Messages in this thread | | | Date | Sat, 8 Apr 2006 09:16:57 +0200 | From | Ingo Molnar <> | Subject | Re: RT task scheduling |
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* Bill Huey <billh@gnuppy.monkey.org> wrote:
> On Fri, Apr 07, 2006 at 07:56:20AM -0700, Darren Hart wrote: > > The rt-overload mechanism is distinct from load balancing. RT overload > > attempts to make sure the NR_CPUS highest priority runnable tasks are running > > on each of the available CPUs. This isn't load balancing, this is "system > > wide strict realtime priority scheduling" (SWSRPS). This scheduling should > > take place even if there are 1000 non RT tasks on CPU 0 and none on all the > > others. The load balancer would be responsible for distributing those 1000 > > non rt tasks to all the CPUs. > > I'm quite aware of what you're saying as well as a much of the > contents of the -rt patch. Please don't assume that I'm not aware of > this. The -rt patch doesn't do SWSRPS, [...]
to the contrary, the "RT overload" code in the -rt tree does strict, system-wide RT priority scheduling. That's the whole point of it.
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