如何启用Turbo-boost

几年前我在Ubuntu 12.04下购买了戴尔XPS 13（开发版）

我已经升级到Ubuntu 16.04，从那以后我注意到我的计算机在某些繁重的任务上变得比以前慢了。

我也注意到我的计算机在繁重的任务中变得不那么吵了，看起来我的I7 Turbo增强不会起作用。

将动力发送到4个触发器，均匀发动机显示：

CPU Avg_MHz %Busy Bzy_MHz TSC_MHz - 602 100.00 603 2595 0 611 100.00 611 2597 1 594 100.00 595 2594 2 610 100.00 612 2594 3 594 100.00 595 2594

我不是专家，但看起来turbo不能正常工作？

我怎么能让它发挥作用？我在网上找到的所有东西都只是说使用涡轮增压器，但并没有真正帮助解决问题。

任何的想法？

我使用burnK7来生成cpu负载。请注意，在开始时Bzy_MHz列接近3Ghz，但然后稳定在1Ghz附近，这是正常的吗？

我的处理器：英特尔®酷睿™i7-3687U CPU @ 2.10GHz×4

Ubuntu： Ubuntu 16.04.1 LTS 64 bits

在重载i7z显示器下：

i7z

它说turbo模式已启用，但频率非常低，我确信完全相同的任务（这里编译Scala代码）计算机在升级Ubuntu之前对同一任务的噪声/速度非常快。为什么会这样？

我用sudo service thermald stop关掉了thermald

还从cpupower获得以下输出：

 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: 800 MHz - 3.30 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 1.98 GHz and 1.98 GHz. The governor "performance" may decide which speed to use within this range. current CPU frequency is 1.10 GHz. boost state support: Supported: yes Active: yes 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

我注意到frequency should be within 1.98 GHz and 1.98 GHz. 实际上是一个移动目标范围，并可能受到thermald启动/停止的影响。

我现在得到一个奇怪的结果：

  current policy: frequency should be within 3.30 GHz and 3.30 GHz. The governor "performance" may decide which speed to use within this range. current CPU frequency is 800 MHz.

请注意， /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq等文件中的值似乎在不断变化

一些额外的涡轮增压器输出。

第一个是在加载阶段的开始。开始时频率很高。

 $ sudo turbostat --debug sleep 10 turbostat version 4.8 26-Sep, 2015 - Len Brown  CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3a:9 (6:58:9) CPUID(6): APERF, DTS, PTM, EPB RAPL: 3855 sec. Joule Counter Range, at 17 Watts cpu2: MSR_PLATFORM_INFO: 0x80815f0011a00 8 * 100 = 800 MHz max efficiency frequency 26 * 100 = 2600 MHz base frequency cpu2: MSR_IA32_POWER_CTL: 0x0014005d (C1E auto-promotion: DISabled) cpu2: MSR_TURBO_RATIO_LIMIT: 0x1f1f1f21 31 * 100 = 3100 MHz max turbo 4 active cores 31 * 100 = 3100 MHz max turbo 3 active cores 31 * 100 = 3100 MHz max turbo 2 active cores 33 * 100 = 3300 MHz max turbo 1 active cores cpu2: MSR_CONFIG_TDP_NOMINAL: 0x00000015 (base_ratio=5) cpu2: MSR_CONFIG_TDP_LEVEL_1: 0x00080070 (PKG_MIN_PWR_LVL1=0 PKG_MAX_PWR_LVL1=0 LVL1_RATIO=8 PKG_TDP_LVL1=112) cpu2: MSR_CONFIG_TDP_LEVEL_2: 0x001a00c8 (PKG_MIN_PWR_LVL2=0 PKG_MAX_PWR_LVL2=0 LVL2_RATIO=10 PKG_TDP_LVL2=200) cpu2: MSR_CONFIG_TDP_CONTROL: 0x00000000 ( lock=0) cpu2: MSR_TURBO_ACTIVATION_RATIO: 0x00000014 (MAX_NON_TURBO_RATIO=20 lock=0) cpu2: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008405 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, locked: pkg-cstate-limit=5: pc7s) cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced) cpu0: MSR_RAPL_POWER_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.) cpu0: MSR_PKG_POWER_INFO: 0x00000088 (17 W TDP, RAPL 0 - 0 W, 0.000000 sec.) cpu0: MSR_PKG_POWER_LIMIT: 0x800080fa00dc80c8 (locked) cpu0: PKG Limit #1: ENabled (25.000000 Watts, 28.000000 sec, clamp DISabled) cpu0: PKG Limit #2: ENabled (31.250000 Watts, 0.000977* sec, clamp DISabled) cpu0: MSR_PP0_POLICY: 0 cpu0: MSR_PP0_POWER_LIMIT: 0x80000000 (locked) cpu0: Cores Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled) cpu0: MSR_PP1_POLICY: 0 cpu0: MSR_PP1_POWER_LIMIT: 0x80000000 (locked) cpu0: GFX Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled) cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00691200 (105 C) cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x880a0908 (95 C) cpu0: MSR_IA32_THERM_STATUS: 0x880c0008 (93 C +/- 1) cpu2: MSR_IA32_THERM_STATUS: 0x880a0008 (95 C +/- 1) Core CPU Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3 CPU%c6 CPU%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt - - 1900 79.17 2406 2594 0 15.12 0.11 0.00 5.60 93 93 0.00 0.00 0.00 0.00 10.51 6.86 0.37 0 0 1893 78.90 2405 2594 1 16.29 0.16 0.00 4.65 89 93 0.00 0.00 0.00 0.00 10.51 6.86 0.37 0 1 2016 84.01 2406 2594 1 11.18 1 2 1982 82.61 2405 2594 1 10.78 0.06 0.00 6.55 93 1 3 1710 71.16 2408 2594 1 22.23 10.001067 sec

