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| author | Glenn Elliott <gelliott@cs.unc.edu> | 2011-06-21 01:29:34 -0400 |
|---|---|---|
| committer | Andrea Bastoni <bastoni@cs.unc.edu> | 2011-08-27 11:58:39 -0400 |
| commit | 592eaca1409e55407e980f71b2ec604ca3610ba5 (patch) | |
| tree | 43cadd8d3f9cc150a7b108696bfabcddcff55650 /litmus/Makefile | |
| parent | fb8d6602af1cbc09115544056b872b976c6349c3 (diff) | |
Avoid needlessly costly migrations. CONFIG_SCHED_CPU_AFFINITY
Given a choice between several available CPUs (unlinked) on which
to schedule a task, let the scheduler select the CPU closest to
where that task was previously scheduled. Hopefully, this will
reduce cache migration penalties.
Notes: SCHED_CPU_AFFINITY is dependent upon x86 (only x86 is
supported at this time). Also PFair/PD^2 does not make use of
this feature.
Signed-off-by: Andrea Bastoni <bastoni@cs.unc.edu>
Diffstat (limited to 'litmus/Makefile')
| -rw-r--r-- | litmus/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/litmus/Makefile b/litmus/Makefile index ad9936e07b83..7338180f196f 100644 --- a/litmus/Makefile +++ b/litmus/Makefile | |||
| @@ -21,6 +21,7 @@ obj-y = sched_plugin.o litmus.o \ | |||
| 21 | 21 | ||
| 22 | obj-$(CONFIG_PLUGIN_CEDF) += sched_cedf.o | 22 | obj-$(CONFIG_PLUGIN_CEDF) += sched_cedf.o |
| 23 | obj-$(CONFIG_PLUGIN_PFAIR) += sched_pfair.o | 23 | obj-$(CONFIG_PLUGIN_PFAIR) += sched_pfair.o |
| 24 | obj-$(CONFIG_SCHED_CPU_AFFINITY) += affinity.o | ||
| 24 | 25 | ||
| 25 | obj-$(CONFIG_FEATHER_TRACE) += ft_event.o ftdev.o | 26 | obj-$(CONFIG_FEATHER_TRACE) += ft_event.o ftdev.o |
| 26 | obj-$(CONFIG_SCHED_TASK_TRACE) += sched_task_trace.o | 27 | obj-$(CONFIG_SCHED_TASK_TRACE) += sched_task_trace.o |