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???
07/09/10 12:01
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 		 #177177 - I see (I think)
Responding to: ???'s previous message
Johan Smit said:
the idea of a co-operative system needs all tasks to complete before the scheduler runs again. This inevitably wastes processing time.

Andy Neil said:
Does it?

Johan Smit said:
The timer interrupt is asynchronous with anything else. How can one be certain that tasks are done before the interrupt fires unless tasks are shorter than the timer period?
If so, processor time is wasted.


Ah: So it's actually the fact that it's Time-Triggered that causes the "waste" - not (specifically) that it's a co-operative system ?


List of 23 messages in thread
TopicAuthorDate
co-operative scheduler            01/01/70 00:00      
   RE: This inevitably wastes processing time.            01/01/70 00:00      
      re - Separate display processor            01/01/70 00:00      
         I see (I think)            01/01/70 00:00      
            re - Separate display processor            01/01/70 00:00      
   Separate display processor?            01/01/70 00:00      
      re - Separate display processor            01/01/70 00:00      
   how can processing "waste processing time"            01/01/70 00:00      
      Answered here?            01/01/70 00:00      
      All multi-tasking with real-time requiremens suffer waste            01/01/70 00:00      
         re - Separate display processor            01/01/70 00:00      
            Parasitic newspapers?            01/01/70 00:00      
   I do not know your "Time Triggered Prioritised Cooperative S            01/01/70 00:00      
      re - Separate display processor            01/01/70 00:00      
         what does a time interval have to do with it?            01/01/70 00:00      
         TTPCS            01/01/70 00:00      
            re- TTPCS            01/01/70 00:00      
   No need for these canned "schedulers"            01/01/70 00:00      
      re - real time system            01/01/70 00:00      
         no, it does not            01/01/70 00:00      
            re- Scheduler            01/01/70 00:00      
      Timeslice timewaste            01/01/70 00:00      
         re - real time system            01/01/70 00:00      

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