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> I would like to change upreempt_pri to default to 0 as this makes
> wakeups where the interrupted cpu schedules a thread on another cpu
> behave like as if it where scheduled on the interrupted cpu.
> For the case that the to be scheduled on cpu is the interrupted one,
> the behavior is like having upreempt_pri set to 0, as rescheduling
> happens on return too usermode while in the cross cpu case this might be
> delayed until the next timer interrupt.
> This change makes some sluggishness regarding X to go a way.
> (Solaris defaults to 0 here as well, I think the only reason to set it
> higher is on very big SMP machines where throughput is more important
> then latency)
i'm not sure how it can make much differences given that l_kpribase is
can you explain a little more?
or, even better, can you try to create a smaller test program to
demonstrate the sluggishness?
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