android调试——教你用dumpsys命令调试

Posted 2022-12-09 一代小强

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“这一篇就聊聊dumpsys 比较常用的命令“

dumpsys 服务

基本用法

adb shell dumpsys [-t timeout] [--help | -l | --skip services | service [arguments] | -c | -h]

查看可与 dumpsys 配合使用的系统服务的完整列表，请使用以下命令：

adb shell dumpsys -l

某些服务可能允许您传递可选参数。您可以通过将 -h 选项与服务名称一起传递来了解这些可选参数，如下所示：

adb shell dumpsys procstats -h

// 查看 com.demo.package 应用的 servicecs 启动记录
adb shell dumpsys activity services -p com.demo.package

// 查看activity启动记录 
adb shell dumpsys activity

官网有一些用法的说明可见 dumpsys命令

其实官网上的介绍也是比较简单，并且没有什么实际用途

所以，这里列举了大部分开发中会用到的服务

1、dumpsys SurfaceFlinger

查看屏幕静态帧信息

Static screen stats:
  < 1 frames: 0.335 s (1.5%) // 每帧的耗时情况
  < 2 frames: 2.049 s (9.1%)
	。。。。
  7+ frames: 19.625 s (87.1%)

查看BufferLayer（缓冲区）情况

+ BufferLayer (WindowToken3c467fd android.os.BinderProxy@3eec54#0)
  Region TransparentRegion (this=a2fed158 count=1)
    [  0,   0,   0,   0]
  Region VisibleRegion (this=a2fed008 count=1)
    [  0,   0,   0,   0]
  Region SurfaceDamageRegion (this=a2fed044 count=1)
    [  0,   0,   0,   0]
      layerStack=   0, z=        0, pos=(0,0), size=(2560,2560), crop=[  0,   0,  -1,  -1], finalCrop=[  0,   0,  -1,  -1], isOpaque=0, invalidate=1, dataspace=Default, defaultPixelFormat=RGBx_8888, color=(0.000,0.000,0.000,1.000), flags=0x00000000, tr=[1.00, 0.00][0.00, 1.00]
      parent=mAboveAppWindowsContainers#0  // 所属父类
      zOrderRelativeOf=none
      activeBuffer=[   0x   0:   0,Unknown/None], queued-frames=0, mRefreshPending=0, windowType=-1, appId=-1

Displays信息（比如屏幕分辨率）

+ DisplayDevice: Built-in Screen
   type=0, hwcId=0, layerStack=0, (1280x 720), ANativeWindow=0xa52e7808 (8:8:8:8), orient= 0 (type=00000000), flips=280, isSecure=1, powerMode=2, activeConfig=0, numLayers=2
   v:[0,0,1280,720], f:[0,0,1280,720], s:[0,0,1280,720],transform:[[1.000,0.000,-0.000][0.000,1.000,-0.000][0.000,0.000,1.000]]
   wideColorGamut=0, hdr10=0, colorMode=ColorMode::NATIVE, dataspace: Default (0)
  FramebufferSurface: dataspace: Default(0)
   
default-size=[1280x720] default-format=1 transform-hint=00 frame-counter=280 // 屏幕分辨率信息

其他信息

EGL implementation : 1.4 Linux-r8p0-01rel0 // EGL 版本
GLES: ARM, Mali-450 MP, OpenGL ES 2.0 3d6a80e // OpenGL 架构信息
refresh-rate              : 60.000002 fps // 刷新率
x-dpi                     : 160.156998 // x dpi
y-dpi                     : 160.421005 // y dpi
VSYNC state: disabled // 垂直同步状态
soft-vsync: disabled // 当屏幕亮着的，就是disabled，如果关闭屏幕，这里为enabled

2、dumpsys activity

dumpsys activity o

获取OOM等级信息，home进程、上一次的进程内容

generic_x86:/ $ dumpsys activity o
  OOM levels:
    -900: SYSTEM_ADJ (   32,768K) 。。。
      
  mHomeProcess: ProcessRecorda3cea50 18515:com.android.launcher3/u0a19
  mPreviousProcess: ProcessRecord3758933 23311:com.android.settings/1000

