kernel-ark/arch/i386/kernel/cpu
Venkatesh Pallipadi d395bf12d1 [ACPI] Reduce acpi-cpufreq switching latency by 50%
The acpi-cpufreq driver does a P-state get after a P-state set
to verify whether set went through successfully. This test
is kind of redundant as set goes throught most of the times,
and the test is also expensive as a get of P-states can
take a lot of time (same as a set operation) as it goes
through SMM mode. Effectively, we are doubling the P-state
latency due to this get opertion.

momdule parameter "acpi_pstate_strict" restores orginal paranoia.

http://bugzilla.kernel.org/show_bug.cgi?id=5129

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-26 22:22:33 -04:00
..
cpufreq [ACPI] Reduce acpi-cpufreq switching latency by 50% 2005-08-26 22:22:33 -04:00
mcheck
mtrr
amd.c
centaur.c
changelog
common.c
cpu.h
cyrix.c
intel_cacheinfo.c [PATCH] x86_64: When running cpuid4 need to run on the correct CPU 2005-07-28 21:46:01 -07:00
intel.c
Makefile
nexgen.c
proc.c
rise.c
transmeta.c [PATCH] transmeta: CONFIG_PROC_FS=n build fix 2005-08-01 21:38:00 -07:00
umc.c