From: Yuyang Du <yuyang.du@intel.com>
To: peterz@infradead.org, mingo@kernel.org, linux-kernel@vger.kernel.org
Cc: bsegall@google.com, pjt@google.com, morten.rasmussen@arm.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
Yuyang Du <yuyang.du@intel.com>
Subject: [PATCH v4 0/5] sched/fair: Fix attach and detach sched avgs for task group change or sched class change
Date: Mon, 6 Jun 2016 08:20:36 +0800 [thread overview]
Message-ID: <1465172441-27727-1-git-send-email-yuyang.du@intel.com> (raw)
Hi Peter,
It seems the problem is worse, the attach twice issue can happen not only as
Vincent raised when task moves between groups, but also when switching to fair
class. In addition, for newly forked task, the detach and attach also have
problems.
Thanks a lot to Vincent. This new version mainly addresses his comments to
reword the description of the problem.
Thanks,
Yuyang
--
Yuyang Du (5):
sched/fair: Clean up attach_entity_load_avg()
sched/fair: Fix attaching task sched avgs twice when switching to
fair or changing task group
sched/fair: Skip detach sched avgs for new task when changing task
groups
sched/fair: Move load and util avgs from wake_up_new_task() to
sched_fork()
sched/fair: Add inline to detach_entity_load_evg()
kernel/sched/auto_group.c | 2 +-
kernel/sched/core.c | 13 ++++----
kernel/sched/fair.c | 76 ++++++++++++++++++++-------------------------
kernel/sched/sched.h | 6 ++--
4 files changed, 45 insertions(+), 52 deletions(-)
--
1.7.9.5
next reply other threads:[~2016-06-06 8:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-06 0:20 Yuyang Du [this message]
2016-06-06 0:20 ` [PATCH v4 1/5] sched/fair: Clean up attach_entity_load_avg() Yuyang Du
2016-06-06 13:30 ` Matt Fleming
2016-06-06 13:40 ` Vincent Guittot
2016-06-06 14:06 ` Matt Fleming
2016-06-06 14:27 ` Peter Zijlstra
2016-06-06 0:20 ` [PATCH v4 2/5] sched/fair: Fix attaching task sched avgs twice when switching to fair or changing task group Yuyang Du
2016-06-06 9:54 ` Peter Zijlstra
2016-06-06 19:38 ` Yuyang Du
2016-06-06 12:32 ` Vincent Guittot
2016-06-06 19:05 ` Yuyang Du
2016-06-07 8:09 ` Vincent Guittot
2016-06-07 18:16 ` Yuyang Du
2016-06-06 0:20 ` [PATCH v4 3/5] sched/fair: Skip detach sched avgs for new task when changing task groups Yuyang Du
2016-06-06 9:58 ` Peter Zijlstra
2016-06-06 14:03 ` Matt Fleming
2016-06-06 19:15 ` Yuyang Du
2016-06-06 0:20 ` [PATCH v4 4/5] sched/fair: Move load and util avgs from wake_up_new_task() to sched_fork() Yuyang Du
2016-06-06 0:20 ` [PATCH v4 5/5] sched/fair: Add inline to detach_entity_load_evg() Yuyang Du
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