adb shell dumpsys gfxinfo

Let’s take an example with the Galaxy S9 Plus. adb shell dumpsys gfxinfo What is ADB. LargeImages is a smaller demo app and the Systrace output will be easier to analyze. Start a Systrace trace that is 10 seconds long either from the command line or Android Device Monitor. a series of Codelabs. adb shell dumpsys -l Output will be as below. Use Systrace to get more information about possible causes of the problem. Android Device Monitor launches in a separate window. Fig 3 dumpsys activity: 2. dumpsys … A pop-up appears, indicating that tracing is active. If you are running on an older version of Android, follow the instructions on the Analyze UI Performance with Systrace page. Anda juga dapat menyertakan opsi framestats untuk memberikan informasi pengaturan waktu frame yang sangat detail dari frame terbaru, sehingga Anda dapat melacak dan men-debug masalah dengan lebih akurat, seperti ditampilkan di bawah ini: adb shell dumpsys gfxinfo package-name framestats This frame is green because it completed rendering in the allotted 16 milliseconds per frame. $ adb shell dumpsys gfxinfo com.frogermcs.framemetrics As a result we get: These statistics are generated for last 120 frames for given application package ( hint: this is not always last 2 seconds - frames are drawn only when Android is requested to do this e.g. If necessary, zoom (w and s keys on the keyboard) and pan (a and d keys on the keyboard) to see individual frames. If you need more time to perform these actions, run the command with --time=30, as you did with the Android Device Monitor example above. Use alerts generated by the tool to find potential performance issues. Check your Python installation from a command-line window: If you do not have Python installed, follow the instructions for your platform at python.org. Click the Systrace button In order to do that, you need to know the actual Pixel density of your device. 原文: http://www.cnblogs.com/yezhennan/p/5442031.html UI性能测... 注意事项：布局优化；尽量使用include、merge、ViewStub标签，尽量不存在冗余嵌套及过于复杂布局（... 1.前言在手机App竞争越来越激烈的今天，Android App的各项性能特别是流畅度不如IOS，安卓基于jav... 本篇文章是基于谷歌有关Graphic的一篇概览文章的翻译：http://source.android.com/de... https://developer.android.com/training/testing/performance.html, 帧的的预期起点。如果此值与VSYNC不同，是由于 UI 线程中的工作使其无法及时响应垂直同步信号所造成的。, 花费在vsync监听器和帧绘制的时间（Choreographer frame回调，动画，View.getDrawingTime（）等）, 输入队列中最旧输入事件的时间戳，如果没有输入事件，则输入Long.MAX_VALUE。, 然而，通过查看（FRAME_COMPLETED - NEWEST_INPUT_EVENT），可以大致了解应用程序添加的延迟时间。, 通过查看这段时间和ANIMATION_START之间的时间，可以测量应用程序处理输入事件的时间。, 如果此数字很高（> 2ms），请检查您的应用是否编写了自定义动画以确保它们适用于动画。, performTraversals的绘制阶段开始的时间。这是录制任何无效视图的显示列表的起点。, 这和SYNC_START之间的时间是在树中所有无效视图上调用View.draw（）所花费的时间。, 这标志着开始同步阶段的消息被发送到RenderThread的时刻。如果此时间和SYNC_START之间的时间很长（> 0.1ms左右），则意味着RenderThread忙于处理不同的帧。在内部，这被用来区分帧做了太多的工作，超过了16ms的预算，由于前一帧超过了16ms的预算，帧被停止了。, 如果此时间与ISSUE_DRAW_COMMANDS_START之间的时间很长（> 0.4ms左右），则通常表示有许多新的位图必须上传到GPU。, 这段时间和FRAME_COMPLETED之间的时间间隔显示了应用程序正在生产多少GPU。像这样出现太多透支或低效率渲染效果的问题。, 帧的完整时间。花在这个帧上的总时间可以通过FRAME_COMPLETED - INTENDED_VSYNC来计算。. Click OK to start tracing. What is ADB. They produce a huge amount of detailed information about the system and apps. Systrace (Android System Trace) helps you analyze how the execution of your app fits into the many running systems on an Android device. dumpsys是一款运行在设备上的Android工具，将 gfxinfo命令传递给dumpsys可在logcat中提供输出，其中包含各阶段发生的动画以及帧相关的性能信息。 > adb shell dumpsys gfxinfo < PACKAGE_NAME > 该命令可用于搜集帧的耗时数据。