From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Chengming Zhou <zhouchengming@bytedance.com>,
mingo@redhat.com, peterz@infradead.org,
vincent.guittot@linaro.org, rostedt@goodmis.org,
bsegall@google.com, vschneid@redhat.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 06/10] sched/fair: delete superfluous SKIP_AGE_LOAD
Date: Thu, 14 Jul 2022 14:33:04 +0200 [thread overview]
Message-ID: <71c7d48c-8ce8-9d43-d578-2a3c15dbd64b@arm.com> (raw)
In-Reply-To: <20220713040430.25778-7-zhouchengming@bytedance.com>
On 13/07/2022 06:04, Chengming Zhou wrote:
> There are three types of attach_entity_cfs_rq():
>
> 1. task migrate to CPU
> 2. task move to cgroup
> 3. task switched to fair from !fair
>
> The case1 and case2 already have sched_avg last_update_time
> reset to 0 when attach_entity_cfs_rq().
>
> We will make case3 also have last_update_time reset to 0 when
> attach_entity_cfs_rq() in the following patches.
>
> So it makes no difference whether SKIP_AGE_LOAD is set or not.
Wouldn't this patch make more sense after 09/10?
[...]
next prev parent reply other threads:[~2022-07-14 12:33 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-13 4:04 [PATCH v2 00/10] sched: task load tracking optimization and cleanup Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 01/10] sched/fair: combine detach into dequeue when migrating task Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 02/10] sched/fair: update comments in enqueue/dequeue_entity() Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 03/10] sched/fair: maintain task se depth in set_task_rq() Chengming Zhou
2022-07-14 12:30 ` Dietmar Eggemann
2022-07-14 13:03 ` [External] " Chengming Zhou
2022-07-18 7:16 ` Vincent Guittot
2022-07-13 4:04 ` [PATCH v2 04/10] sched/fair: remove redundant cpu_cgrp_subsys->fork() Chengming Zhou
2022-07-14 12:31 ` Dietmar Eggemann
2022-07-14 13:06 ` [External] " Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 05/10] sched/fair: reset sched_avg last_update_time before set_task_rq() Chengming Zhou
2022-07-14 12:31 ` Dietmar Eggemann
2022-07-19 8:49 ` Vincent Guittot
2022-07-13 4:04 ` [PATCH v2 06/10] sched/fair: delete superfluous SKIP_AGE_LOAD Chengming Zhou
2022-07-14 12:33 ` Dietmar Eggemann [this message]
2022-07-14 13:24 ` [External] " Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 07/10] sched/fair: use update_load_avg() to attach/detach entity load_avg Chengming Zhou
2022-07-15 11:18 ` Dietmar Eggemann
2022-07-15 16:21 ` [External] " Chengming Zhou
2022-07-19 10:29 ` Vincent Guittot
2022-07-20 13:40 ` Chengming Zhou
2022-07-20 15:34 ` Vincent Guittot
2022-07-21 13:56 ` Chengming Zhou
2022-07-21 14:13 ` Vincent Guittot
2022-07-19 15:02 ` Dietmar Eggemann
2022-07-20 13:43 ` Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 08/10] sched/fair: fix load tracking for new forked !fair task Chengming Zhou
2022-07-19 12:35 ` Vincent Guittot
2022-07-20 13:48 ` [External] " Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 09/10] sched/fair: stop load tracking when task switched_from_fair() Chengming Zhou
2022-07-14 12:33 ` Dietmar Eggemann
2022-07-14 13:43 ` [External] " Chengming Zhou
2022-07-15 11:15 ` Dietmar Eggemann
2022-07-15 16:35 ` Chengming Zhou
2022-07-19 13:20 ` Vincent Guittot
2022-07-27 10:55 ` Chengming Zhou
2022-07-13 4:04 ` [PATCH v2 10/10] sched/fair: delete superfluous set_task_rq_fair() Chengming Zhou
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