Java Code Examples for android.os.Debug#getMemoryInfo()

/**
 * 获取当前内存信息
 */
private MemoryInfo getMemoryInfo() {
    // 注意：这里是耗时和耗CPU的操作，一定要谨慎调用
    Debug.MemoryInfo info = new Debug.MemoryInfo();
    Debug.getMemoryInfo(info);
    if (DEBUG) {
        LogX.d(TAG, SUB_TAG,
                "当前进程:" + ProcessUtils.getCurrentProcessName()
                        + "，内存getTotalPss:" + info.getTotalPss()
                        + " nativeSize:" + info.nativePss
                        + " dalvikPss:" + info.dalvikPss
                        + " otherPss:" + info.otherPss

        );
    }
    return new MemoryInfo(ProcessUtils.getCurrentProcessName(), info.getTotalPss(), info.dalvikPss, info.nativePss, info.otherPss);
}
 

public static void recordMemory() {
    Runtime runtime = Runtime.getRuntime();
    float dalvikMem = (float) ((runtime.totalMemory() - runtime.freeMemory()) * 1.0 / TrojanConstants.FORMAT_MB);
    float nativeMem = (float) (Debug.getNativeHeapAllocatedSize() * 1.0 / TrojanConstants.FORMAT_MB);

    List<String> msgList = new LinkedList<>();
    msgList.add(String.valueOf(decimalFormat.format(dalvikMem + nativeMem)) + TrojanConstants.MB);
    msgList.add(String.valueOf(decimalFormat.format(dalvikMem)) + TrojanConstants.MB);
    msgList.add(String.valueOf(decimalFormat.format(nativeMem)) + TrojanConstants.MB);
    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
            Debug.getMemoryInfo(memoryInfo);
            float stackSize = Float.parseFloat(memoryInfo.getMemoryStat("summary.stack"));
            msgList.add(String.valueOf(decimalFormat.format(stackSize / TrojanConstants.FORMAT_KB)) + TrojanConstants.MB);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    Trojan.log(LogConstants.MEMORY_TAG, msgList);
}
 

/**
 * 打印当前内存占用日志，方便外界诊断。注意，这会显著消耗性能（约50ms左右）
 *
 * @param tag Used to identify the source of a log message.  It usually identifies
 *            the class or activity where the log call occurs.
 * @param msg The message you would like logged.
 */
public static int printMemoryStatus(String tag, String msg) {
    if (RePluginInternal.FOR_DEV) {
        Debug.MemoryInfo mi = new Debug.MemoryInfo();
        Debug.getMemoryInfo(mi);

        String mit = "desc=, memory_v_0_0_1, process=, " + IPC.getCurrentProcessName() +
                ", totalPss=, " + mi.getTotalPss() +
                ", dalvikPss=, " + mi.dalvikPss +
                ", nativeSize=, " + mi.nativePss +
                ", otherPss=, " + mi.otherPss + ", ";

        return Log.i(tag + "-MEMORY", mit + msg);
    }
    return -1;
}
 

/**
 * 打印当前内存占用日志，方便外界诊断。注意，这会显著消耗性能（约50ms左右）
 *
 * @param tag Used to identify the source of a log message.  It usually identifies
 *            the class or activity where the log call occurs.
 * @param msg The message you would like logged.
 */
public static int printMemoryStatus(String tag, String msg) {
    if (RePluginInternal.FOR_DEV) {
        Debug.MemoryInfo mi = new Debug.MemoryInfo();
        Debug.getMemoryInfo(mi);

        String mit = "desc=, memory_v_0_0_1, process=, " + IPC.getCurrentProcessName() +
                ", totalPss=, " + mi.getTotalPss() +
                ", dalvikPss=, " + mi.dalvikPss +
                ", nativeSize=, " + mi.nativePss +
                ", otherPss=, " + mi.otherPss + ", ";

        return Log.i(tag + "-MEMORY", mit + msg);
    }
    return -1;
}
 

@Override
public void run() {
    while(mRunning) {
        mCpuStats.parseTopResults();

