Messages in this thread | | | Date | Thu, 3 Sep 1998 16:44:08 -0400 (EDT) | From | George <> | Subject | Re: 2us Interrupt latency's for Linux 2.0.xx |
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On Wed, 2 Sep 1998, Perry Harrington wrote:
>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?
Single processor boards don't have an APIC or IO-APIC. If you read Documentation/SMP.txt, the note:
o Separate IO-APIC from SMP.
means it's on the agenda to allow the IO-APIC to be used by uniprocessor kernels running on SMP boards. (which, incidently, NT 4.0 can do.)
-George
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