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author | yamuna <yamuna@ae88bc3d-4319-0410-8dbf-d08b4c9d3795> | 2003-06-19 15:41:29 +0000 |
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committer | yamuna <yamuna@ae88bc3d-4319-0410-8dbf-d08b4c9d3795> | 2003-06-19 15:41:29 +0000 |
commit | d921f385cb4b653c1c726b847fdf85188916d632 (patch) | |
tree | 591e334e937268a32e71e09b1ec288d13bf5dc13 | |
parent | 6991dbd934b6d8ece3a4422292c19d0a623532bd (diff) | |
download | ATCD-d921f385cb4b653c1c726b847fdf85188916d632.tar.gz |
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-rw-r--r-- | TAO/examples/RTScheduling/README | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/TAO/examples/RTScheduling/README b/TAO/examples/RTScheduling/README new file mode 100644 index 00000000000..a60f9938819 --- /dev/null +++ b/TAO/examples/RTScheduling/README @@ -0,0 +1,27 @@ +Pluggable Schedulers +===================== + +The Real-Time CORBA 2.0 specification provides interfaces for a framework that facilitates dynamic scheduling in distributed real-time systems. The specification introduces the following concepts: + +* Scheduling Segment - A sequence of code, on a single host, with +specific scheduling requirements +* Distributable Thread (DT) - A programming model abstraction for a +distributed task +* Pluggable Scheduler - Facilitate the use of multiple scheduling +disciplines +* Scheduling Points - To interact with the scheduler at the +application and ORB level + +This dir contains two pluggable schedulers: + +Fixed Priority Scheduler - This scheduler uses the OS scheduler to +schedule the various DTs dynamically entering and leaving the +system. The DTs are scheduled based on their importance. + +Most Important First (MIF) Scheduler - This scheduler uses a custom +MIF scheduler to schedule the DTs in the system. The tasks are +scheduled according to their importance. The scheduler maintains a +ready queue of DTs. When a DT enters the system it puts the DT in the +ready queue in order of its importance. It then activates the DT +of highest importance in the ready queue. So at any given time the +DT with the highest importance is running. |