Android自动化性能收集

Android 功能测试自动化框架较多，UIAutomator，Robotium，Appium等。Case执行过程中，可能希望收集手机的性能指标，包括内存、cpu、流量等。使用java+shell+bat简单实现了android手机性能收集。

简述

过程很简单：

  • 在启动自动化case前，执行收集信息的命令。

    其实就是一些adb shell命令，如下：

          adb shell top -n 1| awk '{print $3" "$10}' >> cpu.dat  
      adb shell ps | awk '{print $5" "$9}' >> mem.dat  

      //android sdk level 大于16  
      adb shell cat /proc/uid_stat/$uid/tcp_rcv >> $uid"_recv.dat"  
      adb shell cat /proc/uid_stat/$uid/tcp_snd >> $uid"_snd.dat"  

      //android sdk level 小于16   


      adb shell cat /proc/$pid/net/dev | grep wlan | awk '{print $2" "$10}' >> $pid"_net.dat"

  • 执行自动化case，可能需要很久。这个过程中，上面的命令在不断地执行
  • case执行结束，kill掉第一步中的命令
  • 分析收集到的dat文件，使用jscharts绘出走势图

脚本

CPU

使用top命令不断查看各进程的cpu占用

linux

get-android-cpu.sh

    #!/bin/sh

    #path--target/android-info/mem/dat
    cd ../../../
    mkdir -p target/android-info/cpu/dat
    mkdir -p target/android-info/cpu/html

    cp src/main/resources/jscharts.js target/android-info/cpu/html
    cd target/android-info/cpu/dat

    while true
    do
        adb shell top -n 1| awk '{print $3" "$10}' >> cpu.dat
        sleep 15
    done

windows

get-android-cpu.bat

    cd ..\..\jenkins\workspace\android-info-end3
    mkdir target\android-info\cpu\dat
    mkdir target\android-info\cpu\html

    copy src\main\resources\jscharts.js target\android-info\cpu\html
    cd target\android-info\cpu\dat

    :run
        adb shell top -n 1 | awk "{print $3\" \"$10}" >> cpu.dat
        ping 127.0.0.1 -n 15 > null
    goto run

MEMORY

使用ps命令不断查看各进程的内存占用

linux

get-android-mem.sh

    #!/bin/sh

    #path--target/android-info/mem/dat
    cd ../../../
    mkdir -p target/android-info/mem/dat
    mkdir -p target/android-info/mem/html
    cp src/main/resources/jscharts.js target/android-info/mem/html
    cd target/android-info/mem/dat

    while true
    do
        adb shell ps | awk '{print $5" "$9}' >> mem.dat
        sleep 15
    done

windows

    cd ..\..\jenkins\workspace\android-info-end3
    mkdir target\android-info\mem\dat
    mkdir target\android-info\mem\html
    copy src\main\resources\jscharts.js target\android-info\mem\html

    cd target\android-info\mem\dat

    :run
        adb shell ps | awk "{print $5\" \"$9}" >> mem.dat
        ping 127.0.0.1 -n 15 > null
    goto run

流量

android 4.0以上版本可以用/proc/uid_stat/$uid/tcp_rcv和/proc/uid_stat/$uid/tcp_snd来获取某个程序的上下行流量；而4.0以下版本要用cat /proc/$pid/net/dev来查看上下行流量。uid和pid的关系，可以从/data/system/packages.list这个文件中获取。

linux

判断android api level：

    #!/bin/sh
    #android 4.0以上和4.0以下方法不同
    #get android sdk level
    apileveltemp=`adb shell getprop | grep ro.build.version.sdk`
    apilevel=${apileveltemp:25:2}
    chmod +x *.sh

    echo "android api level:"$apilevel
    if [ $apilevel -gt 14 ]
    then
        ./get-android-net-gt-4.0.sh
    elif [ $apilevel -lt 14 ]
    then
        ./get-android-net-lt-4.0.sh
    fi

get-android-net-gt-4.0.sh

    #!/bin/sh

    #android api level great than 14(android 4.0)
    #path--target/android-info/net/dat
    cd ../../../
    mkdir -p target/android-info/net/dat
    mkdir -p target/android-info/net/html
    cp src/main/resources/jscharts.js target/android-info/net/html
    cd target/android-info/net/dat

    cd ..
    echo "adb pull/data/system/packages.list--start"
    adb pull /data/system/packages.list
    cd dat

    while true
    do

        echo "get net info from /proc/uid-stat/$uid"
        for i in `adb shell ls /proc/uid_stat`
        do
            #delete the Enter character
            uid=`echo $i | tr -d ["\r\n"]`
            adb shell cat /proc/uid_stat/$uid/tcp_rcv >> $uid"_recv.dat"
            adb shell cat /proc/uid_stat/$uid/tcp_snd >> $uid"_snd.dat"
        done
        sleep 15
    done

get-android-net-lt-4.0.sh

    #!/bin/sh


    #path--target/android-info/net/dat
    cd ../../../
    mkdir -p target/android-info/net/dat
    mkdir -p target/android-info/net/html
    cp src/main/resources/jscharts.js target/android-info/net/html
    cd target/android-info/net/dat

