Example usage for android.os Debug getNativeHeapFreeSize

Introduction

In this page you can find the example usage for android.os Debug getNativeHeapFreeSize.

Prototype

public static native long getNativeHeapFreeSize();

Source Link

Document

Returns the amount of free memory in the native heap.

Usage

From source file:com.midisheetmusicmemo.ChooseSongActivity.java

public static void logHeap() {
    Double allocated = new Double(Debug.getNativeHeapAllocatedSize()) / new Double((1048576));
    Double available = new Double(Debug.getNativeHeapSize()) / 1048576.0f;
    Double free = new Double(Debug.getNativeHeapFreeSize()) / 1048576.0f;
    DecimalFormat df = new DecimalFormat();
    df.setMaximumFractionDigits(2);/*from   ww w . j  a v  a2 s. c  om*/
    df.setMinimumFractionDigits(2);

    Log.d("blah", "debug. =================================");
    Log.d("blah", "debug.heap native: allocated " + df.format(allocated) + "MB of " + df.format(available)
            + "MB (" + df.format(free) + "MB free)");
    Log.d("blah",
            "debug.memory: allocated: " + df.format(new Double(Runtime.getRuntime().totalMemory() / 1048576))
                    + "MB of " + df.format(new Double(Runtime.getRuntime().maxMemory() / 1048576)) + "MB ("
                    + df.format(new Double(Runtime.getRuntime().freeMemory() / 1048576)) + "MB free)");
    System.gc();
    System.gc();
}

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From source file:com.zoffcc.applications.zanavi.Navit.java

public static String logHeap(Class clazz) {
    Double allocated = Double.valueOf(Debug.getNativeHeapAllocatedSize()) / Double.valueOf((1048576));
    Double sum_size = Double.valueOf(Debug.getNativeHeapSize() / Double.valueOf(1048576.0));
    Double free = Double.valueOf(Debug.getNativeHeapFreeSize() / Double.valueOf(1048576.0));
    DecimalFormat df = new DecimalFormat();
    df.setMaximumFractionDigits(2);/*from  w ww  . ja va  2 s.  c  o  m*/
    df.setMinimumFractionDigits(2);

    // Log.d("Navit", "MemMem:DEBUG: =================================");
    Log.d("Navit",
            "MemMem:DEBUG:heap native: allc " + df.format(allocated) + "MB sum=" + df.format(sum_size) + "MB ("
                    + df.format(free) + "MB free) in ["
                    + clazz.getName().replaceAll("com.zoffcc.applications.zanavi.", "") + "]");
    Log.d("Navit",
            "MemMem:DEBUG:java memory: allc: "
                    + df.format(Double.valueOf(Runtime.getRuntime().totalMemory() / 1048576)) + "MB sum="
                    + df.format(Double.valueOf(Runtime.getRuntime().maxMemory() / 1048576)) + "MB ("
                    + df.format(Double.valueOf(Runtime.getRuntime().freeMemory() / 1048576)) + "MB free)");

    calcAvailableMemory();

    String mem_type = "NATIVE";
    try {
        if (android.os.Build.VERSION.SDK_INT >= 11) {
            mem_type = "JAVA";
        }
    } catch (Exception e) {
    }
    return ("" + df.format(allocated) + "/" + df.format(sum_size) + "(" + df.format(free) + ")" + ":"
            + df.format(Double.valueOf(Runtime.getRuntime().totalMemory() / 1048576)) + "/"
            + df.format(Double.valueOf(Runtime.getRuntime().maxMemory() / 1048576)) + "("
            + df.format(Double.valueOf(Runtime.getRuntime().freeMemory() / 1048576)) + ") " + mem_type);
}

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From source file:com.zoffcc.applications.zanavi.Navit.java

public static String logHeap_for_batch(Class clazz) {
    try {/*  w  w w .  j a  va2 s  .  c om*/
        Double allocated = Double.valueOf(Debug.getNativeHeapAllocatedSize()) / Double.valueOf((1048576));
        Double sum_size = Double.valueOf(Debug.getNativeHeapSize() / Double.valueOf(1048576.0));
        Double free = Double.valueOf(Debug.getNativeHeapFreeSize() / Double.valueOf(1048576.0));
        DecimalFormat df = new DecimalFormat();
        df.setMaximumFractionDigits(2);
        df.setMinimumFractionDigits(2);

        // Log.d("Navit", "MemMem:DEBUG: =================================");
        Log.d("Navit",
                "MemMem:DEBUG:heap native: allc " + df.format(allocated) + "MB sum=" + df.format(sum_size)
                        + "MB (" + df.format(free) + "MB free) in ["
                        + clazz.getName().replaceAll("com.zoffcc.applications.zanavi.", "") + "]");
        Log.d("Navit",
                "MemMem:DEBUG:java memory: allc: "
                        + df.format(Double.valueOf(Runtime.getRuntime().totalMemory() / 1048576)) + "MB sum="
                        + df.format(Double.valueOf(Runtime.getRuntime().maxMemory() / 1048576)) + "MB ("
                        + df.format(Double.valueOf(Runtime.getRuntime().freeMemory() / 1048576)) + "MB free)");

        // calcAvailableMemory();

        String mem_type = "NATIVE";
        try {
            if (android.os.Build.VERSION.SDK_INT >= 11) {
                mem_type = "JAVA";
            }
        } catch (Exception e) {
        }
        // return ("" + df.format(allocated) + "/" + df.format(sum_size) + "(" + df.format(free) + ")" + ":" + df.format(Double.valueOf(Runtime.getRuntime().totalMemory() / 1048576)) + "/" + df.format(Double.valueOf(Runtime.getRuntime().maxMemory() / 1048576)) + "(" + df.format(Double.valueOf(Runtime.getRuntime().freeMemory() / 1048576)) + ") " + mem_type);
        return ("==MEM==:" + "J:" + (Double.valueOf(Runtime.getRuntime().totalMemory() / 1048576)) + ":"
                + (Double.valueOf(Runtime.getRuntime().maxMemory() / 1048576)) + ",N:" + allocated + ":"
                + sum_size);
    } catch (Exception e2) {
        return ("==MEM==:ERROR");
    }
}

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