Date: Sun, 3 May 2009 17:47:21 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/include clock.h src/sys/amd64/isa clock.c src/sys/i386/bios apm.c src/sys/i386/include clock.h src/sys/i386/isa clock.c src/sys/i386/xen clock.c src/sys/isa atrtc.c rtc.h src/sys/pc98/cbus clock.c Message-ID: <200905031748.n43HmRX7091485@repoman.freebsd.org>
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mav 2009-05-03 17:47:21 UTC
FreeBSD src repository
Modified files:
sys/amd64/include clock.h
sys/amd64/isa clock.c
sys/i386/bios apm.c
sys/i386/include clock.h
sys/i386/isa clock.c
sys/i386/xen clock.c
sys/isa atrtc.c rtc.h
sys/pc98/cbus clock.c
Log:
SVN rev 191766 on 2009-05-03 17:47:21Z by mav
Rename statclock_disable variable to atrtcclock_disable that it actually is,
and hide it inside of atrtc driver. Add new tunable hint.atrtc.0.clock
controlling it. Setting it to 0 disables using RTC clock as stat-/
profclock sources.
Teach i386 and amd64 SMP platforms to emulate stat-/profclocks using i8254
hardclock, when LAPIC and RTC clocks are disabled.
This allows to reduce global interrupt rate of idle system down to about
100 interrupts per core, permitting C3 and deeper C-states provide maximum
CPU power efficiency.
Revision Changes Path
1.63 +0 -1 src/sys/amd64/include/clock.h
1.246 +15 -21 src/sys/amd64/isa/clock.c
1.153 +2 -1 src/sys/i386/bios/apm.c
1.65 +0 -1 src/sys/i386/include/clock.h
1.251 +15 -21 src/sys/i386/isa/clock.c
1.10 +0 -1 src/sys/i386/xen/clock.c
1.249 +26 -0 src/sys/isa/atrtc.c
1.15 +2 -0 src/sys/isa/rtc.h
1.172 +0 -1 src/sys/pc98/cbus/clock.c
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