On Fri, 2007-07-06 at 10:34 -0400, Steven Rostedt wrote: > thing is that in RT an IRQ thread might service a softirq if that > softirq thread is of the same priority as the IRQ thread. The difference > between an IRQ thread and a softirq thread is that the IRQ thread may > migrate but the softirq thread may not. So to do this performance > enhancement, we need to temporarily pin the IRQ thread to the CPU, which > is expensive (set_cpus_allowed). This would make it much simpler and > light weight to implement.
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