lkml.org 
[lkml]   [2016]   [Jun]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v5 0/5] sched/fair: Fix attach and detach sched avgs for task group change and sched class change
Date
Hi Peter,

The attach/detach twice problem is worse than Vincent reported.

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 also has a problem. This patchset attempts to address
all of those problems.

Thanks a lot to Vincent and Peter. This new version addresses their comments to
reword the changelog and comments. Also thanks to Matt for the suggestion to
fix the newly forked task's detach problem easier.

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: Move load and util avgs from wake_up_new_task() to
sched_fork()
sched/fair: Skip detach sched avgs for new task when changing task
groups
sched/fair: Add inline to detach_entity_load_evg()

kernel/sched/core.c | 5 +--
kernel/sched/fair.c | 96 ++++++++++++++++++++++++++++++--------------------
kernel/sched/sched.h | 2 +-
3 files changed, 61 insertions(+), 42 deletions(-)

--
1.7.9.5

\
 
 \ /
  Last update: 2016-06-09 09:21    [W:0.898 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site