Re: 2us Interrupt latency's for Linux 2.0.xx

Perry Harrington (pedward@sun4.apsoft.com)
Wed, 2 Sep 1998 16:18:53 -0700 (PDT)


I'm wondering, can the APIC be enabled for UP boards? If so, why
doesn't Linux enable the APIC as the default interrupt controller
for single processor Pentium+ systems?

--Perry

> >
> > > _external_ interrupts have much higher latencies. (especially as old
> > > XT-PIC interrupts halt the CPU for a considerable amount of time ... this
> > > is not the case with IO-APIC and inter-CPU interrupts.)
> > >
> > > -- mingo
> > >

-- 
Perry Harrington       Linux rules all OSes.    APSoft      ()
email: perry@apsoft.com 			Think Blue. /\

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