Timing our code is important for several reasons:
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Performance optimization: Timing our code helps us identify which parts of our code are taking the most time to execute. This information can be used to optimize the performance of our code by identifying and improving the performance-critical parts of the code.
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Comparison of algorithms: Timing our code allows us to compare the performance of different algorithms for the same task. This can help us choose the most efficient algorithm for our particular use case.
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Benchmarking: Timing our code is important when we are benchmarking our code against a set of performance requirements or against other implementations of the same algorithm. In these cases, we need to ensure that our code meets the performance requirements or performs at least as well as other implementations.
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Debugging: Timing our code can be useful in debugging performance issues. If we notice a performance problem, we can use timing to narrow down the part of the code that is causing the problem and investigate further.
In summary, timing our code is a useful tool for performance optimization, algorithm comparison, benchmarking, and debugging. By identifying the performance-critical parts of our code and optimizing them, we can improve the overall performance of our code and make it run faster and more efficiently.