☰

英特尔睿频加速功能未显示

tag-icon • tag-icon cpu turbo-boost
英特尔睿频加速功能未显示

即使我有一个具有涡轮增压功能的 CPU，i7 第 8 代 8550U 涡轮增压也能达到 4.0 GHz。

  1. 我跑步时得到了这个：cpuid -1l6 | grep -i turbo

    Intel Turbo Boost Technology            = false
Intel Turbo Boost Max Technology 3.0    = false

  2. 当我在终端上运行 cpupower 时：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: 400 MHz - 1.80 GHz
  available cpufreq governors: performance powersave
  current policy: frequency should be within 400 MHz and 1.10 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 800 MHz (asserted by call to kernel)
  boost state support:
    Supported: no
    Active: no

  3. 运行后turbostat我得到：

    turbostat version 19.08.31 - Len Brown <[email protected]>
CPUID(0): GenuineIntel 0x16 CPUID levels; 0x80000008 xlevels; family:model:stepping 0x6:8e:a (6:142:10)
CPUID(1): SSE3 MONITOR - EIST TM2 TSC MSR ACPI-TM HT TM
CPUID(6): APERF, No-TURBO, DTS, PTM, HWP, HWPnotify, HWPwindow, HWPepp, No-HWPpkg, EPB
cpu6: MSR_IA32_MISC_ENABLE: 0x4000850089 (TCC EIST MWAIT PREFETCH No-TURBO)
CPUID(7): SGX
cpu6: MSR_IA32_FEATURE_CONTROL: 0x00000005 (Locked )
CPUID(0x15): eax_crystal: 2 ebx_tsc: 166 ecx_crystal_hz: 0
TSC: 1992 MHz (24000000 Hz * 166 / 2 / 1000000)
** CPUID(0x16): base_mhz: 2000 max_mhz: 4000 bus_mhz: 100 **
cpu6: MSR_MISC_PWR_MGMT: 0x00401cc0 (ENable-EIST_Coordination DISable-EPB DISable-OOB)
RAPL: 17476 sec. Joule Counter Range, at 15 Watts
cpu6: MSR_PLATFORM_INFO: 0x4043df1011400
4 * 100.0 = 400.0 MHz max efficiency frequency
20 * 100.0 = 2000.0 MHz base frequency
cpu6: MSR_IA32_POWER_CTL: 0x0024005d (C1E auto-promotion: DISabled)
cpu6: MSR_TURBO_RATIO_LIMIT: 0x25252828
** 37 * 100.0 = 3700.0 MHz max turbo 4 active cores **
** 37 * 100.0 = 3700.0 MHz max turbo 3 active cores **
** 40 * 100.0 = 4000.0 MHz max turbo 2 active cores **
** 40 * 100.0 = 4000.0 MHz max turbo 1 active cores **

我努力了：

cat /sys/devices/system/cpu/intel_pstate/no_turbo
1

echo 0 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
0
tee: /sys/devices/system/cpu/intel_pstate/no_turbo: Operation not permitted

sudo echo 0 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
0
tee: /sys/devices/system/cpu/intel_pstate/no_turbo: Operation not permitted

如能提供任何帮助，我们将不胜感激。:)

相关内容