From owner-cvs-all  Mon Sep 20  0:52:42 1999
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From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Mon, 20 Sep 1999 00:52:39 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/conf files.i386 src/sys/i386/i386
         mp_clock.c
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phk         1999/09/20 00:52:39 PDT

  Modified files:
    sys/i386/conf        files.i386 
  Added files:
    sys/i386/i386        mp_clock.c 
  Log:
  On PIIX4 based SMP systems use the PMTMR register for timecounting.
  
  It is about 2.5 microseconds or roughly 3 times faster to use this
  "PIIX" timecounter than the "i8254" timecounter.  Resolution is
  also 3 times better.
  
  The code cheats and don't register the PCI device, because other pieces
  of code want to use it too.
  
  Originally spotted by:  msmith
  
  Revision  Changes    Path
  1.269     +2 -1      src/sys/i386/conf/files.i386



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