dumpsys activity a

从顶部到底部打印 TaskRecord（activity）信息，包含如下内容

* TaskRecord9e6567 #150 A=com.android.settings U=0 StackId=1 sz=2
  * Hist #1: ActivityRecorde5fb34f u0 com.android.settings/.Settings$MemorySettingsActivity t150
          packageName=com.android.settings processName=com.android.settings
          launchedFromUid=1000 launchedFromPackage=com.android.settings userId=0
          app=ProcessRecord3758933 23311:com.android.settings/1000
          Intent  flg=0x8000 cmp=com.android.settings/.Settings$MemorySettingsActivity (has extras) 
          frontOfTask=false task=TaskRecord9e6567 #150 A=com.android.settings U=0 StackId=1 sz=2
          taskAffinity=null
          realActivity=com.android.settings/.Settings$MemorySettingsActivity
          baseDir=/system/priv-app/Settings/Settings.apk
          dataDir=/data/user_de/0/com.android.settings
          state=RESUMED stopped=false delayedResume=false finishing=false

dumpsys activity r

打印最近的TaskRecord信息，信息内容与a参数的类似

dumpsys activity b [PACKAGE_NAME]

打印指定包创建的进程信息，包含已经注册的广播接收器action信息，创建的handler

generic_x86:/ $ dumpsys activity b com.google.android.ext.services
ACTIVITY MANAGER BROADCAST STATE (dumpsys activity broadcasts)

  mBroadcastsScheduled [foreground]=false
  mBroadcastsScheduled [background]=false
  mHandler:
    Handler (com.android.server.am.ActivityManagerService$MainHandler) 32cc7bf @ 26049725
      Looper (ActivityManager, tid 16) ba76e8c
        Message 0:  when=+8m0s963ms what=27 target=com.android.server.am.ActivityManagerService$MainHandler 
        Message 1:  when=+10m14s258ms callback=com.android.server.am.ActiveServices$1 target=com.android.server.am.ActivityManagerService$MainHandler 
        Message 2:  when=+23m38s921ms callback=com.android.server.AppOpsService$1 target=com.android.server.am.ActivityManagerService$MainHandler 
        (Total messages: 3, polling=true, quitting=false)

dumpsys activity p [PACKAGE_NAME]

打印指定包创建的进程信息，包含：

requiredAbi：要求的架构
lastSwapPss：内存使用情况
lastRequestedGc：上次GC请求

generic_x86:/ $ dumpsys activity p com.google.android.ext.services
ACTIVITY MANAGER RUNNING PROCESSES (dumpsys activity processes)
  requiredAbi=x86 instructionSet=null
  adjSeq=18970 lruSeq=0 lastPss=4.1MB lastSwapPss=0.00 lastCachedPss=0.00 lastCachedSwapPss=0.00
  lastRequestedGc=-4h9m54s33ms lastLowMemory=-4h9m54s33ms reportLowMemory=false .....

dumpsys activity s

打印ServiceRecord信息，包含
intent：intent信息
packageName：包名
IntentBindRecord：已绑定该服务的信息

ServiceRecorda4d66c6 u0 com.android.chrome/org.chromium.chrome.browser.omaha.OmahaClient
    intent=act=org.chromium.chrome.browser.omaha.ACTION_REGISTER_REQUEST cmp=com.android.chrome/org.chromium.chrome.browser.omaha.OmahaClient
    packageName=com.android.chrome ....

dumpsys activity settings

打印ServiceRecord信息，包含
intent：intent信息
packageName：包名
IntentBindRecord：已绑定该服务的信息

generic_x86:/ $ dumpsys activity settings
TASK com.android.settings id=150
  ACTIVITY com.android.settings/.Settings$MemorySettingsActivity e5fb34f pid=23311
    Local Activity ebdaec State:
      mResumed=true mStopped=false mFinished=false .....

dumpsys activity all

打印全部的activity，包含
生命周期状态
View Hierarchy: view的层次结构

generic_x86:/ $ dumpsys activity all
TASK com.example.flutter_web id=149  ...
  
    View Hierarchy:
      DecorView@6f37f9c[MainActivity]
        android.widget.LinearLayout5370da5 V.E...... .......D 0,0-1080,1794
          android.view.ViewStub137457a G.E...... ......I. 0,0-0,0 #10203e8 android:id/action_mode_bar_stub
          android.widget.FrameLayout20ff12b V.E...... .......D 0,0-1080,1794 #1020002 android:id/content ....

dumpsys activity top

与all参数类似，但是只打印顶层activity的信息
dumpsys activity starter

打印对应的启动者
dumpsys activity lastanr

打印 ANR list信息

3、 dumpsys cpuinfo

查看CPU使用情况

CPU usage from 1251999ms to 351197ms ago (2020-02-23 17:21:02.541 to 2020-02-23 17:36:03.343):
  4.2% 20215/com.android.chrome:sandboxed_process0: 1.1% user + 3% kernel / faults: 396490 minor 1 major
   .....
6.6% TOTAL: 1.2% user + 4.9% kernel + 0% iowait + 0% irq + 0.3% softirq

