Micro Benchmarking C++, C#, and Java

摘要

Generally speaking, benchmarking is the process of comparing two or more systems to determine which is more efficient or provides better performance, with the ultimate goal of making improvements to one or more of the systems being measured. It's no surprise that few processes in software development are more controversial than benchmarking, as tests are often tweaked to make one product appear to be better than it actually is, or to make it look better than its competitors. In addition, some benchmarks are simply meaningless or irrelevant in what they measure and how they apply to the system under scrutiny. Clearly, for a benchmark to have any value, you need to understand what is actually being measured—and under what conditions.