September 2024
Intermediate to advanced
440 pages
12h 18m
Spanish
Content preview from Optimizar Java
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Capítulo 11. Técnicas de rendimiento del lenguaje Java
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Hasta ahora, hemos explorado los mecanismos por los que la JVM toma el código escrito por un desarrollador, lo convierte en código de bytes y lo optimiza para convertirlo en código compilado de alto rendimiento.
Sería maravilloso que todas las aplicaciones Java estuvieran compuestas por código prístino de la máxima calidad, diseñado teniendo en cuenta el rendimiento. Sin embargo, la realidad suele ser muy distinta. A pesar de ello, en muchos casos la JVM puede tomar código subóptimo y hacerlo funcionar razonablemente bien, un testimonio de la potencia y robustez del entorno.
Incluso las aplicaciones que tienen una base de código demencial y son difíciles de mantener, a menudo se pueden hacer funcionar adecuadamente en producción. Por supuesto, nadie quiere mantener o modificar este tipo de aplicaciones. Entonces, ¿qué le queda al desarrollador por considerar cuando este tipo de base de código necesita ser ajustada para mejorar el rendimiento?
Después de los factores externos de la aplicación, como la conectividad de red, la E/S y las bases de datos, uno de los mayores cuellos de botella potenciales para el rendimiento es el diseño del código. El diseño es una parte increíblemente difícil de acertar, y ningún diseño es nunca perfecto.
Nota
Optimizar Java es complicado, y en el Capítulo 13 veremos cómo las herramientas ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.