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[SOLVED] cpupower does not show boost frequencies
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alogim
Tux's lil' helper
Tux's lil' helper


Joined: 21 Aug 2015
Posts: 95

PostPosted: Tue Oct 02, 2018 9:42 am    Post subject: [SOLVED] cpupower does not show boost frequencies Reply with quote

Good morning everyone.
On my desktop computer with an Intel Core i5-3570k with 4 cores, when running cpupower frequency-info I can see, among the other things, the boost state frequencies. In fact, I can see something like 3.80 GHz for 1 core, 3.70 GHz for 2 cores, 3.60 GHz for 3 or 4 cores.

When I run it on my notebook, however, I only get the following:
Code:
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:  Cannot determine or is not supported.
  hardware limits: 400 MHz - 4.00 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 400 MHz and 4.00 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 988 MHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes


  • It says the boost is both supported and active (in fact I can see that the frequencies vary according to the need), however the frequencies are not listed here. Any idea why?
  • It also says the frequency range goes from 400 up to 4000 MHz, however the minimum I saw so far is 700 MHz (right now while I am writing this, I check it through CPU frequency monitor embedded in my Xfce desktop panel and through cpu-power itself
). Is this normal as well?
_________________
Desktop: i5-3570k - 2x4 GB - Sapphire HD 7950 Dual-X - 500 GB WD Caviar Black - Dell SE2717H 27"
Laptop: HP EliteBook 850 G5 - i7-8550U - 1x16GB - Intel UHD 620 - 512 GB Samsung NVMe SSD
Phone: OnePlus 5T - SD835 - 8 GB - Adreno 540 - 128 GB


Last edited by alogim on Fri Oct 05, 2018 7:28 am; edited 1 time in total
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krinn
Watchman
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Joined: 02 May 2003
Posts: 6855

PostPosted: Wed Oct 03, 2018 8:19 am    Post subject: Reply with quote

i have no frequencies too
Code:
LC_ALL=C 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:  Cannot determine or is not supported.
  hardware limits: 800 MHz - 4.40 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 800 MHz and 4.40 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 4.01 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes


if you want turbo freq, i7z can give you that
Code:
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is  44x/44x/44x/44x


for your second question, no real answer, but a logical one would be that 400mhz might be too low to run your system, and with its needs, 700mhz is the minimum ; you might lower your system need to see (no gui per example).
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alogim
Tux's lil' helper
Tux's lil' helper


Joined: 21 Aug 2015
Posts: 95

PostPosted: Fri Oct 05, 2018 7:28 am    Post subject: Reply with quote

I understand. Thank you for your reply :)
_________________
Desktop: i5-3570k - 2x4 GB - Sapphire HD 7950 Dual-X - 500 GB WD Caviar Black - Dell SE2717H 27"
Laptop: HP EliteBook 850 G5 - i7-8550U - 1x16GB - Intel UHD 620 - 512 GB Samsung NVMe SSD
Phone: OnePlus 5T - SD835 - 8 GB - Adreno 540 - 128 GB
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