public static float getProcessCpuRate() { float totalCpuTime1 = getTotalCpuTime(); float processCpuTime1 = getAppCpuTime(); try { Thread.sleep(360); } catch (Exception e) { } float totalCpuTime2 = getTotalCpuTime(); float processCpuTime2 = getAppCpuTime(); float cpuRate = 100 * (processCpuTime2 - processCpuTime1) / (totalCpuTime2 - totalCpuTime1); return cpuRate; } public 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]); return totalCpu; } public static long getAppCpuTime() { // 获取应用占用的CPU时间 String[] cpuInfos = null; try { int pid = android.os.Process.myPid(); BufferedReader reader = new BufferedReader(new InputStreamReader( new FileInputStream("/proc/" + pid + "/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]); return appCpuTime; }
时间: 2024-10-07 10:02:59