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Forum Topic - about sporadic scheduling: (3 Items)

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wang fenghua

12/07/2010 2:26 AM

post77564

in the document "system architecture",it introduces sporadic scheduling.I have a problem follow:
Under sporadic scheduling, a thread’s priority can oscillate dynamically between a foreground or normal priority and a 
background or low priority.-----------the thread can run under background??how it run in this mode?

please help me ,thanks!

Thomas Haupt

12/07/2010 3:02 AM

post77566

Re: about sporadic scheduling

I'm not sure I fully understand what your question is...  If it is, "why could the thread run at all if it has a low 
priority" - that's rather obvious: If no higher-priority threads are currently occupying the CPU(s), the lo-prio-one 
will get running.

- Thomas

wang fenghua

12/07/2010 3:50 AM

post77568

Re: about sporadic scheduling

sorry for my unclear description.
I'm a C programmer, I first heard about the thread can run in background. So I ask whether the thread run in the 
background and how run.

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