Thanks for the per-entity tracking feature, we could know the details of
each task by its help.
This patch add its trace support, so that we could quickly know the system
status in a large time scale.
The "cfs_rq->runnable_load_avg/cfs_rq->load.weight" is useful in identify
load distribution status in the whole system
With those pre-embedded tracepoint, we could make our life easy over tracking
the system load, especially since the per-entity load tracking is recently
added,
people may want to use those trace point to get better understanding for
this new feature.
V3: make trace events passing parameter being simple, and only extend
its detail in the header file definition. Thanks Peter for pointing out
this.
V2: Abstract sched_cfs_rq_runnable_load and sched_cfs_rq_blocked_load using
sched_cfs_rq_load_contri_template. Thanks Kamalesh for this contribution!
Lei Wen (2):
sched: add trace events for task and rq usage tracking
sched: update cfs_rq weight earlier in enqueue_entity
include/trace/events/sched.h | 73 ++++++++++++++++++++++++++++++++++++++++++
kernel/sched/fair.c | 31 ++++++++++++++++--
2 files changed, 101 insertions(+), 3 deletions(-)
--
1.7.10.4
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