Re: Not able to scale the cpu-frequency

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On 12/27/2010 02:08 PM, JB wrote:
> First, make sure your system is up-to-date.
It is.
Here the Infos you requested:
[icehawk@icehawk-laptop linuxhome]$ lsmod |grep -i freq
cpufreq_ondemand        7262  0
acpi_cpufreq            6285  0
mperf                   1141  1 acpi_cpufreq

[icehawk@icehawk-laptop linuxhome]$ sudo cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 1000 MHz - 2.00 GHz
  available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: *frequency should be within 1000 MHz and 1000 MHz.*
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz (asserted by call to hardware).
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 1000 MHz - 2.00 GHz
  available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: *frequency should be within 1000 MHz and 1000 MHz*.
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz (asserted by call to hardware).
[icehawk@icehawk-laptop linuxhome]$ sudo cpufreq-set -c 1 --g userspace
-u 2000000
[icehawk@icehawk-laptop linuxhome]$ sudo cpufreq-set -c 0 --g userspace
-u 2000000
[icehawk@icehawk-laptop linuxhome]$ sudo cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 1000 MHz - 2.00 GHz
  available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: *frequency should be within 1000 MHz and 1000 MHz*.
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz (asserted by call to hardware).
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 1000 MHz - 2.00 GHz
  available frequency steps: 2.00 GHz, 1.67 GHz, 1.33 GHz, 1000 MHz
  available cpufreq governors: ondemand, userspace, performance
  current policy: *frequency should be within 1000 MHz and 1000 MHz.*
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz (asserted by call to hardware).
[icehawk@icehawk-laptop linuxhome]$ stress -t 30 -c 2 &
[1] 22884
[icehawk@icehawk-laptop linuxhome]$ stress: info: [22884] dispatching
hogs: 2 cpu, 0 io, 0 vm, 0 hdd

[icehawk@icehawk-laptop linuxhome]$ grep -i mhz /proc/cpuinfo
cpu MHz		: 1000.000
cpu MHz		: 1000.000
[icehawk@icehawk-laptop linuxhome]$ grep -i mhz /proc/cpuinfo
cpu MHz		: 1000.000
cpu MHz		: 1000.000
[icehawk@icehawk-laptop linuxhome]$ stress: info: [22884] successful run
completed in 30s

mfg
icehawk


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