Android ADB 셸 "dumpsys"도구 란 무엇이고 그 이점은 무엇입니까?
dumpsys모든 명령에 대한 자세한 설명과 함께 ADB 셸 명령 의 전체 목록을 찾고 있습니다.
이 정보는 어디서 찾을 수 있습니까?
Dumpsys 란 무엇이며 그 장점은 무엇입니까
dumpsys 는 장치에서 실행되며 시스템 서비스 상태에 대한 흥미로운 정보를 덤프하는 Android 도구입니다.
명백한 이점 :
- 간단한 문자열 표현으로 시스템 정보를 쉽게 얻을 수 있습니다.
- 덤프 된 CPU, RAM, 배터리, 스토리지 통계를 예쁜 차트로 사용할 수 있으므로 애플리케이션이 전체 장치에 어떤 영향을 미치는지 확인할 수 있습니다!
dumpsys shell 명령에서 검색 할 수있는 정보 및 사용 방법
dumpsys를 실행하면 많은 시스템 정보가 표시됩니다. 그러나이 큰 덤프의 개별 부분 만 사용할 수 있습니다.
dumpsys의 "하위 명령"을 모두 보려면 :
dumpsys | grep "DUMP OF SERVICE"
산출:
DUMP OF SERVICE SurfaceFlinger:
DUMP OF SERVICE accessibility:
DUMP OF SERVICE account:
DUMP OF SERVICE activity:
DUMP OF SERVICE alarm:
DUMP OF SERVICE appwidget:
DUMP OF SERVICE audio:
DUMP OF SERVICE backup:
DUMP OF SERVICE battery:
DUMP OF SERVICE batteryinfo:
DUMP OF SERVICE clipboard:
DUMP OF SERVICE connectivity:
DUMP OF SERVICE content:
DUMP OF SERVICE cpuinfo:
DUMP OF SERVICE device_policy:
DUMP OF SERVICE devicestoragemonitor:
DUMP OF SERVICE diskstats:
DUMP OF SERVICE dropbox:
DUMP OF SERVICE entropy:
DUMP OF SERVICE hardware:
DUMP OF SERVICE input_method:
DUMP OF SERVICE iphonesubinfo:
DUMP OF SERVICE isms:
DUMP OF SERVICE location:
DUMP OF SERVICE media.audio_flinger:
DUMP OF SERVICE media.audio_policy:
DUMP OF SERVICE media.player:
DUMP OF SERVICE meminfo:
DUMP OF SERVICE mount:
DUMP OF SERVICE netstat:
DUMP OF SERVICE network_management:
DUMP OF SERVICE notification:
DUMP OF SERVICE package:
DUMP OF SERVICE permission:
DUMP OF SERVICE phone:
DUMP OF SERVICE power:
DUMP OF SERVICE reboot:
DUMP OF SERVICE screenshot:
DUMP OF SERVICE search:
DUMP OF SERVICE sensor:
DUMP OF SERVICE simphonebook:
DUMP OF SERVICE statusbar:
DUMP OF SERVICE telephony.registry:
DUMP OF SERVICE throttle:
DUMP OF SERVICE usagestats:
DUMP OF SERVICE vibrator:
DUMP OF SERVICE wallpaper:
DUMP OF SERVICE wifi:
DUMP OF SERVICE window:
일부 덤핑 예제 및 출력
1) 가능한 모든 배터리 통계 얻기 :
$~ adb shell dumpsys battery
당신은 출력을 얻을 것이다 :
Current Battery Service state:
AC powered: false
AC capacity: 500000
USB powered: true
status: 5
health: 2
present: true
level: 100
scale: 100
voltage:4201
temperature: 271 <---------- Battery temperature! %)
technology: Li-poly <---------- Battery technology! %)
2) WiFi 정보 얻기
~$ adb shell dumpsys wifi
산출:
Wi-Fi is enabled
Stay-awake conditions: 3
Internal state:
interface tiwlan0 runState=Running
SSID: XXXXXXX BSSID: xx:xx:xx:xx:xx:xx, MAC: xx:xx:xx:xx:xx:xx, Supplicant state: COMPLETED, RSSI: -60, Link speed: 54, Net ID: 2, security: 0, idStr: null
ipaddr 192.168.1.xxx gateway 192.168.x.x netmask 255.255.255.0 dns1 192.168.x.x dns2 8.8.8.8 DHCP server 192.168.x.x lease 604800 seconds
haveIpAddress=true, obtainingIpAddress=false, scanModeActive=false
lastSignalLevel=2, explicitlyDisabled=false
Latest scan results:
Locks acquired: 28 full, 0 scan
Locks released: 28 full, 0 scan
Locks held:
3) CPU 정보 얻기
~$ adb shell dumpsys cpuinfo
산출:
Load: 0.08 / 0.4 / 0.64
