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-<html devsite>
- <head>
- <title>Dumpsys System Diagnostics</title>
- <meta name="project_path" value="/_project.yaml" />
- <meta name="book_path" value="/_book.yaml" />
- </head>
- <body>
- <!--
- Copyright 2017 The Android Open Source Project
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- -->
-
-
-
-<p>The <code>dumpsys</code> tool runs on the device and provides information about the status
-of system services. </p>
-
-<h2 id=how_to_use_dumpsys>How to use dumpsys</h2>
-
-<p>If you run <code>adb shell dumpsys</code>, you’ll get diagnostic output for
-all system services, which is usually more than you want. For more manageable
-output, specify the service you would like to examine. </p>
-
-<p>For example, the following command:</p>
-
-<pre class="devsite-terminal devsite-click-to-copy">
-adb shell dumpsys input
-</pre>
-
-<p>provides system data for input components such as touchscreens or built-in
-keyboards.</p>
-
-<h2 id=list_of_system_services>List of system services</h2>
-
-
-<p>For a complete list of system services that you can use with dumpsys, try the
-following command:</p>
-
-<pre class="devsite-terminal devsite-click-to-copy">
-adb shell dumpsys -l
-</pre>
-
-<p>Example output:</p>
-<pre class="devsite-click-to-copy">
-Currently running services:
- DockObserver
- SurfaceFlinger
- accessibility
- account
- activity
- alarm
- android.security.keystore
- appops
- appwidget
- assetatlas
- audio
- backup
- battery
- batteryproperties
- batterystats
- bluetooth_manager
- clipboard
- connectivity
- consumer_ir
- content
- country_detector
- cpuinfo
- dbinfo
-...
-</pre>
-
-<h2 id=dumpsys_command-line_options>Dumpsys command-line options</h2>
-
-<p>Command-line options are different for different services. Here are a few
-common ones:</p>
-
-<ul>
- <li> For many services, you can append <code>-h</code> to see the help
-text.
- <li> For some services, you can append <code>-c</code> to view the data in
-a machine-friendly format. </ul>
-
-<h2 id=understanding_diagnostic_output>Understanding diagnostic output</h2>
-
-<p>For details on some of the most commonly used dumpsys services, see the
-following articles:</p>
-
-<ul>
- <li> <a
- href="/devices/input/diagnostics.html">Viewing Input Diagnostics (dumpsys input)</a>
- <li> <a href="procstats.html">Viewing RAM Usage Data (dumpsys procstats)</a>
- <li> <a href="netstats.html">Viewing Network Data (dumpsys netstats)</a>
- <li> <a href="/devices/tech/power/batterystats.html">Viewing Battery Usage Data (dumpsys batterystats)</a>
-</ul>
-
-
- </body>
-</html>