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| author |   Peter Zijlstra <peterz@infradead.org> | 2017-09-06 12:51:31 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-09-07 09:29:31 +0200 |
| commit | a731ebe6f17bff9e7ca12ef227f9da4d5bdf8425 (patch) | |
| tree | bc8e65cc2ff460199206c3c80ce9f6b0527b364a /include/linux/cpuset.h | |
| parent | Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| download | linux-dev-a731ebe6f17bff9e7ca12ef227f9da4d5bdf8425.tar.xz linux-dev-a731ebe6f17bff9e7ca12ef227f9da4d5bdf8425.zip | |
sched/fair: Fix wake_affine_llc() balancing rules
Chris Wilson reported that the SMT balance rules got the +1 on the
wrong side, resulting in a bias towards the current LLC; which the
load-balancer would then try and undo.
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Fixes: 90001d67be2f ("sched/fair: Fix wake_affine() for !NUMA_BALANCING")
Link: http://lkml.kernel.org/r/20170906105131.gqjmaextmn3u6tj2@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/cpuset.h')
0 files changed, 0 insertions, 0 deletions