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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/include/rtems/score/thread.h | |
| 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/include/rtems/score/thread.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/thread.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h index 77e105bf28..5215d6a8ce 100644 --- a/cpukit/score/include/rtems/score/thread.h +++ b/cpukit/score/include/rtems/score/thread.h @@ -33,13 +33,12 @@ #include <rtems/score/threadq.h> #include <rtems/score/watchdog.h> -#ifdef RTEMS_SMP -#if __RTEMS_HAVE_SYS_CPUSET_H__ -#include <sys/cpuset.h> -#include <rtems/score/cpuset.h> -#endif +#if defined(RTEMS_SMP) + #include <rtems/score/cpuset.h> #endif +struct Scheduler_Control; + #ifdef __cplusplus extern "C" { #endif @@ -517,6 +516,11 @@ struct Thread_Control_struct { * _Thread_Kill_zombies(). */ volatile bool is_executing; + + /** + * @brief The scheduler of this thread. + */ + const struct Scheduler_Control *scheduler; #endif #if __RTEMS_ADA__ |