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| author | Dietmar Eggemann <[email protected]> | 2021-06-01 08:36:16 +0000 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2021-06-17 12:11:42 +0000 |
| commit | 83c5e9d573e1f0757f324d01adb6ee77b49c3f0e (patch) | |
| tree | 8626b42b1790e2a912c6986cfa3832e4b7da0f7f /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | sched/pelt: Check that *_avg are null when *_sum are (diff) | |
| download | kernel-83c5e9d573e1f0757f324d01adb6ee77b49c3f0e.tar.gz kernel-83c5e9d573e1f0757f324d01adb6ee77b49c3f0e.zip | |
sched/fair: Return early from update_tg_cfs_load() if delta == 0
In case the _avg delta is 0 there is no need to update se's _avg
(level n) nor cfs_rq's _avg (level n-1). These values stay the same.
Since cfs_rq's _avg isn't changed, i.e. no load is propagated down,
cfs_rq's _sum should stay the same as well.
So bail out after se's _sum has been updated.
Signed-off-by: Dietmar Eggemann <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Vincent Guittot <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions