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设备使用率达到 100% - 我该如何解决这个问题？

tag-icon • tag-icon 12.04 hardware power-management
设备使用率达到 100% - 我该如何解决这个问题？

我有一台联想 ThinkPad E530 笔记本电脑。其中某些设备的使用率达到 100%。powertop 的结果如下：

Usage     Device name
         10.8%        CPU use
        **100.0%        Audio codec hwC0D0: Conexant
        100.0%        Audio codec hwC0D3: Intel**
         40.0%        Display backlight
         11.0%        Display backlight
        206.2 pkts/s  Network interface: eth0 (r8169)
        162.6 pkts/s  nic:ppp0
        **100.0%        PCI Device: Intel Corporation Ivy Bridge DRAM Controller
        100.0%        PCI Device: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller
        100.0%        PCI Device: Intel Corporation Panther Point High Definition Audio Controller
        100.0%        PCI Device: Intel Corporation Panther Point PCI Express Root Port 1
        100.0%        PCI Device: Intel Corporation Panther Point MEI Controller #1
        100.0%        PCI Device: Intel Corporation Ivy Bridge Graphics Controller
        100.0%        USB device: EHCI Host Controller
        100.0%        USB Device: usb-device-8087-0024
        100.0%        PCI Device: Intel Corporation Panther Point PCI Express Root Port 2
        100.0%        PCI Device: Intel Corporation Panther Point USB Enhanced Host Controller #2
        100.0%        PCI Device: Intel Corporation Panther Point PCI Express Root Port 4
        100.0%        PCI Device: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller
        100.0%        PCI Device: Intel Corporation Ivy Bridge PCI Express Root Port
        100.0%        PCI Device: Intel Corporation Panther Point PCI Express Root Port 3
        100.0%        PCI Device: Intel Corporation Panther Point USB xHCI Host Controller
        100.0%        PCI Device: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode]
        100.0%        USB device: TouchStrip Fingerprint Sensor       (UPEK)
        100.0%        PCI Device: Intel Corporation Panther Point USB Enhanced Host Controller #1
        100.0%        USB device: USB Optical Mouse**
          0.0 pkts/s  Network interface: wlan0 (brcmsmac)
          0.0 rpm     Laptop fan
          0.0%        Radio device: thinkpad_acpi
          0.0%        Radio device: brcmsmac
          0.0%        USB device: Integrated Camera (C6JC9FCAV)
          0.0%        USB Device: usb-device-8087-0024
          0.0%        USB device: xHCI Host Controller
          0.0%        USB device: xHCI Host Controller
          0.0%        USB device: EHCI Host Controller

我怎么解决这个问题？

答案1

这只是意味着你已启用所有这些设备。因此，它表示积极的100％ 的时间这不是问题（相反，这是一件好事）。

事实上你应该看看man powertop这个命令到底有什么用处。看看如何调整 Powertop 来降低功耗？在这个意义上。

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