HEADSUP: cpufreq import complete, acpi_throttling changed
Michael W. Oliver
michael at gargantuan.com
Tue Feb 8 06:23:22 PST 2005
On 2005-02-06T13:21:32-0800, Nate Lawson wrote:
> I've finished the major work of importing cpufreq. As part of this, the
> sysctls for acpi throttling have been removed. The power_profile script
> has been updated, so you can use performance/economy_cpu_freq= in
> rc.conf to set AC on/offline cpu frequencies. The acpi throttling
> support has been compiled into acpi_perf.ko so load that to get
> throttling. Do a sysctl dev.cpu to get an understanding of the cpufreq
> sysctls.
Nate,
Thanks for the hard work on cpufreq! I am running an AMD64 3400 CPU in
my lappy, and I don't see any difference in dev.cpu with cpufreq and/or
acpi_perf loaded. This is all I have:
dev.cpu.0.%desc: ACPI CPU (2 Cx states)
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.CPU0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
The above is the same for the following conditions:
o cpufreq AND acpi_perf NOT loaded
o cpufreq (without acpi_perf) loaded
o acpi_perf (without cpufreq) loaded
o cpufreq AND acpi_perf loaded
The acpi_ppc module does continue to work for me, however, yielding the
following additional OIDs from hw.acpi:
----------8<--------------
# sysctl hw.acpi.cpu
hw.acpi.cpu.cx_supported: C1/0 C2/80
hw.acpi.cpu.cx_lowest: C2
hw.acpi.cpu.cx_usage: 2.36% 97.63%
# kldload acpi_ppc
# sysctl hw.acpi.cpu
hw.acpi.cpu.cx_supported: C1/0 C2/80
hw.acpi.cpu.cx_lowest: C2
hw.acpi.cpu.cx_usage: 2.32% 97.67%
hw.acpi.cpu.px_control: -1
hw.acpi.cpu.px_highest: 0
hw.acpi.cpu.px_lowest: 2
hw.acpi.cpu.px_current: 2
hw.acpi.cpu.px_supported: 2200 1800 800
hw.acpi.cpu.px_usage: 3.33% 3.33% 93.33%
----------8<--------------
All the stuff you would normally ask for can be found here:
http://michael.gargantuan.com/sager_4750v/index.htm#Utility_Command_Output
Also, I had to build the cpufreq and acpi_perf modules manually, as they
weren't built automatically. Maybe they aren't "connected" to the build
for AMD64?
Thanks again, great work!
--
Mike Oliver
[see complete headers for contact information]
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