tests on slower machines showed current window to be way too
small. This commit increases it.

Tested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Paolo Valente
2021-01-22 19:19:45 +01:00
committed by Jens Axboe
parent d4fc3640ff
commit ab1fb47e33
1 changed files with 1 additions and 1 deletions
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block/bfq-iosched.c
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@@ -1931,7 +1931,7 @@ static void bfq_add_request(struct request *rq)
if (bfqd->last_completed_rq_bfqq && if (bfqd->last_completed_rq_bfqq &&
!bfq_bfqq_has_short_ttime(bfqq) && !bfq_bfqq_has_short_ttime(bfqq) &&
ktime_get_ns() - bfqd->last_completion < ktime_get_ns() - bfqd->last_completion <
200 * NSEC_PER_USEC) { 4 * NSEC_PER_MSEC) {
if (bfqd->last_completed_rq_bfqq != bfqq && if (bfqd->last_completed_rq_bfqq != bfqq &&
bfqd->last_completed_rq_bfqq != bfqd->last_completed_rq_bfqq !=
bfqq->waker_bfqq) { bfqq->waker_bfqq) {