From owner-freebsd-smp  Wed May  1 23:43:42 2002
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Date: Wed, 01 May 2002 23:43:09 -0700
From: Terry Lambert <tlambert2@mindspring.com>
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To: Andrew Gallatin <gallatin@cs.duke.edu>
Cc: John Baldwin <jhb@FreeBSD.org>, freebsd-smp@FreeBSD.org
Subject: Re: hlt when idle?
References: <15567.62317.677224.3470@grasshopper.cs.duke.edu>
		<XFMail.20020501161528.jhb@FreeBSD.org> <15568.20086.979721.992191@grasshopper.cs.duke.edu>
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Andrew Gallatin wrote:
>  > > Do both CPUs get clock interrupts on x86?
>  >
>  > No, the interrupts seem to be round-robin, but each clock intr is only
>  > sent to one CPU unlike on alpha where they are broadcast.
> 
> So each CPU gets (1/num_cpu) * hz  clock interrupts/sec?

Interrupt delivery isn't round-robin.  It just *seems* that way.

-- Terry

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