Chapter 1. Introduction and Composition
High performance is hard, and it depends on many factors. Best performance should be a constant goal for developers. To achieve it, a developer must know the programming language they use and, more importantly, how the language performs under heavy loads, these being disk, memory, network, and processor usage.
Developers will make the most out of a language if they know its weaknesses. In a perfect world, since every job is different, a developer should look for the best tool for the job. But this is not feasible and a developer wouldn't be able to know every best tool, so they have to look for the second best tool for every job. A developer will excel if they know few tools but master them.
As a metaphor, ...
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