public long avg() {
            long sum = 0;
            for (int i = 0; i < this.slots.length; i++) {
                sum += this.slots[i];
            }
            return sum / this.slots.length;
        }
Gets the system time in nanoseconds.

@return will return the current time in nano's
jme3-lwjgl3/src/main/java/com/jme3/system/lwjgl/Sync.java