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From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 4 Feb 2003 12:55:28 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/i386 simplelock.s
X-FreeBSD-CVS-Branch: RELENG_4
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jhb         2003/02/04 12:55:28 PST

  Modified files:        (Branch: RELENG_4)
    sys/i386/i386        simplelock.s 
  Log:
  Add 'pause' instructions to the spin loops in the simplelock code.  This
  improves performance for HT CPU's and there are reports that it improves
  performance on older CPU's in SMP systems as well.
  
  Revision  Changes    Path
  1.11.2.2  +6 -1      src/sys/i386/i386/simplelock.s

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