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System.currentTimeMillis() is long? If I can access it, it will directly solve my problem.
How long is too long? It might not just be the computer speed, it might be the algorithm you are using to calculate the path.(I need some timing marks while searching for completed walk, some uncrossing knight tour of the board, and it's taking a loooong time. In fact it is taking too much time for what I originally intended to do. I need much faster computer...)