September 2024
Intermediate to advanced
440 pages
12h 18m
Spanish
Content preview from Optimizar Java
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Capítulo 1. Definición de optimización y rendimiento
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Optimizar el rendimiento de Java (o de cualquier otro tipo de código) suele considerarse un Arte Oscuro.Existe una mística en torno al análisis del rendimiento: suele verse como un arte practicado por el "hacker solitario, torturado y de pensamiento profundo" (uno de los tropos favoritos de Hollywood sobre los ordenadores y las personas que los manejan). La imagen es la de un individuo solitario que puede ver profundamente en un sistema y dar con una solución mágica que hace que el sistema funcione más rápido.
Esta imagen suele ir unida a la desafortunada (pero demasiado común) situación en la que el rendimiento es una preocupación de segunda clase de los equipos de software, lo que configura un escenario en el que el análisis sólo se realiza una vez que el sistema ya tiene problemas, por lo que necesita un "héroe" del rendimiento para salvarlo. La realidad, sin embargo, es un poco diferente.
La verdad es que el análisis del rendimiento es una extraña mezcla de empirismo duro y psicología humana blanda. Lo que importa es, al mismo tiempo, las cifras absolutas de las métricas observables y cómo se sienten al respecto los usuarios finales y las partes interesadas. La resolución de esta aparente paradoja es el tema del resto de este libro.
Rendimiento de Java: el camino equivocado
Durante muchos años, uno de los ...
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