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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/score/src/threadinitialize.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/score/src/threadinitialize.c')
| -rw-r--r-- | cpukit/score/src/threadinitialize.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c index 153c1d0b13..f8e0e7d440 100644 --- a/cpukit/score/src/threadinitialize.c +++ b/cpukit/score/src/threadinitialize.c @@ -31,6 +31,7 @@ bool _Thread_Initialize( Objects_Information *information, Thread_Control *the_thread, + const Scheduler_Control *scheduler, void *stack_area, size_t stack_size, bool is_fp, @@ -50,7 +51,6 @@ bool _Thread_Initialize( bool extension_status; size_t i; bool scheduler_allocated = false; - const Scheduler_Control *scheduler; /* * Do not use _TLS_Size here since this will lead GCC to assume that this @@ -188,6 +188,7 @@ bool _Thread_Initialize( the_thread->is_scheduled = false; the_thread->is_in_the_air = false; the_thread->is_executing = false; + the_thread->scheduler = scheduler; #endif /* Initialize the CPU for the non-SMP schedulers */ @@ -199,7 +200,6 @@ bool _Thread_Initialize( the_thread->real_priority = priority; the_thread->Start.initial_priority = priority; - scheduler = _Scheduler_Get( _Thread_Get_executing() ); scheduler_allocated = _Scheduler_Allocate( scheduler, the_thread ); if ( !scheduler_allocated ) { goto failed; |