Messages in this thread | | | Date | Tue, 09 May 2006 10:58:00 -0400 | From | Mark Hounschell <> | Subject | Re: rt20 patch question |
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Daniel Walker wrote: > On Tue, 2006-05-09 at 08:23 -0400, Mark Hounschell wrote: >> Can I assume configuring 'Complete preemption' is the same as >> configuring ('Voluntary preemption' + 'Hardirq' + 'Softirq' + default >> proc settings)? > > Not Voluntary preemption, and I'm not sure what default proc settings is > referring too .
The proc settings or boot options to enable or disable hardirq or softirq threading that you have avaialable in Voluntary preemption.
> Complete preemption is like CONFIG_PREEMPT and softirq > and hardirq threading .. The preemption isn't voluntary, it's forced . >
Complete preemption you have no choice of threading hard or soft irqs. They are threaded.
So If I config Voluntary preemption + Hardirq and Softirq threading and do not disable hardirq or softirq via proc or boot cmdline, is that the same as configuring Complete preemption?
Mark
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