Fix interactivity buglet with autogroup and shares distribution re-write
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- v1 Latest2 patches 12 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | sched: move periodic share updates to entity_tick()kernel/ | +24 | 5 replies | |
| 2/2 | sched: charge unaccounted run-time on entity re-weightkernel/ | +5 | 7 replies |
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Cover letter [patch 0/2] Fix interactivity buglet with autogroup and shares distribution re-write
This should address the interactivity issues reported by Mike Galbraith:
https://lkml.org/lkml/2010/11/28/47
The root cause turns out to be a mis-ordering of weight updates and accounting outstanding execution time.
This is fixed by making update_curr() 'atomic' once more with respect to accounting, this allows us to then make sure any outstanding time is charged in the re-weight path (prior to the actual update).
Thank-you to everyone for their patience while we tracked this down,
- Paul