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| author | Srikar Dronamraju <[email protected]> | 2018-06-20 22:32:53 +0530 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-07-25 11:41:08 +0200 |
| commit | 2d4056fafa196e1ab4e7161bae4df76f9602d56d (patch) | |
| tree | 42130bb707680ff1ccf58db6109a10450b407e83 /net/lapb/lapb_subr.c | |
| parent | 0ad4e3dfe6cf3f207e61cbd8e3e4a943f8c1ad20 (diff) | |
sched/numa: Remove numa_has_capacity()
task_numa_find_cpu() helps to find the CPU to swap/move the task to.
It's guarded by numa_has_capacity(). However node not having capacity
shouldn't deter a task swapping if it helps NUMA placement.
Further load_too_imbalanced(), which evaluates possibilities of move/swap,
provides similar checks as numa_has_capacity.
Hence remove numa_has_capacity() to enhance possibilities of task
swapping even if load is imbalanced.
Running SPECjbb2005 on a 4 node machine and comparing bops/JVM
JVMS LAST_PATCH WITH_PATCH %CHANGE
16 25657.9 25804.1 0.569
1 74435 73413 -1.37
Signed-off-by: Srikar Dronamraju <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions