1. Start accumulating service_from_wr when async queues are weight raised.
The service_from_wr for async queues is accumulated and checked to finish
weight-raise as sync queues. We need to charge service_from_wr for async
queues about to weight-raise.
2. Restart accumulating service_from_wr when queues are deemed interactive
again The weight-raising period is restarted when queues are deemed
interactive again in bfq_add_request. It's more reasonable to restart
service_from_wr accumulating too.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxx>
---
block/bfq-iosched.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 261ba2d63925..a46e49de895a 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -1726,6 +1726,7 @@ static void bfq_update_bfqq_wr_on_rq_arrival(struct bfq_data *bfqd,
2 * bfq_min_budget(bfqd));
} else if (old_wr_coeff > 1) {
if (interactive) { /* update wr coeff and duration */
+ bfqq->service_from_wr = 0;
bfqq->wr_coeff = bfqd->bfq_wr_coeff;
bfqq->wr_cur_max_time = bfq_wr_duration(bfqd);
} else if (in_burst)
@@ -2311,6 +2312,7 @@ static void bfq_add_request(struct request *rq)
time_is_before_jiffies(
bfqq->last_wr_start_finish +
bfqd->bfq_wr_min_inter_arr_async)) {
+ bfqq->service_from_wr = 0;
bfqq->wr_coeff = bfqd->bfq_wr_coeff;
bfqq->wr_cur_max_time = bfq_wr_duration(bfqd);
--
2.30.0