    #get /proc/$pid/net/dev
    while true
    do
        #get pid
        for i in `adb shell ps | awk '{print $2}'`
        do
            pid=`echo $i | tr -d ["\r\n"]`
            echo $pid
            adb shell cat /proc/$pid/net/dev | grep wlan | awk '{print $2" "$10}' >> $pid"_net.dat"
        done

        sleep 15
    done

windows

bat命令不熟，不知道如何在windows下实现linux下地反转义，这里用java代码实现。

    import java.io.*;

    /**
     * Created by Xuemeng Wang on 14-9-15.
     * api Level > 16
     */
    public class GetNetInfo {
        public static void main(String[] args) {

            String uidString = execCmd("adb shell ls /proc/uid_stat");
            String[] uidArray = uidString.split("\n");
            int length = uidArray.length-1;
            for(int i=0;i<=length-1;i++)
            {
                String contentRcv = execCmd("adb shell cat /proc/uid_stat/"+uidArray[i]+"/tcp_rcv");
                String contentSnd = execCmd("adb shell cat /proc/uid_stat/"+uidArray[i]+"/tcp_snd");
                System.out.println(System.getProperty("user.dir"));
                try {
                    File file = new File(uidArray[i]+"_recv.dat");
                    if(!file.exists()) file.createNewFile();

                    File file2 = new File(uidArray[i]+"_snd.dat");
                    if(!file2.exists()) file2.createNewFile();

                    FileWriter fileWriter1 = new FileWriter(file, true);
                    FileWriter fileWriter2 = new FileWriter(file2, true);
                    fileWriter1.write(contentRcv);
                    fileWriter2.write(contentSnd);
                    fileWriter1.close();
                    fileWriter2.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        public static String execCmd(String command)
        {
            BufferedReader br = null;
            StringBuffer stringBuffer = new StringBuffer();
            try {
                Process p = Runtime.getRuntime().exec(command);
                br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String line = null;
                while ((line = br.readLine()) != null) {
                if("".equals(line.trim())) continue;

                    stringBuffer.append(line+"\n");
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {

                if (br != null) {
                    try {
                        br.close();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
            return stringBuffer.toString();
        }
    }

api level小于16的情况，我没用到，略掉:)。

杀掉进程

linux: ps -ef | grep get-android- | grep -v grep | awk '{print $2}' | xargs kill -9

windows(后台运行，其实是cmd进程，注意下面会杀掉所有的cmd进程):

    taskkill /F /IM cmd.exe
    taskkill /F /IM adb.exe

结果收集

使用java分析dat，给出分析cpu的代码，工程已上传到github,https://github.com/yeetrack/android-performance。

CpuInfo.java

    package com.meilishuo.android.performance;

    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.testng.annotations.Test;

    import java.io.*;
    import java.util.ArrayList;
    import java.util.Iterator;
    import java.util.List;
    import java.util.TreeMap;

    /**
     * Created by victor on 14-9-9.
    */
    public class CpuInfo {
        private static final Logger logger = LoggerFactory.getLogger(MemInfo.class);
        private static final String JSCHARTPATH = "target/android-info/cpu/html/";
        private static final String MEMFILEPATH = "target/android-info/cpu/dat/cpu.dat";

        TreeMap<String, List<String>> cpuMap = new TreeMap<String, List<String>>();

        /**
        * 解析cpu.dat存储到map中
        */
        public void parseCpuFile()
        {
            File file = new File(MEMFILEPATH);
            if(null==file) return;

            try {
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
                String line = null;

