Get CPU information

  

package app.test;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.Context;
import android.telephony.TelephonyManager;
import android.util.DisplayMetrics;
import android.util.Log;

class CMDExecute {

  public synchronized String run(String[] cmd, String workdirectory)
      throws IOException {
    String result = "";

    try {
      ProcessBuilder builder = new ProcessBuilder(cmd);
      // set working directory
      if (workdirectory != null)
        builder.directory(new File(workdirectory));
      builder.redirectErrorStream(true);
      Process process = builder.start();
      InputStream in = process.getInputStream();
      byte[] re = new byte[1024];
      while (in.read(re) != -1) {
        System.out.println(new String(re));
        result = result + new String(re);
      }
      in.close();

    } catch (Exception ex) {
      ex.printStackTrace();
    }
    return result;
  }

}

public class Main {
  private static StringBuffer buffer;

  // cpu info
  public static String fetch_cpu_info() {
    String result = null;
    CMDExecute cmdexe = new CMDExecute();
    try {
      String[] args = { "/system/bin/cat", "/proc/cpuinfo" };
      result = cmdexe.run(args, "/system/bin/");
      Log.i("result", "result=" + result);
    } catch (IOException ex) {
      ex.printStackTrace();
    }
    return result;
  }

}

Get CPU Bogo Mips

  
//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";


  public static float getCPUBogoMips() throws Exception {
    final MatchResult matchResult = SystemUtils.matchSystemFile("/proc/cpuinfo", BOGOMIPS_PATTERN, 1000);

    try {
      if(matchResult.groupCount() > 0) {
        return Float.parseFloat(matchResult.group(1));
      } else {
        throw new Exception();
      }
    } catch (final NumberFormatException e) {
      throw new Exception(e);
    }
  }

  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Get CPU Frequency Current

  
//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";


  /**
   * @return in kiloHertz.
   * @throws SystemUtilsException
   */
  public static int getCPUFrequencyCurrent() throws Exception {
    return SystemUtils.readSystemFileAsInt("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq");
  }

  private static int readSystemFileAsInt(final String pSystemFile) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final String content = readFully(in);
      return Integer.parseInt(content);
    } catch (final Exception e) {
      throw new Exception(e);
    } 
  }
  public static final String readFully(final InputStream pInputStream) throws IOException {
    final StringBuilder sb = new StringBuilder();
    final Scanner sc = new Scanner(pInputStream);
    while(sc.hasNextLine()) {
      sb.append(sc.nextLine());
    }
    return sb.toString();
  }
  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Get CPU Frequency Min

  
//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";


  /**
   * @return in kiloHertz.
   * @throws SystemUtilsException
   */
  public static int getCPUFrequencyMin() throws Exception {
    return SystemUtils.readSystemFileAsInt("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq");
  }


  private static int readSystemFileAsInt(final String pSystemFile) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final String content = readFully(in);
      return Integer.parseInt(content);
    } catch (final Exception e) {
      throw new Exception(e);
    } 
  }
  public static final String readFully(final InputStream pInputStream) throws IOException {
    final StringBuilder sb = new StringBuilder();
    final Scanner sc = new Scanner(pInputStream);
    while(sc.hasNextLine()) {
      sb.append(sc.nextLine());
    }
    return sb.toString();
  }
  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Get CPU Frequency Max

  
//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";



  /**
   * @return in kiloHertz.
   * @throws SystemUtilsException
   */
  public static int getCPUFrequencyMax() throws Exception {
    return SystemUtils.readSystemFileAsInt("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
  }

  private static int readSystemFileAsInt(final String pSystemFile) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final String content = readFully(in);
      return Integer.parseInt(content);
    } catch (final Exception e) {
      throw new Exception(e);
    } 
  }
  public static final String readFully(final InputStream pInputStream) throws IOException {
    final StringBuilder sb = new StringBuilder();
    final Scanner sc = new Scanner(pInputStream);
    while(sc.hasNextLine()) {
      sb.append(sc.nextLine());
    }
    return sb.toString();
  }
  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Get CPU Frequency Min Scaling

  

//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";



  /**
   * @return in kiloHertz.
   * @throws SystemUtilsException
   */
  public static int getCPUFrequencyMinScaling() throws Exception {
    return SystemUtils.readSystemFileAsInt("/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq");
  }

  private static int readSystemFileAsInt(final String pSystemFile) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final String content = readFully(in);
      return Integer.parseInt(content);
    } catch (final Exception e) {
      throw new Exception(e);
    } 
  }
  public static final String readFully(final InputStream pInputStream) throws IOException {
    final StringBuilder sb = new StringBuilder();
    final Scanner sc = new Scanner(pInputStream);
    while(sc.hasNextLine()) {
      sb.append(sc.nextLine());
    }
    return sb.toString();
  }
  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Get CPU Frequency Max Scaling

  
//package org.anddev.andengine.util;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.Scanner;
import java.util.regex.MatchResult;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;

/**
 * (c) 2010 Nicolas Gramlich 
 * (c) 2011 Zynga Inc.
 * 
 * @author Nicolas Gramlich
 * @since 15:50:31 - 14.07.2010
 */
class SystemUtils {
  private static final String BOGOMIPS_PATTERN = "BogoMIPS[\\s]*:[\\s]*(\\d+\\.\\d+)[\\s]*\n";
  private static final String MEMTOTAL_PATTERN = "MemTotal[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";
  private static final String MEMFREE_PATTERN = "MemFree[\\s]*:[\\s]*(\\d+)[\\s]*kB\n";


  /**
   * @return in kiloHertz.
   * @throws SystemUtilsException
   */
  public static int getCPUFrequencyMaxScaling() throws Exception {
    return SystemUtils.readSystemFileAsInt("/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq");
  }


  private static int readSystemFileAsInt(final String pSystemFile) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final String content = readFully(in);
      return Integer.parseInt(content);
    } catch (final Exception e) {
      throw new Exception(e);
    } 
  }
  public static final String readFully(final InputStream pInputStream) throws IOException {
    final StringBuilder sb = new StringBuilder();
    final Scanner sc = new Scanner(pInputStream);
    while(sc.hasNextLine()) {
      sb.append(sc.nextLine());
    }
    return sb.toString();
  }
  private static MatchResult matchSystemFile(final String pSystemFile, final String pPattern, final int pHorizon) throws Exception {
    InputStream in = null;
    try {
      final Process process = new ProcessBuilder(new String[] { "/system/bin/cat", pSystemFile }).start();

      in = process.getInputStream();
      final Scanner scanner = new Scanner(in);

      final boolean matchFound = scanner.findWithinHorizon(pPattern, pHorizon) != null;
      if(matchFound) {
        return scanner.match();
      } else {
        throw new Exception();
      }
    } catch (final IOException e) {
      throw new Exception(e);
    } 
      
  }
}

Android Tutorial - Hardware : CPU