From: Chengming Zhou <zhouchengming@bytedance.com>
To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
bristot@redhat.com
Cc: linux-kernel@vger.kernel.org, duanxiongchun@bytedance.com,
songmuchun@bytedance.com,
Chengming Zhou <zhouchengming@bytedance.com>
Subject: [PATCH 1/2] sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq
Date: Thu, 7 Apr 2022 10:17:28 +0800 [thread overview]
Message-ID: <20220407021729.16655-1-zhouchengming@bytedance.com> (raw)
Since commit 23127296889f ("sched/fair: Update scale invariance of PELT")
change to use rq_clock_pelt() instead of rq_clock_task(), we should also
use rq_clock_pelt() for throttled_clock_task_time and throttled_clock_task
accounting.
Fixes: 23127296889f ("sched/fair: Update scale invariance of PELT")
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
---
kernel/sched/fair.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d4bd299d67ab..e6fa5d1141b4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4846,7 +4846,7 @@ static int tg_unthrottle_up(struct task_group *tg, void *data)
cfs_rq->throttle_count--;
if (!cfs_rq->throttle_count) {
- cfs_rq->throttled_clock_task_time += rq_clock_task(rq) -
+ cfs_rq->throttled_clock_task_time += rq_clock_pelt(rq) -
cfs_rq->throttled_clock_task;
/* Add cfs_rq with load or one or more already running entities to the list */
@@ -4864,7 +4864,7 @@ static int tg_throttle_down(struct task_group *tg, void *data)
/* group is entering throttled state, stop time */
if (!cfs_rq->throttle_count) {
- cfs_rq->throttled_clock_task = rq_clock_task(rq);
+ cfs_rq->throttled_clock_task = rq_clock_pelt(rq);
list_del_leaf_cfs_rq(cfs_rq);
}
cfs_rq->throttle_count++;
@@ -5308,7 +5308,7 @@ static void sync_throttle(struct task_group *tg, int cpu)
pcfs_rq = tg->parent->cfs_rq[cpu];
cfs_rq->throttle_count = pcfs_rq->throttle_count;
- cfs_rq->throttled_clock_task = rq_clock_task(cpu_rq(cpu));
+ cfs_rq->throttled_clock_task = rq_clock_pelt(cpu_rq(cpu));
}
/* conditionally throttle active cfs_rq's from put_prev_entity() */
--
2.35.1
next reply other threads:[~2022-04-07 2:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-07 2:17 Chengming Zhou [this message]
2022-04-07 2:17 ` [PATCH 2/2] sched/fair: Delete useless condition in tg_unthrottle_up() Chengming Zhou
2022-04-07 21:00 ` Benjamin Segall
2022-04-08 7:16 ` Vincent Guittot
2022-04-07 20:57 ` [PATCH 1/2] sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq Benjamin Segall
2022-04-08 6:23 ` [External] " Chengming Zhou
2022-04-08 7:17 ` Vincent Guittot
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