[RTEMS Project] #3059: Add a simple processor affinity support to the EDF SMP scheduler

RTEMS trac trac at rtems.org
Mon Jul 10 07:40:06 UTC 2017


#3059: Add a simple processor affinity support to the EDF SMP scheduler
-----------------------------+------------------------------
 Reporter:  Sebastian Huber  |       Owner:  Sebastian Huber
     Type:  enhancement      |      Status:  assigned
 Priority:  normal           |   Milestone:  4.12.0
Component:  SMP              |     Version:  4.11
 Severity:  normal           |  Resolution:
 Keywords:                   |
-----------------------------+------------------------------

Comment (by Sebastian Huber <sebastian.huber@…>):

 In [changeset:"21389c061390cc04ea1d9882904daebfa86ee008/rtems"
 21389c06/rtems]:
 {{{
 #!CommitTicketReference repository="rtems"
 revision="21389c061390cc04ea1d9882904daebfa86ee008"
 score: Make EDF the default SMP scheduler

 The EDF SMP scheduler supports simple thread processor affinities
 (see #3059) with a small run-time overhead. The current default SMP
 scheduler lacks support for thread processor affinities at all. The EDF
 SMP scheduler offers a good feature set for most applications. So, use
 it by default. Run-time libraries like libgomp, MTAPI, work stealing
 schedulers, language interpreters (e.g. Erlang virtual machine),
 maintainence of per-processor data (e.g. Universal Memory Allocator
 (UMA)), etc. use a one-to-one thread processor affinity for example.

 Update #3063.
 }}}

--
Ticket URL: <http://devel.rtems.org/ticket/3059#comment:16>
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