4、dumpsys diskstats

查看磁盘使用情况

Latency: 1ms [512B Data Write]
Data-Free: 1195820K / 2031440K total = 58% free
Cache-Free: 61000K / 62416K total = 97% free
System-Free: 250356K / 2031440K total = 12% free

5、dumpsys display

屏幕物理信息

mDefaultViewport=DisplayViewportvalid=true, displayId=0, orientation=0, logicalFrame=Rect(0, 0 - 1080, 1920), physicalFrame=Rect(0, 0 - 1080, 1920), deviceWidth=1080, deviceHeight=1920
  mExternalTouchViewport=DisplayViewportvalid=false, displayId=0, orientation=0, logicalFrame=Rect(0, 0 - 0, 0), physicalFrame=Rect(0, 0 - 0, 0), deviceWidth=0, deviceHeight=0


mDisplayInfos=
   PhysicalDisplayInfo1920 x 1080, 60.000004 fps, density 1.5, 159.895 x 160.421 dpi, secure true, appVsyncOffset 1000000, bufferDeadline 16666666

6、dumpsys ethernet

查看IP，网关（ifconfig也能查看)

onNewDhcpResults(IP address 172.19.110.23/24 Gateway 172.19.110.1  DNS servers: [ 10.254.254.254 ] Domains gz.cvte.cn DHCP server /10.22.4.10 Vendor info null lease 7200 seconds)

7、dumpsys meminfo

查看系统各个应用内存使用情况

Total PSS by process:
     36,511K: system (pid 1929)
     3,903K: android.ext.services (pid 2881)
     .....
Total PSS by OOM adjustment:
     76,848K: Native
          4,411K: zygote (pid 1676)
          .....
Total PSS by category:
     78,104K: Native
     22,149K: Dalvik
    	......

Total RAM:   991,316K (status critical)
 Free RAM:   412,181K (   10,761K cached pss +   144,448K cached kernel +   256,972K free)
 Used RAM:   433,189K (  326,881K used pss +   106,308K kernel)
 Lost RAM:   193,772K
     ZRAM:    16,628K physical used for    74,012K in swap (  317,216K total swap)
   Tuning: 128 (large 256), oom   184,320K, restore limit    61,440K (low-ram)

8、dumpsys overlay

查看overlay的包状态

com.android.systemui.theme.dark:0 
    mPackageName.......: com.android.systemui.theme.dark  //overlay 的apk 包名
    mUserId............: 0
    mTargetPackageName.: com.android.systemui // 目标包名
    mBaseCodePath......: /vendor/overlay/SysuiDarkTheme/SysuiDarkThemeOverlay.apk // overlay的apk路径
    mState.............: STATE_DISABLED
    mIsEnabled.........: false 
    mIsStatic..........: false 
    mPriority..........: 1
    mCategory..........: null

9、dumpsys package

dumpsys package l

列举已知的lib库

Libraries:
  android.test.base ->  (jar) /system/framework/android.test.base.jar ....

dumpsys package f

列举设备支持的功能

Features:
  android.software.leanback_only ......

dumpsys package r

列举所有的 [activity|service|receiver|content ] intent 解析器，其中包含各个应用的入口，action对应的组件

Activity Resolver Table: // activity 入口
  Non-Data Actions: 
       android.settings.HOME_SETTINGS:  // action 
          c25027 com.android.tv.settings/.EmptyStubActivity  // 响应该action的组件
     ....
MIME Typed Actions:
      android.intent.action.INSTALL_PACKAGE:
        7215b10 com.android.packageinstaller/.InstallStart
       .....
Receiver Resolver Table:  // 广播接收器
Non-Data Actions:
      android.intent.action.LOCALE_CHANGED:
			        1a15a84 com.android.providers.media/.MediaScannerReceiver

dumpsys package permission [permissionName …]

列举所有申明该权限的应用信息，其中可以查看应用的版本信息，标签，使用的lib库和jar路径，首次安装时间，更新时间，签名信息，已经获取的权限，安装需要的权限以及overlay文件的路径

xxxx:/ $ dumpsys package permission android.permission.VIBRATE
Packages:
  pkg=Packagea077660 com.ecloud.eshare.server
  codePath=/system/priv-app/eshare-service
  versionCode=20190820 minSdk=8 targetSdk=8
  versionName=v5Android调试常用命令
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