...
    private Paint mPaint;
    private Paint mPaint2;
    private Rect mRect;
    private StringBuilder message = new StringBuilder();
    
    private long mCurTime;
    private long mOldTime = 0;
    private long mFPS = 0;
    
    ...
    private long getCurTime()
    {
    	Date date = new Date();
    	return date.getTime();
    }
    
    public void setCurTime()
    {
    	mCurTime = getCurTime();
    }
    
    public void setOldTime()
    {
    	mOldTime = getCurTime();
    }
    
    @Override
    public void run()
    {
        while (mRunning)
        {
            Canvas canvas = null;
            try
            {
                // подготовка Canvas-а
                canvas = mSurfaceHolder.lockCanvas();
                synchronized (mSurfaceHolder)
                {
                	// Подсчет FPS
                	mFPS++;
                	setCurTime();
                	if (mCurTime - mOldTime >= 1000)
                	{
                		message.setLength(0);
                		message.append(mFPS);
                		mFPS = 0;
                		setOldTime();
                	}
                    // собственно рисование
                    canvas.drawRect(mRect, mPaint2);
                    canvas.drawText(message.toString(), 30, 30, mPaint);
                }
            }
            catch (Exception e) { }
            finally
            {
                if (canvas != null)
                {
                    mSurfaceHolder.unlockCanvasAndPost(canvas);
                }
            }
        }
    }