The list archives are not public, so sorry if this is been discussed:
For the new intel nehalem (corei7) individual control over core freq and
power is supposedly supported. Is anyone working on getting this into
cpufreq?
I would like to be able to put a single core to the C6 state. Also to
set individual frequency of cores in a socket.
If I need to do it myself, should I look at the acpi driver?
/usr/src/linux-source-2.6.26/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
Also is x86_64 using the x86 acpi driver? There didn't seem to be one
the the x86_64 tree.
Thanks,
--Mike
(let me know if there is any other info that would be useful)
using 2.6.27-11 (ubuntu dist)
>From dmesg ACPI reports on C1-C3.
[ 2.590035] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
[ 2.590091] processor ACPI0007:00: registered as cooling_device0
[ 2.590094] ACPI: Processor [CPU0] (supports 8 throttling states)
# cpufreq-info
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to linux@xxxxxxxx, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0 2 4 6 8 10 12
14
hardware limits: 1.60 GHz - 2.93 GHz
available frequency steps: 2.93 GHz, 2.79 GHz, 2.66 GHz, 2.53 GHz,
2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz
available cpufreq governors: ondemand, userspace, conservative,
powersave, performance
current policy: frequency should be within 1.60 GHz and 2.93 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
--
To unsubscribe from this list: send the line "unsubscribe cpufreq" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