第二个是负载一段时间后：频率降低：

 $ sudo turbostat --debug sleep 10 turbostat version 4.8 26-Sep, 2015 - Len Brown  CPUID(0): GenuineIntel 13 CPUID levels; family:model:stepping 0x6:3a:9 (6:58:9) CPUID(6): APERF, DTS, PTM, EPB RAPL: 3855 sec. Joule Counter Range, at 17 Watts cpu2: MSR_PLATFORM_INFO: 0x80815f0011a00 8 * 100 = 800 MHz max efficiency frequency 26 * 100 = 2600 MHz base frequency cpu2: MSR_IA32_POWER_CTL: 0x0014005d (C1E auto-promotion: DISabled) cpu2: MSR_TURBO_RATIO_LIMIT: 0x1f1f1f21 31 * 100 = 3100 MHz max turbo 4 active cores 31 * 100 = 3100 MHz max turbo 3 active cores 31 * 100 = 3100 MHz max turbo 2 active cores 33 * 100 = 3300 MHz max turbo 1 active cores cpu2: MSR_CONFIG_TDP_NOMINAL: 0x00000015 (base_ratio=5) cpu2: MSR_CONFIG_TDP_LEVEL_1: 0x00080070 (PKG_MIN_PWR_LVL1=0 PKG_MAX_PWR_LVL1=0 LVL1_RATIO=8 PKG_TDP_LVL1=112) cpu2: MSR_CONFIG_TDP_LEVEL_2: 0x001a00c8 (PKG_MIN_PWR_LVL2=0 PKG_MAX_PWR_LVL2=0 LVL2_RATIO=10 PKG_TDP_LVL2=200) cpu2: MSR_CONFIG_TDP_CONTROL: 0x00000000 ( lock=0) cpu2: MSR_TURBO_ACTIVATION_RATIO: 0x00000014 (MAX_NON_TURBO_RATIO=20 lock=0) cpu2: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008405 (UNdemote-C3, UNdemote-C1, demote-C3, demote-C1, locked: pkg-cstate-limit=5: pc7s) cpu0: MSR_IA32_ENERGY_PERF_BIAS: 0x00000006 (balanced) cpu0: MSR_RAPL_POWER_UNIT: 0x000a1003 (0.125000 Watts, 0.000015 Joules, 0.000977 sec.) cpu0: MSR_PKG_POWER_INFO: 0x00000088 (17 W TDP, RAPL 0 - 0 W, 0.000000 sec.) cpu0: MSR_PKG_POWER_LIMIT: 0x800080fa00dc80c8 (locked) cpu0: PKG Limit #1: ENabled (25.000000 Watts, 28.000000 sec, clamp DISabled) cpu0: PKG Limit #2: ENabled (31.250000 Watts, 0.000977* sec, clamp DISabled) cpu0: MSR_PP0_POLICY: 0 cpu0: MSR_PP0_POWER_LIMIT: 0x80000000 (locked) cpu0: Cores Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled) cpu0: MSR_PP1_POLICY: 0 cpu0: MSR_PP1_POWER_LIMIT: 0x80000000 (locked) cpu0: GFX Limit: DISabled (0.000000 Watts, 0.000977 sec, clamp DISabled) cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00691200 (105 C) cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x881b0908 (78 C) cpu0: MSR_IA32_THERM_STATUS: 0x881e0008 (75 C +/- 1) cpu2: MSR_IA32_THERM_STATUS: 0x881b0008 (78 C +/- 1) Core CPU Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3 CPU%c6 CPU%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt - - 30 2.79 1091 2594 0 6.92 0.30 0.00 89.99 70 71 1.60 0.03 1.48 47.85 3.65 0.71 0.29 0 0 22 1.97 1133 2594 0 6.34 0.12 0.00 91.58 70 71 1.60 0.03 1.48 47.85 3.65 0.71 0.29 0 1 38 3.09 1224 2594 0 5.22 1 2 25 2.45 1016 2594 0 8.67 0.47 0.00 88.40 70 1 3 37 3.67 1006 2594 0 7.45 10.001501 sec

在负载阶段开始时，似乎我的CPU可能变得非常热，接近105°，这是CPU的结温，然后系统阻止它们自己做饭并将频率显着降低到最小。

我希望在负载很重的情况下处理器不那么热，而且当它变热时，处理器的降低程度会降低。那可能吗？

我打开以解决我的问题的相关问题（可能包含此处未提及的可能有用的其他信息）

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我想知道CPU是否受到powerclamp的限制。如果你运行top，你可能会看到kidle_inject线程正在运行，如果是这样，CPU被强制钳位作为热约束，因此你会看到明显的100％利用率和低CPU频率。

我的i5遇到了同样的问题。检查你的驱动实用程序。 16.04需要英特尔处理器的额外驱动程序。我认为安装intel-microcode会很好地解决这个问题（在重新启动之后）。让我知道结果如何。

如何启用Turbo-boost

Turbo Boost工作吗？