Date: Tue, 16 Jul 2002 10:58:22 -0700 (PDT) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 machdep.c swtch.s src/sys/i386/include asnames.h Message-ID: <200207161758.g6GHwMJk044948@freefall.freebsd.org>
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dillon 2002/07/16 10:58:22 PDT
Modified files: (Branch: RELENG_4)
sys/i386/i386 machdep.c swtch.s
sys/i386/include asnames.h
Log:
MFC i386/i386/machdep.c 1.520 and rearrange the original -stable code a
bit to look more like -current. Adds support for the 'machdep.cpu_idle_hlt'
sysctl on SMP machines. The default is still 0 for SMP since -stable has the
same non-fatal run-queue race that current has (a 1-tick run latency if the
race is lost). Setting the value to 1 will save power.
Tested: my Smart-UPS 1400 reports 81.2% utilization with cpu_idle_hlt
enabled and 81.9% with it disabled on one box, and 83.8% utilization with it
disabled on three boxes.
Revision Changes Path
1.385.2.24 +31 -0 src/sys/i386/i386/machdep.c
1.89.2.8 +5 -1 src/sys/i386/i386/swtch.s
1.44.2.7 +1 -0 src/sys/i386/include/asnames.h
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