Get Into the Performance Mind-set
Ruby optimization is more about rethinking what the code does and less about finding bottlenecks with specialized tools. The major skill to learn is rather the right way of thinking about performance. This is what I call the Ruby Performance Mind-set.
How do you get into this mind-set? Let me give you a hint. When you write code, remember that memory consumption and garbage collection are, most likely, why Ruby is slow, and constantly ask yourself these three questions:
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Is Ruby the right tool to solve my problem?
Ruby is a general-purpose programming language, but that doesn’t mean you should use it to solve all your problems. There are things that Ruby is not so good at. The prime example is large dataset ...
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