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| author | Peter Zijlstra <peterz@infradead.org> | 2012-03-01 15:04:46 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-03-12 20:43:17 +0100 |
| commit | c308b56b5398779cd3da0f62ab26b0453494c3d4 (patch) | |
| tree | b2d90bd6f8ebbbeaae97f4ef319f7e22fcc77436 /drivers/virtio/virtio_balloon.c | |
| parent | 8e3fabfde445a872c8aec2296846badf24d7c8b4 (diff) | |
| download | linux-c308b56b5398779cd3da0f62ab26b0453494c3d4.tar.gz linux-c308b56b5398779cd3da0f62ab26b0453494c3d4.tar.bz2 linux-c308b56b5398779cd3da0f62ab26b0453494c3d4.zip | |
sched: Fix nohz load accounting -- again!
Various people reported nohz load tracking still being wrecked, but Doug
spotted the actual problem. We fold the nohz remainder in too soon,
causing us to loose samples and under-account.
So instead of playing catch-up up-front, always do a single load-fold
with whatever state we encounter and only then fold the nohz remainder
and play catch-up.
Reported-by: Doug Smythies <dsmythies@telus.net>
Reported-by: LesÅ=82aw Kope=C4=87 <leslaw.kopec@nasza-klasa.pl>
Reported-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-4v31etnhgg9kwd6ocgx3rxl8@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/virtio/virtio_balloon.c')
0 files changed, 0 insertions, 0 deletions