Hello, There seems to be no freuqency scaling on my machine. The frequencies shown by kstat remain at the highest possible value.
The output from kstat (for the first one of the eight virtual CPUs):
module: cpu_info instance: 0
name: cpu_info0 class: misc
brand Intel(r) Core(tm) i7 CPU
Q 820 @ 1.73GHz
cache_id 0
clock_MHz 1733
clog_id 0
core_id 0
cpu_type i386
crtime 41,803748237
current_clock_Hz 1734000000
current_cstate 3
family 6
fpu_type i387 compatible
chip_id 0
implementation x86 (chipid 0x0 GenuineIntel
106E5 family 6 model 30 step 5 clock 1733 MHz)
model 30
ncore_per_chip 4
ncpu_per_chip 8
pg_id 5
pkg_core_id 0
snaptime 61391,9925084
socket_type Unknown
state on-line
state_begin 1280057052
stepping 5
supported_frequencies_Hz
1199000000:1333000000:1466000000:1599000000:1733000000:1734000000
supported_max_cstates 3
vendor_id GenuineIntel
This is in my /etc/power.conf:
autopm default
autoS3 default
cpu-threshold 1s
autoshutdown 30 9:00 9:00
noshutdown
cpupm enable
BTW, the frequency value seems to be the TurboBoost „virtual frequency“... This
is quite surprising, especially when it's shown for all the eight virtual CPUs
at once all the time.
Is this a known issue or have I just forgotten to configure something? This is
a ThinkPad W510 and frequency scaling works just fine on this machine under
Linux.
Andrej
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