运行该命令后，可以等到如下的结果： Practice navigating around the file to find information about your app. What’s even better is that, since Android 6.0 (API level 23), dumpsys prints out aggregated analysis of frame data collected across the entire lifetime of the process. Be open to having guessed wrong! Adb shell screenrecord - record video ADB 2. Each app process contains all of the tracing signals from each thread it contains, including a hierarchy of high level tracing events based on the enabled tracing categories. Description. Run the following command to get information about frames. adb shell dumpsys battery adb shell dumpsys batterystats Changing the Pixel density using ADB Shell. Specific commands can be used to try again. Python language installed and included in your development computer's execution path. adb shell dumpsys gfxinfo com.quicinc.trepn framestats. Some apks will not have a launch activity that's detectable with aapt dump badging example.apk.After the apk is installed on the device ADB.prototype.startApp should invoke adb shell dumpsys package com.example.package to find the launch activity.. android.intent.action.MAIN: 42c634c0 com.pkg/.TheLauncherActivity filter 42f8f388 Action: "android.intent.action.MAIN" Category: … Dumpsys is an Android tool that runs on the device and dumps interesting information about the status of system services. Examine the alerts, which show potential performance issues with your code. adb shell dumpsys display adb shell dumpsys battery adb shell dumpsys batterystats adb shell wm density. The command is adb shell dumpsys gfxinfo A sample dumpsys is available ... android performance-testing dumpsys. To analyze your app with Systrace, you first collect a trace log of your app and the system activity. Once dumpsys is invoked with framestats, it will dump detailed frame timing information of recent frames. Open the Alerts tab on the right edge of the trace window. Systrace is written in the Python language. @leeoniya FWIW you mentioned in your initial report to use "Show view updates", but you're much better off going to Monitoring > Profile HWUI rendering in Developer Settings, and set it to "In adb shell dumpsys gfxinfo". adb shell dumpsys battery set level (change the level from 0 to 100) adb shell dumpsys battery set status (change the level to unknown, charging, discharging, not charging or full) adb shell dumpsys battery reset (reset the battery) adb shell dumpsys battery set usb (change the status of USB connection. Starting with Android 6.0, you can get even more detailed information using the, The tracing signals defined by the system do not have visibility into everything your app is doing, so you may want to add your own signals. By executing the adb command: “adb shell dumpsys meminfo ”, you can see all of your application's current allocations, measured in kilobytes. 1answer 184 views Click on a system action to show more timing information in the pane below the graph. Run the Systrace tool to analyze the LargeImages app. Decoding the image is taking up all the time AND this decoding is being done on the UI Thread. A mobile device running at least Android 4.1 with USB Debugging enabled in Developer Options. Passing the gfxinfo command to dumpsys provides an output in logcat with performance information relating to frames of animation that are occurring during the recording phase. adb shell dumpsys gfxinfo framestats. You can run on an emulator for practice, but your trace data may not be accurate. This practical will help you get started, but fully analyzing Systrace and dumpsys output takes a lot of experience and is beyond the scope of this practical. This can be quantified by collecting the data (adb shell dumpsys gfxinfo) and graphing. Both of these powerful tools let you take a detailed look at what is happening when your app runs. 