                while((line=bufferedReader.readLine())!=null)
                {
                    String[] array = line.trim().split(" "); //空格分隔
                    if(null==array || array.length!=2 || !array[0].contains("%") || "".equals(array[1]) || "Name".equals(array[1]))
                        continue;
                    if(cpuMap.size()==0 || !cpuMap.containsKey(array[1]))
                    {
                        List<String> memList = new ArrayList<String>();
                        memList.add(array[0].substring(0, array[0].indexOf("%")));
                        cpuMap.put(array[1], memList);
                    }
                    else
                    {
                        cpuMap.get(array[1]).add(array[0].substring(0, array[0].indexOf("%")));
                    }
                }
                System.out.println(cpuMap.size());
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        /**
        * 将map中的数据写到到xml中
        */
        public void writeXmlFromMap()
        {
            if(null==cpuMap || cpuMap.size()==0)
                return;
            Iterator<String> it = cpuMap.keySet().iterator();
            while(it.hasNext())
            {
                String key = it.next();
                List<String> value = cpuMap.get(key);
                if(null==value || value.size()<=1)
                    continue;
                //写入xml
                File file = new File(JSCHARTPATH+key.replace("/", "_").replace(":", "_")+"_cpu.xml");
                try {
                    BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true)));
                    bufferedWriter.write(
                    "<?xml version=\"1.0\"?>\n" +
                            "<JSChart>\n" +
                            "\t<dataset type=\"line\">");
                    int pos = 1;
                    for(String index : value)
                    {
                        bufferedWriter.write("<data unit=\""+pos+"\" value=\""+index+"\"/>\n");
                        pos++;
                    }
                    bufferedWriter.write(
                    "</dataset>\n" +
                            "\t<optionset>\n" +
                            "\t\t<option set=\"setLineColor\" value=\"'#8D9386'\"/>\n" +
                            "\t\t<option set=\"setLineWidth\" value=\"4\"/>\n" +
                            "\t\t<option set=\"setTitleColor\" value=\"'#7D7D7D'\"/>\n" +
                            "\t\t<option set=\"setAxisColor\" value=\"'#9F0505'\"/>\n" +
                            "\t\t<option set=\"setGridColor\" value=\"'#a4a4a4'\"/>\n" +
                            "\t\t<option set=\"setAxisValuesColor\" value=\"'#333639'\"/>\n" +
                            "\t\t<option set=\"setAxisNameColor\" value=\"'#333639'\"/>\n" +
                            "\t\t<option set=\"setTextPaddingLeft\" value=\"0\"/>\n" +
                            "\t</optionset>\n " +
                            "</JSChart>");
                    bufferedWriter.flush();
                    bufferedWriter.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        /**
        * 生成jschart html文件
        */
        public void writeJsHtml()
        {
            File file = new File(JSCHARTPATH);
            File[] xmlFiles = file.listFiles(new FileFilter() {
                @Override
                public boolean accept(File pathname) {
                    return pathname.getName().endsWith("_cpu.xml");
                }
            });
            if(null== xmlFiles || xmlFiles.length==0) return;
            for(File index : xmlFiles)
            {
                File htmlFile = new File(index.getAbsolutePath().replace(".xml", ".html"));
                try {
                    BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(htmlFile));
                    bufferedWriter.write(
                    "<html>\n" +
                            "<head>\n" +
                            "\n" +
                            "<title>JSChart</title>\n" +
                            "\n" +
                            "<script type=\"text/javascript\" src=\"jscharts.js\"></script>\n" +
                            "\n" +
                            "</head>\n" +
                            "<body>\n" +
                            "<div id=\"result\">\n" +
                            "<h3>"+htmlFile.getName().replace(".xml", "")+"</h3>" +
                            "<div id=\"graph\">Loading graph...</div>\n" +
                            "\n" +
                            "<script type=\"text/javascript\">\n" +
                            "\t\n" +
                            "\tvar myChart = new JSChart('graph', 'line');\n" +
                            "\tmyChart.setDataXML(\""+index.getName()+"\");\n" +
                            "\tmyChart.draw();\n" +
                            "\t\n" +
                            "</script>\n" +
                            "\n" +
                            "\n" +
                            "</div>\n" +
                            "</body>\n" +
                            "</html>\n"
                    );
                    bufferedWriter.flush();
                    bufferedWriter.close();

                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        public void writeAllJsHtml()
        {
            File[] files = new File(JSCHARTPATH).listFiles(new FileFilter() {
                @Override
                public boolean accept(File pathname) {
                    return pathname.getName().endsWith("_cpu.html");
                }
            });
            if(files.length==0) return;

            File allHtmlFile = new File(JSCHARTPATH+"all_cpu.html");
            if(allHtmlFile.exists())
                allHtmlFile.delete();

            try {
                allHtmlFile.createNewFile();
                BufferedWriter out = new BufferedWriter(new FileWriter(allHtmlFile, true));
                String header =
                "<!DOCTYPE html>\n" +
                        "<html>\n" +
                        "<head lang=\"en\">\n" +
                        "    <meta charset=\"UTF-8\">\n" +
                        "    <title>cpu使用率</title>\n" +
                        "</head>\n" +
                        "<body>\n" +
                        "<h1> cpu使用率</h1>\n";
                out.write(header);


                for(File index : files)
                {
                    String fileName = index.getName();

                    out.write("<iframe src=\""+fileName+"\" width=\"100%\" height=\"500\"></iframe><br>\n");

                }

                out.write("</body>\n</html>");
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        @Test
        public void generateCpuHtmlInfo()
        {
            CpuInfo cpuInfo = new CpuInfo();
            cpuInfo.parseCpuFile();
            cpuInfo.writeXmlFromMap();
            cpuInfo.writeJsHtml();
            cpuInfo.writeAllJsHtml();
        }
    }

jenkins问题

  • 执行自动化前，调用shell、bat文件必须在后台运行，默认情况下，jenkins启动的进程会阻塞后面进程执行。jenkins支持后台启动进程，参考链接：Jenkins启动守护进程后台持续运行
  • windows在使用at启动定时任务时，当前的路径是C:\Windows\system32（其实就是cmd.exe的路径），当时这个忽略，各种路径问题。
  • windows使用at命令执行bat脚本，发现java,javac等命令执行无反应，不知道为何（环境变量配了，jenkins可以直接调用java等命令），后来发现将路径写后执行成功。
  • 最后注意一点，一定要记得kill掉后台的进程，否则文件写满硬盘，:)。

附上生成的html示例地址：https://github.com/yeetrack/android-performance/tree/master/target/android-info/cpu/html

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© 空空博客，本文链接：https://www.yeetrack.com/?p=970

2014 年 9 月 19 日 by 软件 0

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