分享几个自己用过的获取app性能几个性能指标的代码
获取对应进程内存占用信息：
1 public void MemMonitor(){
2
3
4 new Thread() {
5 public void run() {
6 final ActivityManager ActivityList=(ActivityManager)getApplicationContext().getSystemService(ACTIVITY_SERVICE);
7 try {
8 Runtime.getRuntime().exec("am start --user 0 -n 包名/mainactivity名");
9 starttime=System.currentTimeMillis();
10
11 } catch (IOException e) {
12 Log.e("baih","启动应用失败");
13 }
14 while (true) {
15 Log.e("baih", "开始计算.....");
16 ActivityManager.MemoryInfo Mem1 = new ActivityManager.MemoryInfo();
17 ActivityList.getMemoryInfo(Mem1);
18 Long MemSize = Mem1.availMem;
19 Long Mem12=Mem1.threshold;
20 String leftMemSize = Formatter.formatFileSize(getBaseContext(), MemSize);
21 String leftMemSize1 = Formatter.formatFileSize(getBaseContext(), Mem12);
22
23 //获取受控极限堆值,获取非受控极限堆值
24 int i=ActivityList.getMemoryClass();//受控堆
25 int y=ActivityList.getLargeMemoryClass();//非受控堆
26
27 //计算进程内存占用
28 List<ActivityManager.RunningAppProcessInfo> AppList = ActivityList.getRunningAppProcesses();
29 for (ActivityManager.RunningAppProcessInfo am : AppList) {
30 if (am.processName.equals("包名")) {
31 long startedtime=System.currentTimeMillis();
32 long time=startedtime-starttime;
33 Log.e("baih","启动时间为:"+time+"MS");
34 int[] CMpid=new int[]{am.pid};
35 Debug.MemoryInfo[] MemInfo = ActivityList.getProcessMemoryInfo(CMpid);
36 AppPid=am.pid;
37 double MemorySize1 = MemInfo[0].dalvikPrivateDirty / 1024.0;
38 int temp = (int) (MemorySize1 * 100);
39 MemorySize1 = temp / 100.0;
40 String ProInfo = "";
41 ProInfo += "本机内存阀值：" + i + "MB\n " +
42 "程序包名:" + am.processName + " " + "\nPID:" + am.pid
43 + " " + "\n内存占用:" + MemorySize1 + "MB\n" + "\r\n";
44 Log.e("baih", ProInfo);
45 if(AppPid!=0)
46 {
47 Cpuinfo();//调用计算CPU占用率函数
48 }
49
50 Mem1 = null;
51 System.gc();
52 break;
53 } else {
54 Log.e("baih", "被测应用未运行");
55 Mem1 = null;
56 System.gc();
57 break;
58 }
59 }
60 try {
61 Thread.sleep(5000);
62 } catch (InterruptedException e) {
63 // TODO Auto-generated catch block
64 e.printStackTrace();
65 }
66 }
67 }
68 }.start();
69
70 }
获取进程CPU占用率：
//计算CPU总使用时间
private static long getTotalCpuTime() { // 获取系统总CPU使用时间
String[] cpuInfos = null;
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream("/proc/stat")), 1000);
String load = reader.readLine();
reader.close();
cpuInfos = load.split(" ");
} catch (IOException ex) {
ex.printStackTrace();
}
long totalCpu = Long.parseLong(cpuInfos[2])
+ Long.parseLong(cpuInfos[3]) + Long.parseLong(cpuInfos[4])
+ Long.parseLong(cpuInfos[6]) + Long.parseLong(cpuInfos[5])
+ Long.parseLong(cpuInfos[7]) + Long.parseLong(cpuInfos[8])+Long.parseLong(cpuInfos[9])+Long.parseLong(cpuInfos[10]);
//Log.e("baih", "CPU总使用时间:" + totalCpu + "======" + op);
return totalCpu;
}
//计算进程使用CPU时间
private static long getAppCpuTime() { // 获取应用占用的CPU时间
String[] cpuInfos = null;
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
new FileInputStream("/proc/" +AppPid + "/stat")), 1000);
String load = reader.readLine();
reader.close();
cpuInfos = load.split(" ");
} catch (IOException ex) {
ex.printStackTrace();
}
long appCpuTime = Long.parseLong(cpuInfos[13])
+ Long.parseLong(cpuInfos[14]) + Long.parseLong(cpuInfos[15])
+ Long.parseLong(cpuInfos[16]);
//Log.e("baih", "应用使用CPU时间:" + appCpuTime);
return appCpuTime;
}
//计算进程占用CPU率
public void Cpuinfo(){ //计算CPU占用率
new Thread(){
public void run(){
long TotalCpu1 = getTotalCpuTime();
long AppCpu1 = getAppCpuTime();
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
long TotalCpu2 = getTotalCpuTime();
long AppCpu2 = getAppCpuTime();
long CpuInfo = 100 * (AppCpu2 - AppCpu1) / (TotalCpu2 - TotalCpu1);
Log.e("baih", "CPU占用率=" + CpuInfo + "%");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}.start();
}
获取应用启动时间：
public void StartTime(){ //计算启动时间
ActivityManager ac1=(ActivityManager)getApplicationContext().getSystemService(ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> Applist1=ac1.getRunningAppProcesses();
while (true) {
for (ActivityManager.RunningAppProcessInfo mc1 : Applist1) {
if (mc1.processName.equals("包名")) {
startedtime = System.currentTimeMillis();
continue;
} else {
starttime = System.currentTimeMillis();
}
}
time = startedtime - starttime;
Log.e("baih", "启动时间为:" + time + "ms");
}
}
时间： 2024-12-21 18:49:09