原文地址：https://developer.android.com/training/testing/performance.html, dumpsys是一款运行在设备上的Android工具，将 gfxinfo命令传递给dumpsys可在logcat中提供输出，其中包含各阶段发生的动画以及帧相关的性能信息。, 那么以上这些数据是怎么统计得到的呢，这时候就要引入framestat了，framestat其实是每一个frame的相信信息，记录这不同阶段下的时间戳。也就是更精准的帧的时间戳信息。, 在Android 6.0以后为gfxinfo 提供了一个新的参数framestats，其作用可以从最近的帧中提供非常详细的帧信息，以便您可以更准确地跟踪和调试问题。, 此命令将应用程序生成的最后120帧信息打印出，其中包含纳秒时间戳。以下是来自adb dumpsys gfxinfo 的示例原始输出framestats：, 此输出的每一行代表应用程序生成的一帧。每一行的列数都相同，每列对应描述帧在不同的时间段的耗时情况。下一节将详细介绍这种格式，包括每列代表的内容。, 由于数据块以CSV格式输出，因此将其粘贴到您选择的电子表格工具中非常简单，或者通过脚本进行收集和分析。下表说明了输出数据列的格式。所有的时间戳都是纳秒。, 你可以用不同的方式使用这些数据。例如下面的直方图，显示不同帧时间的分布（FRAME_COMPLETED - INTENDED_VSYNC），如下图所示。, 这张图一目了然地告诉我们，大多数的帧耗时都远低于16ms（用红色表示），但几帧明显超过了16ms。随着时间的推移，我们可以查看此直方图中的变化，以查看批量变化或新创建的异常值。您还可以根据数据中的许多时间戳来绘制出输入延迟，布局花费的时间或其他类似的感兴趣度量。, 如果在开发者选项中的CPU呈现模式分析中选择adb shell dumpsys gfxinfo，则adb shell dumpsys gfxinfo命令将输出最近120帧的时间信息，并将其分成几个不同的类别，可以直观的显示各部分的快慢。, 与上面的framestats类似，将它粘贴到您选择的电子表格工具中非常简单，或者通过脚本进行收集和解析。下图显示了应用程序生成的帧每个阶段的详细耗时。, 运行gfxinfo，复制输出，将其粘贴到电子表格应用程序中，并将数据绘制为直方图的结果。, 每个垂直条代表一帧动画; 其高度表示计算该动画帧所用的毫秒数。条形图中的每个彩色段表示渲染管道的不同阶段，以便您可以看到应用程序的哪些部分可能会造成瓶颈。有关了解渲染管道的详细信息以及如何优化渲染管道，请参阅 Invalidations Layouts和Performance视频。, framestats信息和frame耗时信息通常为2s收集一次（一次120帧，一帧16ms，耗时约2s）。为了精确控制时间窗口，例如，将数据限制为特定的动画，您可以重置所有计数器，并重新收集的数据。, dumpsys是能发现问题或者判断问题的严重性，但无法定位真正的原因。如果要定位原因，应当配合systrace工具使用，请参照systrace工具。, 有关Android渲染管道如何工作的更多信息，您可以在其中找到的常见问题以及如何解决这些问题，以下某些资源可能对您有用：, 用户界面性能测试的一种方法是简单地让人工测试人员在目标应用上执行一组用户操作，并且可以直观地查找是否出现问题，或者使用工具驱动方法花费大量时间来查找它。但是这种手动方法充满了危险 - 人类感知帧速率变化的能力差别很大，这也是耗时，乏味和容易出错的。, 更有效的方法是从自动UI测试中记录和分析关键性能指标。Android 6.0包含新的日志记录功能，可以轻松确定应用程序动画中jank的数量和严重程度，并可用于构建严格的流程以确定当前的性能并跟踪未来的性能目标。, 要了解有关Android性能测试的更多信息，请参阅自动化性能测试代码实验室。在此代码中，您将学习如何编写和执行自动化测试，并查看结果以了解如何提高应用性能。. Select a red circle. You will not build a new app in this practical. dumpsys command calls the system services' dump method (more detail on this answer on Stack Overflow), and for dumpsys location, the respective service is LocationManagerService.. Work with Developer Options on a mobile device. Systrace is a powerful tool, and the best way to learn is by using it a lot, by spending time looking at all the outputs. This trace should be easier to navigate than the trace from the WordListSQL, because this trace is a lot smaller. It puts together system and application thread execution on a common timeline. Some devices do not have Systrace enabled on the kernel they are running, and you will get an error while generating the trace. Systrace analyzes the events in the trace and highlights many performance problems as alerts, suggesting what to do next. > adb shell dumpsys gfxinfo framestats. Adb shell pm create-user or remove-user Snapshot 1. In this task, you learn to navigate the trace output and look at the Frames section. This API allows collection of data at a much higher granularity than does adb shell dumpsys gfxinfo. Android Debug Bridge (adb) is a command line tool that lets you communicate with an emulator or connected Android device. When it has finished, open the trace in your Chrome browser. 0x00000000 (00000) 47455420 2f696e74 662e7068 703f5f74 GET /intf.php?_t 0x00000010 (00016) 6f6b656e 3d617070 31266d65 74686f64 oken=app1&method 0x00000020 (00032) 3d537973 2e676574 53657276 65725469 =Sys.getServerTi 0x00000030 (00048) 6d657374 616d7026 7265663d 70636865 mestamp&ref=pche 0x00000040 (00064) 6c706572 26746963 6b3d3931 37353026 lper&tick=91750& …
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