Ubuntu-fr

Bob Parks

Utiliser AMD Turbo Core

Bonjour,

Je possède 2 PC équipés de CPU AMD (FX-6300 et A6-7470K). Ces derniers sont équipés avec la technologie Turbo Core permettant un dépassement temporaire de la fréquence de base en fonction du nombre de cœurs sollicités. Mais sur ces 2 CPU, elle ne semble pas fonctionner.
Pour infos :
- Les bios sont correctement paramétré avec Turbo Core = activé
- La modulation sous la fréquence de base fonctionne correctement (Cool n Quiet)
- les fichiers /sys/devices/system/cpu/cpufreq/boost et /sys/devices/system/cpu/cpu[x]/cpufreqest/cpb sont à 1
- les PC sont sous version 16.04 et 18.04
- Ci dessous les copies du compte rendu de la commande : cpupower frequency-info

analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 4.0 us.
  hardware limits: 1.40 GHz - 3.50 GHz
  available frequency steps: 3.50 GHz, 3.00 GHz, 2.50 GHz, 2.00 GHz, 1.40 GHz
  available cpufreq governors: conservative, ondemand, userspace, powersave, performance
  current policy: frequency should be within 1.40 GHz and 3.50 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 2.00 GHz.
  cpufreq stats: 3.50 GHz:1,95%, 3.00 GHz:1,01%, 2.50 GHz:3,23%, 2.00 GHz:9,78%, 1.40 GHz:84,02%  (4721)
  boost state support:
    Supported: yes
    Active: yes

analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 4.0 us
  hardware limits: 1.40 GHz - 3.70 GHz
  available frequency steps:  3.70 GHz, 3.50 GHz, 3.00 GHz, 2.60 GHz, 1.90 GHz, 1.40 GHz
  available cpufreq governors: conservative ondemand userspace powersave performance schedutil
  current policy: frequency should be within 1.40 GHz and 3.70 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 1.77 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes

Merci pour vos réponses