CPU usage from 42816ms to 34683ms ago:
system_server: 1% = 1% user + 0% kernel / faults: 16 minor
kdebuglog.sh: 0% = 0% user + 0% kernel / faults: 160 minor
tiwlan_wq: 0% = 0% user + 0% kernel
usb_mass_storag: 0% = 0% user + 0% kernel
pvr_workqueue: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
+sleep: 0% = 0% user + 0% kernel
TOTAL: 6% = 1% user + 3% kernel + 0% irq
4) 메모리 사용량 정보 얻기
~$ adb shell dumpsys meminfo 'your apps package name'
산출:
** MEMINFO in pid 5527 [com.sec.android.widgetapp.weatherclock] **
native dalvik other total
size: 2868 5767 N/A 8635
allocated: 2861 2891 N/A 5752
free: 6 2876 N/A 2882
(Pss): 532 80 2479 3091
(shared dirty): 932 2004 6060 8996
(priv dirty): 512 36 1872 2420
Objects
Views: 0 ViewRoots: 0
AppContexts: 0 Activities: 0
Assets: 3 AssetManagers: 3
Local Binders: 2 Proxy Binders: 8
Death Recipients: 0
OpenSSL Sockets: 0
SQL
heap: 0 MEMORY_USED: 0
PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 0
모든 프로세스에 대한 정보를 보려면 ~$ adb shell dumpsys meminfo
dumpsys 는 궁극적으로 유연하고 유용한 도구입니다!
이 도구를 사용하려면 Android 매니페스트에 자동으로 권한을 추가하는 것을 잊지 마십시오 android.permission.DUMP
dumpsys에 대해 자세히 알아 보려면 모든 명령을 테스트하십시오. 행복한 덤핑!
dumpsys 및 service 의 소스 코드를 보면 다음을 실행하여 사용 가능한 서비스 목록을 얻을 수 있습니다.
adb shell service list
You can then supply the service name you are interested in to dumpsys to get the specific information. For example (note that not all services provide dump info):
adb shell dumpsys activity
adb shell dumpsys cpuinfo
adb shell dumpsys battery
As you can see in the code (and in K_Anas's answer), if you call dumpsys without any service name, it will dump the info on all services in one big dump:
adb shell dumpsys
Some services can receive additional arguments on what to show which normally is explained if you supplied a -h argument, for example:
adb shell dumpsys activity -h
adb shell dumpsys window -h
adb shell dumpsys meminfo -h
adb shell dumpsys package -h
adb shell dumpsys batteryinfo -h
According to official Android information about dumpsys:
The dumpsys tool runs on the device and provides information about the status of system services.
To get a list of available services use
adb shell dumpsys -l
i use dumpsys to catch if app is crashed and process is still active. situation i used it is to find about remote machine app is crashed or not.
dumpsys | grep myapp | grep "Application Error"
or
adb shell dumpsys | grep myapp | grep Error
or anything that helps...etc
if app is not running you will get nothing as result. When app is stoped messsage is shown on screen by android, process is still active and if you check via "ps" command or anything else, you will see process state is not showing any error or crash meaning. But when you click button to close message, app process will cleaned from process list. so catching crash state without any code in application is hard to find. but dumpsys helps you.
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