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In the video, I explained how optimistic locking can be used as an alternative to pessimistic locking in multi-threaded programs to improve performance. By utilizing the compare and swap semantic, optimistic locking allows one thread to succeed while another fails, reducing contention and improving throughput. I demonstrated the implementation of optimistic locking using a simple C code example and discussed its advantages and disadvantages. Leveraging the underlying CPU architecture for atomic operations is key to efficient optimistic locking. Overall, understanding and implementing optimistic locking can significantly enhance system performance.
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