* Compute and return the total CPU usage, in percent. Reader = new RandomAccessFile("/proc/stat", "r") Select a session to view in the Sessions window, or start a new profiling session. ** Return the first line of /proc/stat or null if failed. CPU Analysis using Memory Profiler Android Profiler displays the currently profiled process and device. Private static final int IDLE_SYS_CPU_COLUMN_INDEX = 5 Private static final int FIRST_SYS_CPU_COLUMN_INDEX = 2 not preserving blanks or compute an offset and add it to the indexes 1 and 4. A better way to deal with this problem may be to use a split method If your file contains only one space then use index 1 and 4 instead of 2 and 5. The indexes defined below are coping with the double space situation. column should have been 4 and the first column with data should have index 1. two spaces between the 'cpu' of the first column and the value of it was observed that on most present devices there are actually Warning: there appears to be an issue with the column index with android linux: * _printLine(mOutput, '' + pid, Float.toString(cpu)) * cpu = linuxUtils.getProcessCpuUsage(pidStat1, pidStat2, cpu2 - cpu1) * long cpu2 = linuxUtils.getSystemUptime(toks) * long cpu1 = linuxUtils.getSystemUptime(toks) * _printLine(mOutput, 'total', Float.toString(cpu)) * float cpu = linuxUtils.getSystemCpuUsage(cpuStat1, cpuStat2) * String pidStat2 = linuxUtils.readProcessStat(pid) * String cpuStat2 = linuxUtils.readSystemStat() * String pidStat1 = linuxUtils.readProcessStat(pid) * String cpuStat1 = linuxUtils.readSystemStat() * LinuxUtils linuxUtils = new LinuxUtils() * A typical use is to assign a thread to CPU monitoring: * Utilities available only on Linux Operating System. The code of this class is written in pure Java. One of the best ways to both monitor and help improve your app’s stability is with a crash reporting tool.Based on the previous answers and personnal experience, here is the code I use to monitor CPU use. The industry standards for crash-free rates to target are:Ĭrash-free users > 99 % Crash-free sessions > 99.9 % You can click on this block to access further details, as shown. Android performance monitoring benchmarks and how to meet them App stabilityĪpp stability is measured in crashes per session or user. The first block (PC Monitoring) tells you the CPUs status, which shows the load, temperature, clock speed, and cooler fan speed.
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