These 2 patches try to reduce contention on the load_avg and
runnable_avg values of the task_group structure in large NUMA
machine by:
patch 1: Move them into their own cacheline & reduce actual read/write
to them.
patch 2: Reduce the frequecy of doing the average computation.
Waiman Long (2):
sched: reduce contention on tg's load_avg & runnable_avg
sched, numa: reduce load/runnable_avg computation frequency
init/Kconfig | 13 ++++++++
kernel/sched/core.c | 1 +
kernel/sched/fair.c | 84 +++++++++++++++++++++++++++++++++++++++++++++-----
kernel/sched/sched.h | 29 ++++++++++++++++-
4 files changed, 117 insertions(+), 10 deletions(-)
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