用以下命令可以查看程序的内存使用情况：
adb shell dumpsys meminfo $package_name or $pid
此外adb shell dumpsys命令还可以用来查看系统服务信息，使用下面命令可以输出系统当前支持的服务：
adb shell service list
输出：
Microsoft Windows [版本 6.1.7601]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
C:\Users\asus>adb shell service list
Found 163 services:
0 call_adapter: [com.android.internal.telecom.IMzInCallAdapter]
1 flyme_novccusagestats: [android.nonvccUsageStats.INonVccStatsInterfaces]
2 alphame_server: [com.meizu.common.alphame.IAlphaMe]
3 GbaService: [com.mediatek.gba.IGbaService]
4 dcm_service: [com.meizu.datamanager.IDataCollectManagerInterface]
5 GpuAppSpectatorService: [com.mediatek.GpuAppSpectatorService]
6 carrier_config: [com.android.internal.telephony.ICarrierConfigLoader]
7 phone_ext: [android.telephony.ITelephonyExt]
8 phoneEx: [com.mediatek.internal.telephony.ITelephonyEx]
9 phone: [com.android.internal.telephony.ITelephony]
10 isms: [com.android.internal.telephony.ISms]
11 iphonesubinfo: [com.android.internal.telephony.IPhoneSubInfo]
12 simphonebook: [com.android.internal.telephony.IIccPhoneBook]
13 IIccPhoneBookMz: [com.android.internal.telephony.meizu.IIccPhoneBookMz]
14 telecom: [com.android.internal.telecom.ITelecomService]
15 isub: [com.android.internal.telephony.ISub]
16 ims: [com.android.ims.internal.IImsService]
17 wfo: [com.mediatek.wfo.IWifiOffloadService]
18 flyme_theme_service: [android.content.res.flymetheme.IFlymeThemeManager]
19 contexthub_service: [android.hardware.location.IContextHubService]
20 dns_listener: [android.net.metrics.IDnsEventListener]
21 connmetrics: [android.net.IIpConnectivityMetrics]
22 connectivity_metrics_logger: [android.net.IConnectivityMetricsLogger]
23 bluetooth_manager: [android.bluetooth.IBluetoothManager]
24 trp: [meizu.security.ITRPEng]
25 flyme_intelligent_engine: [android.perf.IIntelligentEngineService]
26 flyme_packagemanager: [android.content.pm.IFlymePackageManager]
27 flyme_wallpaper: [meizu.wallpaper.IFlymeWallpaper]
28 device_states: [meizu.os.IDeviceStateService]
29 hips_service: [meizu.hips.IFlymeHipsService]
30 flyme_permission: [meizu.security.IFlymePermissionService]
31 gesture_manager: [android.view.IGestureManager]
32 access_control: [meizu.security.IAccessControlManager]
33 move_window: [meizu.view.IMoveWindow]
34 imms: [com.android.internal.telephony.IMms]
35 media_projection: [android.media.projection.IMediaProjectionManager]
36 mtk-perfservice: [com.mediatek.perfservice.IPerfService]
37 launcherapps: [android.content.pm.ILauncherApps]
38 shortcut: [android.content.pm.IShortcutService]
39 fingerprint: [android.hardware.fingerprint.IFingerprintService]
40 trust: [android.app.trust.ITrustManager]
41 media_router: [android.media.IMediaRouterService]
42 media_session: [android.media.session.ISessionManager]
43 restrictions: [android.content.IRestrictionsManager]
44 print: [android.print.IPrintManager]
45 graphicsstats: [android.view.IGraphicsStats]
46 dreams: [android.service.dreams.IDreamManager]
47 commontime_management: []
48 network_time_update_service: []
49 samplingprofiler: []
50 diskstats: []
51 voiceinteraction: [com.android.internal.app.IVoiceInteractionManagerService]
52 appwidget: [com.android.internal.appwidget.IAppWidgetService]
53 backup: [android.app.backup.IBackupManager]
54 soundtrigger: [com.android.internal.app.ISoundTriggerService]
55 jobscheduler: [android.app.job.IJobScheduler]
56 hardware_properties: [android.os.IHardwarePropertiesManager]
57 serial: [android.hardware.ISerialManager]
58 usb: [android.hardware.usb.IUsbManager]
59 midi: [android.media.midi.IMidiManager]
60 DockObserver: []
61 audio: [android.media.IAudioService]
62 wallpaper: [android.app.IWallpaperManager]
63 dropbox: [com.android.internal.os.IDropBoxManagerService]
64 search_engine: [com.mediatek.search.ISearchEngineManagerService]
65 search: [android.app.ISearchManager]
66 country_detector: [android.location.ICountryDetector]
67 location: [android.location.ILocationManager]
68 devicestoragemonitor: []
69 notification: [android.app.INotificationManager]
70 recovery: [android.os.IRecoverySystem]
71 updatelock: [android.os.IUpdateLock]
72 servicediscovery: [android.net.nsd.INsdManager]
73 pppoe: [android.net.pppoe.IPppoeManager]
74 connectivity: [android.net.IConnectivityManager]
75 ethernet: [android.net.IEthernetManager]
76 rttmanager: [android.net.wifi.IRttManager]
77 wifiscanner: [android.net.wifi.IWifiScanner]
78 wifi: [android.net.wifi.IWifiManager]
79 wifip2p: [android.net.wifi.p2p.IWifiP2pManager]
