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  • Android 性能分析工具dumpsys的使用(自己增加一部分在后面)

    Android提供的dumpsys工具可以用于查看感兴趣的系统服务信息与状态，手机连接电脑后可以直接命令行执行adb shell dumpsys 查看所有支持的Service但是这样输出的太多，可以通过dumpsys | grep "DUMP OF SERVICE" 仅显示主要的Service的信息

    一、列出dumpsys所有支持命令

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    > adb shell 
    $ dumpsys | grep "DUMP OF SERVICE"

    以下是在三星S3手机上的输出信息

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    C:WindowsSystem32>adb shell 
    shell@m:/ $ dumpsys | grep "DUMP OF SERVICE" 
    dumpsys | grep "DUMP OF SERVICE" 
    DUMP OF SERVICE AtCmdFwd: 
    DUMP OF SERVICE CustomFrequencyManagerService: 
    DUMP OF SERVICE DirEncryptService: 
    DUMP OF SERVICE Exynos.HWCService: 
    DUMP OF SERVICE Exynos.IPService: 
    DUMP OF SERVICE FMPlayer: 
    DUMP OF SERVICE LEDService: 
    DUMP OF SERVICE SecTVOutService: 
    DUMP OF SERVICE SurfaceFlinger: 
    DUMP OF SERVICE TvoutService_C: 
    DUMP OF SERVICE accessibility: 
    DUMP OF SERVICE account: 
    DUMP OF SERVICE activity: 
    DUMP OF SERVICE alarm: 
    DUMP OF SERVICE android.security.keystore: 
    DUMP OF SERVICE application_policy: 
    DUMP OF SERVICE appops: 
    DUMP OF SERVICE appwidget: 
    DUMP OF SERVICE audio: 
    DUMP OF SERVICE backup: 
    DUMP OF SERVICE battery: 
    DUMP OF SERVICE batteryinfo: 
    DUMP OF SERVICE bluetooth_manager: 
    DUMP OF SERVICE bluetooth_secure_mode_manager: 
    DUMP OF SERVICE clipboard: 
    DUMP OF SERVICE clipboardEx: 
    DUMP OF SERVICE commontime_management: 
    DUMP OF SERVICE connectivity: 
    DUMP OF SERVICE container_service: 
    DUMP OF SERVICE content: 
    DUMP OF SERVICE country_detector: 
    DUMP OF SERVICE cpuinfo: 
    DUMP OF SERVICE dbinfo: 
    DUMP OF SERVICE device_policy: 
    DUMP OF SERVICE devicestoragemonitor: 
    DUMP OF SERVICE diskstats: 
    DUMP OF SERVICE display: 
    DUMP OF SERVICE dreams: 
    DUMP OF SERVICE drm.drmManager: 
    DUMP OF SERVICE dropbox: 
    DUMP OF SERVICE edmnativehelper: 
    DUMP OF SERVICE enterprise_license_policy: 
    DUMP OF SERVICE enterprise_policy: 
    DUMP OF SERVICE entropy: 
    DUMP OF SERVICE gfxinfo: 
    DUMP OF SERVICE hardware: 
    DUMP OF SERVICE harmony_eas_service: 
    DUMP OF SERVICE input: 
    DUMP OF SERVICE input_method: 
    DUMP OF SERVICE iphonesubinfo: 
    DUMP OF SERVICE isms: 
    DUMP OF SERVICE license_log_service: 
    DUMP OF SERVICE location: 
    DUMP OF SERVICE lock_settings: 
    DUMP OF SERVICE log_manager_service: 
    DUMP OF SERVICE mdm.remotedesktop: 
    DUMP OF SERVICE media.audio_flinger: 
    DUMP OF SERVICE media.audio_policy: 
    DUMP OF SERVICE media.camera: 
    DUMP OF SERVICE media.player: 
    DUMP OF SERVICE meminfo: 
    DUMP OF SERVICE motion_recognition: 
    DUMP OF SERVICE mount: 
    DUMP OF SERVICE multiwindow: 
    DUMP OF SERVICE netpolicy: 
    DUMP OF SERVICE netstats: 
    DUMP OF SERVICE network_management: 
    DUMP OF SERVICE nfc: 
    DUMP OF SERVICE nfccontroller: 
    DUMP OF SERVICE notification: 
    DUMP OF SERVICE package: 
    DUMP OF SERVICE permission: 
    DUMP OF SERVICE phone: 
    DUMP OF SERVICE phone_restriction_policy: 
    DUMP OF SERVICE phoneext: 
    DUMP OF SERVICE power: 
    DUMP OF SERVICE remoteinjection: 
    DUMP OF SERVICE samplingprofiler: 
    DUMP OF SERVICE samsung.smartfaceservice: 
    DUMP OF SERVICE scheduling_policy: 
    DUMP OF SERVICE search: 
    DUMP OF SERVICE sec_analytics: 
    DUMP OF SERVICE secontroller: 
    DUMP OF SERVICE sensorservice: 
    DUMP OF SERVICE serial: 
    DUMP OF SERVICE servicediscovery: 
    DUMP OF SERVICE simphonebook: 
    DUMP OF SERVICE sip: 
    DUMP OF SERVICE statusbar: 
    DUMP OF SERVICE telephony.registry: 
    DUMP OF SERVICE textservices: 
    DUMP OF SERVICE tvoutservice: 
    DUMP OF SERVICE uimode: 
    DUMP OF SERVICE updatelock: 
    DUMP OF SERVICE usagestats: 
    DUMP OF SERVICE usb: 
    DUMP OF SERVICE user: 
    DUMP OF SERVICE vibrator: 
    DUMP OF SERVICE voip: 
    DUMP OF SERVICE wallpaper: 
    DUMP OF SERVICE wfd: 
    DUMP OF SERVICE wifi: 
    DUMP OF SERVICE wifi_policy: 
    DUMP OF SERVICE wifip2p: 
    DUMP OF SERVICE window:

    二、具体命令如何查看帮助

    从上面可以看出Service非常多，“DUMP OF SERVICE”关键字后面的单词都可以直接通过 dumpsys + 单词 查看相关信息，具体每一个如何使用有一种通用的查看帮助的办法。

    查看每一个命令的使用帮助，以下以meminfo 为例演示：
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    shell@m:/ $ dumpsys meminfo -h 
    dumpsys meminfo -h 
    meminfo dump options: [-a] [--oom] [process] 
      -a: include all available information for each process. 
      --oom: only show processes organized by oom adj. 
    If [process] is specified it can be the name or 
    pid of a specific process to dump.

    三、一些关键命令解释


    名字功能
    account 显示accounts信息
    activity 显示所有的activities的信息
    cpuinfo显示CPU信息
    window显示键盘，窗口和它们的关系
    wifi 显示wifi信息
    batteryinfo $package_name电量信息及CPU 使用时长
    package packagename获取安装包信息
    usagestats每个界面启动的时间
    statusbar显示状态栏相关的信息
    meminfo
    内存信息（meminfo $package_name or $pid 
    使用程序的包名或者进程id显示内存信息）
    diskstats 磁盘相关信息
    battery 电池信息
    alarm显示Alarm信息
      

        dumpsys statusbar | grep notification=Notification 


    也可以单独列出某个系统服务的，比如battery，命令：dumpsys battery，如果想知道具体可以做哪些操作可：dumpsys battery -h来查看，比如我们想设置电量百分比，可以

    dumpsys battery set level 5。
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  • 原文地址：https://www.cnblogs.com/LoongEmbedded/p/5298181.html
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