        Debug.getMemoryInfo(mi);

        if(mHandler != null) {
            mQosObject.cpuUsage = mCpuStats.getProcessCpuUsage();
            mQosObject.pss = mi.getTotalPss();
            mQosObject.vss = mi.getTotalPrivateDirty();
            mHandler.obtainMessage(VideoPlayerActivity.UPDATE_QOSMESS, mQosObject).sendToTarget();
        }
        try {
            sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}
 

/** Grabs the post-snapshot. */
synchronized void after() {
  mAfterTimestamp = SystemClock.elapsedRealtime();
  Debug.stopAllocCounting();
  Debug.getMemoryInfo(mMemoryInfoAfter);

  mAllocCount = Debug.getGlobalAllocCount();
  mAllocSize = Debug.getGlobalAllocSize();
  mFreeCount = Debug.getGlobalFreedCount();
  mFreeSize = Debug.getGlobalFreedSize();

  if (mState != State.BEFORE_CALLED) {
    throw new IllegalStateException("unexpected state");
  }
  mState = State.AFTER_CALLED;
}
 

private float getMemoryData() {
    float mem = 0.0F;
    try {
        Debug.MemoryInfo memInfo = null;
        //28 为Android P
        if (Build.VERSION.SDK_INT > 28) {
            // 统计进程的内存信息 totalPss
            memInfo = new Debug.MemoryInfo();
            Debug.getMemoryInfo(memInfo);
        } else {
            //As of Android Q, for regular apps this method will only return information about the memory info for the processes running as the caller's uid;
            // no other process memory info is available and will be zero. Also of Android Q the sample rate allowed by this API is significantly limited, if called faster the limit you will receive the same data as the previous call.

            Debug.MemoryInfo[] memInfos = mActivityManager.getProcessMemoryInfo(new int[]{Process.myPid()});
            if (memInfos != null && memInfos.length > 0) {
                memInfo = memInfos[0];
            }
        }

        int totalPss = memInfo.getTotalPss();
        if (totalPss >= 0) {
            // Mem in MB
            mem = totalPss / 1024.0F;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return mem;
}
 

public static int getMemoryInfo() {
        Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
        Debug.getMemoryInfo(memoryInfo);
//        return memoryInfo.getTotalPss()/1000;
        return memoryInfo.nativePss/1000;

    }
 

public static MemoryInfo getMemoryInfo() {
	/* Lazy allocation. */
	if (SystemUtils.sMemoryInfo == null) {
		SystemUtils.sMemoryInfo = new MemoryInfo();
	}

	Debug.getMemoryInfo(SystemUtils.sMemoryInfo);

	return SystemUtils.sMemoryInfo;
}
 

/** Grabs the pre-snapshot. Forces a {@link System#gc()} before collecting stats. */
synchronized void before() {
  if (mState != State.INIT) {
    throw new IllegalStateException("unexpected state");
  }

  mState = State.BEFORE_CALLED;
  System.gc();
  Debug.getMemoryInfo(mMemoryInfoBefore);
  Debug.startAllocCounting();
  mBeforeTimestamp = SystemClock.elapsedRealtime();
}
 

public void getMemoryInfo(Debug.MemoryInfo outInfo) {
    Debug.getMemoryInfo(outInfo);
}
 

public void getMemoryInfo(Debug.MemoryInfo outInfo) {
    Debug.getMemoryInfo(outInfo);
}
 

@Override
public long getPss() {
    Debug.MemoryInfo mi = new Debug.MemoryInfo();
    Debug.getMemoryInfo(mi);
    return mi.getTotalPss();
}
 

public static int getNativeMemoryInfo() {
    Debug.MemoryInfo memoryInfo = new Debug.MemoryInfo();
    Debug.getMemoryInfo(memoryInfo);


    return memoryInfo.nativePss;
}