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Opened on 07/06/17 at 13:50:55

Closed on 07/10/17 at 07:49:06

Last modified on 11/09/17 at 06:27:14

#3063 closed enhancement (fixed)

Make the EDF scheduler the default SMP scheduler

Reported by: Sebastian Huber Owned by: Sebastian Huber
Priority: normal Milestone: 5.1
Component: config Version: 4.11
Severity: normal Keywords:
Cc: Blocked By:
Blocking:

Description

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), etc. use a one-to-one thread processor affinity for example.

Change History (5)

comment:1 Changed on 07/10/17 at 07:40:06 by Sebastian Huber <sebastian.huber@…>

In [changeset:"21389c061390cc04ea1d9882904daebfa86ee008/rtems" 21389c06/rtems]:

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.

comment:2 Changed on 07/10/17 at 07:49:06 by Sebastian Huber <sebastian.huber@…>

Resolution: → fixed
Status: assigned → closed

In [changeset:"90379988d69067bf4963c04496a75d47880461f8/rtems-docs" 9037998/rtems-docs]:

c-user: Update scheduler/task chapter

Reflect EDF SMP scheduler changes.

Close #3059.
Close #3063.

comment:3 Changed on 07/19/17 at 10:59:42 by Sebastian Huber <sebastian.huber@…>

In [changeset:"7ad82395c455951d1dcf458df5456d16a0b0563a/rtems" 7ad8239/rtems]:

smptests/smpscheduler01: Use right scheduler

Update #3063.

comment:4 Changed on 10/10/17 at 06:25:58 by Sebastian Huber

Component: SMP → config

comment:5 Changed on 11/09/17 at 06:27:14 by Sebastian Huber

Milestone: 4.12.0 → 5.1

Milestone renamed

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