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    copied!<p><strong>What's dumpsys and what are its benefit</strong></p> <p><em>dumpsys</em> is an android tool that runs on the device and dumps interesting information about the status of system services.</p> <p>Obvious benefits:</p> <ol> <li>Possibility to easily get system information in a simple string representation.</li> <li>Possibility to use dumped CPU, RAM, Battery, storage stats for a pretty charts, which will allow you to check how your application affects the overall device!</li> </ol> <p><strong>What information can we retrieve from dumpsys shell command and how we can use it</strong></p> <p>If you run dumpsys you would see a ton of system information. But you can use only separate parts of this big dump.</p> <p>to see all of the "subcommands" of dumpsys do:</p> <p><code>dumpsys | grep "DUMP OF SERVICE"</code></p> <p><em>Output:</em></p> <pre><code>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: </code></pre> <p><strong>Some Dumping examples and output</strong></p> <p>1) Getting all possible battery statistic:</p> <pre><code>$~ adb shell dumpsys battery </code></pre> <p>You will get output:</p> <pre><code>Current Battery Service state: AC powered: false AC capacity: 500000 USB powered: true status: 5 health: 2 present: true level: 100 scale: 100 voltage:4201 temperature: 271 &lt;---------- Battery temperature! %) technology: Li-poly &lt;---------- Battery technology! %) </code></pre> <p>2)Getting wifi informations</p> <pre><code>~$ adb shell dumpsys wifi </code></pre> <p>Output:</p> <pre><code>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: </code></pre> <p>3) Getting CPU info</p> <pre><code>~$ adb shell dumpsys cpuinfo </code></pre> <p>Output:</p> <pre><code>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 </code></pre> <p>4)Getting memory usage informations</p> <pre><code>~$ adb shell dumpsys meminfo 'your apps package name' </code></pre> <p>Output:</p> <pre><code>** 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 </code></pre> <p>If you want see the info for all processes, use <code>~$ adb shell dumpsys meminfo</code></p> <p><img src="https://i.stack.imgur.com/kmNFS.jpg" alt="enter image description here"></p> <p><strong>dumpsys</strong> is ultimately flexible and useful tool!</p> <p>If you want to use this tool do not forget to add permission into your android manifest automatically <code>android.permission.DUMP</code></p> <p>Try to test all commands to learn more about dumpsys. Happy dumping!</p>
 

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