Date: Tue, 21 May 2002 15:26:36 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_mutex.c Message-ID: <200205212226.g4LMQaV68801@freefall.freebsd.org>
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jhb 2002/05/21 15:26:36 PDT
Modified files:
sys/kern kern_mutex.c
Log:
Add appropriate IA32 "pause" instructions to improve performanec on
Pentium 4's and newer IA32 processors. The "pause" instruction has been
verified by Intel to be a NOP on all currently existing IA32 processors
prior to the Pentium 4.
Revision Changes Path
1.95 +17 -1 src/sys/kern/kern_mutex.c
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