No Cycle Left Behind

No Cycle Left Behind
performance-memes, optimization-memes, benchmarking-memes, low-level-memes, assembly-memes | ProgrammerHumor.io

Regular developers measure performance in milliseconds or microseconds because that's what modern tools show them. Meanwhile, the true optimization psychopaths are counting individual CPU clock cycles like it's 1982. They're the ones rewriting entire functions in assembly just to save 3 cycles in a loop that runs twice a day. The difference between "fast enough" and "I need to know exactly how many nanoseconds each instruction takes."

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