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| author | Paul Turner <pjt@google.com> | 2012-10-04 13:18:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-10-24 10:27:27 +0200 |
| commit | f1b17280efbd21873d1db8631117bdbccbcb39a2 (patch) | |
| tree | 6c052571b44109b94490eef89765751816ab9c88 /kernel/sched/sched.h | |
| parent | bb17f65571e97a7ec0297571fb1154fbd107ad00 (diff) | |
| download | lwn-f1b17280efbd21873d1db8631117bdbccbcb39a2.tar.gz lwn-f1b17280efbd21873d1db8631117bdbccbcb39a2.zip | |
sched: Maintain runnable averages across throttled periods
With bandwidth control tracked entities may cease execution according to user
specified bandwidth limits. Charging this time as either throttled or blocked
however, is incorrect and would falsely skew in either direction.
What we actually want is for any throttled periods to be "invisible" to
load-tracking as they are removed from the system for that interval and
contribute normally otherwise.
Do this by moderating the progression of time to omit any periods in which the
entity belonged to a throttled hierarchy.
Signed-off-by: Paul Turner <pjt@google.com>
Reviewed-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120823141506.998912151@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 134928dc6f05..d13bce7a44ef 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -281,7 +281,8 @@ struct cfs_rq { u64 runtime_expires; s64 runtime_remaining; - u64 throttled_timestamp; + u64 throttled_clock, throttled_clock_task; + u64 throttled_clock_task_time; int throttled, throttle_count; struct list_head throttled_list; #endif /* CONFIG_CFS_BANDWIDTH */ |