Messages in this thread | | | From | Lei Wen <> | Subject | [PATCH V3 0/2] sched: add trace event for per-entity tracking | Date | Tue, 2 Jul 2013 20:15:04 +0800 |
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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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