From owner-freebsd-smp  Thu May  2 10: 4:56 2002
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Date: Thu, 02 May 2002 10:03:35 -0700
From: Terry Lambert <tlambert2@mindspring.com>
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To: John Baldwin <jhb@FreeBSD.org>
Cc: Jonathan Mini <mini@FreeBSD.org>,
	Andrew Gallatin <gallatin@cs.duke.edu>, freebsd-smp@FreeBSD.org
Subject: Re: hlt when idle?
References: <XFMail.20020502104501.jhb@FreeBSD.org>
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John Baldwin wrote:
> On 02-May-2002 Jonathan Mini wrote:
> > They're really proud of this solution,
> > because (they claim) it reduces contentions of clock-triggered events across
> > processors.
> 
> It probably does.

It definitely does, provided you are guaranteed that the clock
interrupt handler can always execute in less time than the
interval between clock interrupts.  Then you don't have to
contend on the global handler lock to ensure it only runs once.

-- Terry

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