Date: Tue, 4 Feb 2003 12:55:28 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 simplelock.s Message-ID: <200302042055.h14KtS1O073707@repoman.freebsd.org>
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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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