80 netpolicy: [android.net.INetworkPolicyManager]
81 netstats: [android.net.INetworkStatsService]
82 network_score: [android.net.INetworkScoreService]
83 textservices: [com.android.internal.textservice.ITextServicesManager]
84 networkmanagement_service_flyme: [android.os.INetworkManagementServiceFlyme]
85 network_management: [android.os.INetworkManagementService]
86 clipboard: [android.content.IClipboard]
87 flyme_statusbar: [meizu.statusbar.IFlymeStatusBarService]
88 statusbar: [com.android.internal.statusbar.IStatusBarService]
89 device_policy: [android.app.admin.IDevicePolicyManager]
90 deviceidle: [android.os.IDeviceIdleController]
91 persistent_data_block: [android.service.persistentdata.IPersistentDataBlockService]
92 lock_settings: [com.android.internal.widget.ILockSettings]
93 uimode: [android.app.IUiModeManager]
94 mount: [IMountService]
95 accessibility: [android.view.accessibility.IAccessibilityManager]
96 input_method: [com.android.internal.view.IInputMethodManager]
97 pinner: []
98 vrmanager: [android.service.vr.IVrManager]
99 input: [android.hardware.input.IInputManager]
100 window: [android.view.IWindowManager]
101 alarm: [android.app.IAlarmManager]
102 consumer_ir: [android.hardware.IConsumerIrService]
103 vibrator: [android.os.IVibratorService]
104 content: [android.content.IContentService]
105 account: [android.accounts.IAccountManager]
106 media.camera.proxy: [android.hardware.ICameraServiceProxy]
107 telephony.registry: [com.android.internal.telephony.ITelephonyRegistry]
108 scheduling_policy: [android.os.ISchedulingPolicyService]
109 webviewupdate: [android.webkit.IWebViewUpdateService]
110 usagestats: [android.app.usage.IUsageStatsManager]
111 battery: []
112 sensorservice: [android.gui.SensorServer]
113 device_control: [meizu.os.IDeviceControlService]
114 flyme_error_report_manager: [android.app.IFlymeErrorReportManager]
115 anrmanager: [android.app.IANRManager]
116 processinfo: [android.os.IProcessInfoService]
117 permission: [android.os.IPermissionController]
118 cpuinfo: []
119 dbinfo: []
120 gfxinfo: []
121 meminfo: []
122 procstats: [com.android.internal.app.procstats.IProcessStats]
123 activity: [android.app.IActivityManager]
124 user: [android.os.IUserManager]
125 otadexopt: [android.content.pm.IOtaDexopt]
126 package: [android.content.pm.IPackageManager]
127 netd: [android.net.INetd]
128 media.mmsdk: [com.mediatek.mmsdk.IMMSdkService]
129 media.camera: [android.hardware.ICameraService]
130 display: [android.hardware.display.IDisplayManager]
131 sub_display_power: [meizu.os.ISubDisplayPowerManager]
132 power: [android.os.IPowerManager]
133 appops: [com.android.internal.app.IAppOpsService]
134 batterystats: [com.android.internal.app.IBatteryStats]
135 pps_server: [com.meizu.pps.IPPS]
136 media.sound_trigger_hw: [android.hardware.ISoundTriggerHwService]
137 media.radio: [android.hardware.IRadioService]
138 media.audio_policy: [android.media.IAudioPolicyService]
139 media.VTS: [android.hardware.IVTService]
140 gpu: [android.ui.IGpuService]
141 SurfaceFlinger: [android.ui.ISurfaceComposer]
142 drm.drmManager: [drm.IDrmManagerService]
143 meizu.camera: [meizu.camera.ICameraService]
144 GuiExtService: [GuiExtService]
145 batteryproperties: [android.os.IBatteryPropertiesRegistrar]
146 PQ: [PQService]
147 media.resource_manager: [android.media.IResourceManagerService]
148 media.player: [android.media.IMediaPlayerService]
149 AAL: [AALService]
150 media.extractor: [android.media.IMediaExtractorService]
151 media.drm: [android.media.IMediaDrmService]
152 media.audio_flinger: [android.media.IAudioFlinger]
153 android.security.keystore: [android.security.IKeystoreService]
154 android.vendor.meizu.IFacerecoDaemon: [android.vendor.meizu.IFacerecoDaemon]
155 android.service.gatekeeper.IGateKeeperService: [android.service.gatekeeper.IGateKeeperServic
e]
156 program_binary: []
157 hotknotnativeservice: []
158 android.hardware.fingerprint.IGoodixFingerprintDaemon: [android.hardware.fingerprint.IGoodix
FingerprintDaemon]
159 media.codec: [android.media.IMediaCodecService]
160 mtk.codecservice: []
161 android.hardware.fingerprint.IFingerprintDaemon: [android.hardware.fingerprint.IFingerprintD
aemon]
162 NvRAMAgent: [NvRAMAgent]
查询到运行的system service后，就可以在dumpsys后面加上service的名字，查看指定的service信息。
adb shell dumpsys activity
adb shell dumpsys cpuinfo
adb shell dumpsys battery
adb shell dumpsys window
有些service能够接收额外的参数，我们可以使用-h查看帮助信息。
adb shell dumpsys package -h
adb shell dumpsys activity -h
例如：dumpsys activity -p 包名 可以过滤一个包的信息
