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My cpu is running at 1.2GHz always(powersave).
Below error is showing when setting ondemand governor.
sudo cpupower frequency-set -g ondemand
Setting cpu: 0
Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
- Trying to set an invalid policy?
- Trying to set a specific frequency, but userspace governor is not available,
for example because of hardware which cannot be set to a specific frequency
or because the userspace governor isn't loaded?
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post your information regarding
lscpu
cpupower frequency-info
uname-a
maybe the ondemand governor is deprecated for your cpu
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Check if the governor is available for your CPU and post the output of
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
$ zcat /proc/config.gz | grep CONFIG_CPU_FREQ_GOV_
Also, take a look on the wiki: https://wiki.archlinux.org/index.php/CP … _governors
Last edited by mauritiusdadd (2015-07-29 06:47:31)
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Check if the governor is available for your CPU and post the output of
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors $ zcat /proc/config.gz | grep CONFIG_CPU_FREQ_GOV_
Also, take a look on the wiki: https://wiki.archlinux.org/index.php/CP … _governors
performance powersave
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
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post your information regarding
lscpu
cpupower frequency-info
uname-a
maybe the ondemand governor is deprecated for your cpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 58
Model name: Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz
Stepping: 9
CPU MHz: 1296.937
CPU max MHz: 2400.0000
CPU min MHz: 1200.0000
BogoMIPS: 4791.06
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 3072K
NUMA node0 CPU(s): 0-3
cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 0.97 ms.
hardware limits: 1.20 GHz - 2.40 GHz
available cpufreq governors: performance, powersave
current policy: frequency should be within 1.20 GHz and 2.40 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 1.24 GHz.
boost state support:
Supported: no
Active: no
25500 MHz max turbo 4 active cores
25500 MHz max turbo 3 active cores
25500 MHz max turbo 2 active cores
25500 MHz max turbo 1 active cores
uname -a
Linux arch 4.1.2-2-ARCH #1 SMP PREEMPT Wed Jul 15 08:30:32 UTC 2015 x86_64 GNU/Linux
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Intel doesn't use the acpi_cpufreq governors by default, it uses intel_pstate, which has two internal governors, powersave (equivalent to acpi_cpufreq ondemand) and performance.
Unless you have very good reason otherwise (intel_pstate is known to act up with some cpu/kernel combinations), don't change that.
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but it is running at 1.2GHz at min continuously even in idle state
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No, it's not. Install turbostat and run it in debug mode (sudo turbostat --debug). Does Avg_MHz show a low number? Do the CPUs spend most of their time in the c6 state? If the answer to both is "yes", everything is fine.
If you think battery life should be longer than it is, you can disable intel_pstate, see if it makes a difference. It probably won't.
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CPU min MHz: 1200.0000
hardware limits: 1.20 GHz - 2.40 GHz
This seems to be the minimum frequency of this cpu model.
I put at button on it. Yes. I wish to press it, but I'm not sure what will happen if I do. (Gune | Titan A.E.)
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