dumpsys命令的用法
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- dumpsys命令是android手机自带的调试工具,下面详解讲解dumpsys用法
一. 初识dumpsys
adb shell //进入手机shelldumpsys | grep "DUMP OF SERVICE" //列举当前手机所有支持的dumpsys命令
运行上面指令,结果(不同手机结果会有所差异)
DUMP OF SERVICE AppIconThemeServices:DUMP OF SERVICE AtCmdFwd:DUMP OF SERVICE DockObserver:DUMP OF SERVICE SurfaceFlinger: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 appops:DUMP OF SERVICE appwidget:DUMP OF SERVICE assetatlas:DUMP OF SERVICE audio:DUMP OF SERVICE backup:DUMP OF SERVICE battery:DUMP OF SERVICE batteryproperties:DUMP OF SERVICE batterystats:DUMP OF SERVICE bluetooth_manager:DUMP OF SERVICE clipboard:DUMP OF SERVICE com.broadcom.nfc.Factory:DUMP OF SERVICE com.qualcomm.qti.auth.fidocryptodaemon:DUMP OF SERVICE commontime_management:DUMP OF SERVICE connectivity:DUMP OF SERVICE consumer_ir: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 display.qservice:DUMP OF SERVICE dreams:DUMP OF SERVICE drm.drmManager:DUMP OF SERVICE dropbox:DUMP OF SERVICE entropy:DUMP OF SERVICE fingerprint:DUMP OF SERVICE fm_fingerprint_service:DUMP OF SERVICE gfxinfo:DUMP OF SERVICE hardware:DUMP OF SERVICE imms:DUMP OF SERVICE ims:DUMP OF SERVICE input:DUMP OF SERVICE input_method:DUMP OF SERVICE iphonesubinfo:DUMP OF SERVICE isms:DUMP OF SERVICE isub:DUMP OF SERVICE jobscheduler:DUMP OF SERVICE karaoke:DUMP OF SERVICE launcherapps:DUMP OF SERVICE lenovopermission:DUMP OF SERVICE location:DUMP OF SERVICE lock_settings: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 media.sound_trigger_hw:DUMP OF SERVICE media_projection:DUMP OF SERVICE media_router:DUMP OF SERVICE media_session:DUMP OF SERVICE meminfo:DUMP OF SERVICE mount:DUMP OF SERVICE netpolicy:DUMP OF SERVICE netstats:DUMP OF SERVICE network_management:DUMP OF SERVICE network_score:DUMP OF SERVICE nfc:DUMP OF SERVICE notification:DUMP OF SERVICE package:rUMP OF SERVICE permission:DUMP OF SERVICE phone:DUMP OF SERVICE power:DUMP OF SERVICE print:DUMP OF SERVICE procstats:DUMP OF SERVICE qti.ims.connectionmanagerservice:DUMP OF SERVICE restrictions:DUMP OF SERVICE rttmanager:DUMP OF SERVICE samplingprofiler:DUMP OF SERVICE scheduling_policy:DUMP OF SERVICE search:DUMP OF SERVICE sensorservice:DUMP OF SERVICE serial:DUMP OF SERVICE servicediscovery:DUMP OF SERVICE simphonebook:DUMP OF SERVICE sip:DUMP OF SERVICE start_shutdown:DUMP OF SERVICE statusbar:DUMP OF SERVICE telecom:DUMP OF SERVICE telephony.registry:DUMP OF SERVICE textservices:DUMP OF SERVICE trust:DUMP OF SERVICE uimode:DUMP OF SERVICE updatelock:DUMP OF SERVICE usagestats:DUMP OF SERVICE usb:DUMP OF SERVICE user:DUMP OF SERVICE vendor.qcom.PeripheralManager:DUMP OF SERVICE vibrator:DUMP OF SERVICE voiceinteraction:DUMP OF SERVICE wallpaper:DUMP OF SERVICE wbc_service:DUMP OF SERVICE webviewupdate:DUMP OF SERVICE wfdservice:DUMP OF SERVICE wifi:DUMP OF SERVICE wifip2p:DUMP OF SERVICE wifiscanner:DUMP OF SERVICE window:
二. dumpsys用法
(1)前面输入每一行都是都可以组成一条dumpsys指令。例如:DUMP OF SERVICE meminfo
dumpsys meminfo //输出当前所有memory相关的信息
(2)当我们想查看具体某个应用的内存使用情况,例如QQ:
dumpsys meminfo com.tencent.mobileqq
运行结果:
Applications Memory Usage (kB):Uptime: 7382804 Realtime: 7382804** MEMINFO in pid 22590 [com.tencent.mobileqq] ** Pss Private Private Swapped Heap Heap Heap Total Dirty Clean Dirty Size Alloc Free ------ ------ ------ ------ ------ ------ ------ Native Heap 8701 8416 0 0 16384 10626 5757 Dalvik Heap 10247 6548 0 0 37655 22685 14970 Dalvik Other 633 632 0 0 Stack 820 820 0 0 Gfx dev 68 68 0 0 Other dev 25 0 24 0 .so mmap 5365 164 3236 0 .apk mmap 564 0 360 0 .ttf mmap 378 0 60 0 .dex mmap 5690 0 4368 0 .oat mmap 2711 0 272 0 .art mmap 2825 1596 12 0 Other mmap 52 4 0 0 Unknown 151 140 0 0 TOTAL 38230 18388 8332 0 54039 33311 20727 Objects Views: 8 ViewRootImpl: 1 AppContexts: 3 Activities: 1 Assets: 3 AssetManagers: 3 Local Binders: 23 Proxy Binders: 23 Parcel memory: 9 Parcel count: 39 Death Recipients: 2 OpenSSL Sockets: 0 SQL MEMORY_USED: 0 PAGECACHE_OVERFLOW: 0 MALLOC_SIZE: 62
(3)帮助信息
dumpsys meminfo -h //此处以meminfo为例,其他指令也是类同
运行结果
meminfo dump options: [-a] [-d] [-c] [--oom] [process] -a: include all available information for each process. -d: include dalvik details when dumping process details. -c: dump in a compact machine-parseable representation. --oom: only show processes organized by oom adj. --local: only collect details locally, don't call process. --package: interpret process arg as package, dumping all processes that have loaded that package.If [process] is specified it can be the name orpid of a specific process to dump.
三. dumpsys常用指令
dumpsys指令很多, 下面列举一些常用的dumpsys指令的功能
dumpsys package <package_name> //查看指定包名的信息 dumpsys activity <package_name> //查看指定包名的activity信息 dumpsys alarm //查看Alarm信息 dumpsys audio //查看声音信息 dumpsys battery //查看电池信息 dumpsys cpuinfo //查看CPU信息 dumpsys meminfo <package_name>//查看指定包名的内存信息 dumpsys netstats//查看网络统计信息 dumpsys diskstats //查看空间free状态 dumpsys jobscheduler //查看任务计划 dumpsys power//查看功耗信息 dumpsys wifi//查看wifi信息
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