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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-04-09 15:07:54 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-04-15 10:41:44 +0200 |
| commit | c5831a3f9af11228dbdaabaf01f69d37e55684ef (patch) | |
| tree | e9ddedd942f3f31d239820dfc4dbcef4cde0b09a /cpukit/posix/src/pthreadsetaffinitynp.c | |
| parent | rtems: Add task get/set scheduler (diff) | |
| download | rtems-c5831a3f9af11228dbdaabaf01f69d37e55684ef.tar.bz2 | |
score: Add clustered/partitioned scheduling
Clustered/partitioned scheduling helps to control the worst-case
latencies in the system. The goal is to reduce the amount of shared
state in the system and thus prevention of lock contention. Modern
multi-processor systems tend to have several layers of data and
instruction caches. With clustered/partitioned scheduling it is
possible to honour the cache topology of a system and thus avoid
expensive cache synchronization traffic.
We have clustered scheduling in case the set of processors of a system
is partitioned into non-empty pairwise-disjoint subsets. These subsets
are called clusters. Clusters with a cardinality of one are partitions.
Each cluster is owned by exactly one scheduler instance.
Diffstat (limited to 'cpukit/posix/src/pthreadsetaffinitynp.c')
| -rw-r--r-- | cpukit/posix/src/pthreadsetaffinitynp.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/cpukit/posix/src/pthreadsetaffinitynp.c b/cpukit/posix/src/pthreadsetaffinitynp.c index d9df75b8de..711d6dcaeb 100644 --- a/cpukit/posix/src/pthreadsetaffinitynp.c +++ b/cpukit/posix/src/pthreadsetaffinitynp.c @@ -48,7 +48,6 @@ int pthread_setaffinity_np( case OBJECTS_LOCAL: ok = _Scheduler_Set_affinity( - _Scheduler_Get( the_thread ), the_thread, cpusetsize, cpuset |