From owner-freebsd-arch  Wed May 24 19: 8: 6 2000
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Date: Wed, 24 May 2000 19:08:00 -0700 (PDT)
From: Matthew Dillon <dillon@apollo.backplane.com>
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To: Chuck Paterson <cp@bsdi.com>
Cc: Terry Lambert <tlambert@primenet.com>, arch@FreeBSD.ORG
Subject: Re: Preemptive kernel on older X86 hardware 
References:  <200005250205.UAA16126@berserker.bsdi.com>
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    We've had very good luck encapsulating our MP lock code in real
    honest-to-god subroutines rather then trying to make them inline
    macros.  

    On intel anyway, subroutine calls are *cheap*, especially compared
    to the overhead of a locked instruction or even an L1 cache miss.

    It's a no-brainer.

						-Matt


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