v1->v2: - Make a memcache for task_group to make sure that the allocated task_group object will always be on cacheline boundary even if debugging is turned on. - Scrap the original patch 3 and replace it with another one to disable load_avg update for root_task_group.
This patch series tries to reduce contention on task_group's load_avg to improve system performance. It also tries to optimize the use of idle_cpu() call in update_sg_lb_stats(). Waiman Long (3): sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() sched/fair: Move hot load_avg into its own cacheline sched/fair: Disable tg load_avg update for root_task_group kernel/sched/core.c | 36 ++++++++++++++++++++++++++++++++++-- kernel/sched/fair.c | 16 +++++++++++++--- kernel/sched/sched.h | 7 ++++++- 3 files changed, 53 insertions(+), 6 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
