linux kernel - How to get specific information of an Android device from "/proc/cpuinfo" file?

Question

How can I parse /proc/cpuinfo virtual file of my Android tablet to get information of the processor's core and clockspeed? I don’t need all information provided by the above file; just these two bits. Can someone please help?

Answer 1

• It is not clear if you want this information inside your app, or just for your own use.

  you can get this information on with adb:

  adb shell cat /proc/cpuinfo
  

  

• If you want to use this information in your app, create a simple function to return a Map<String,String>, for example,

  public static Map<String, String> getCpuInfoMap() {
      Map<String, String> map = new HashMap<String, String>();
      try {
          Scanner s = new Scanner(new File("/proc/cpuinfo"));
          while (s.hasNextLine()) {
              String[] vals = s.nextLine().split(": ");
              if (vals.length > 1) map.put(vals[0].trim(), vals[1].trim());
          }
      } catch (Exception e) {Log.e("getCpuInfoMap",Log.getStackTraceString(e));}
      return map;
  }
  

  Note, this will not get multiple cpus information, overwrites. Most of the values are similar anyways. or Modify to create List of CpuInfoMaps.

  try,

  Log.d("getCpuInfoMap test", getCpuInfoMap().toString());