Programming Concurrency on the JVM pdf epub mobi txt 电子书下载 2025

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Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an adjunct faculty at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at several international conferences.

出版者:The Pragmatic Bookshelf

作者:[美] Venkat Subramaniam

出品人:

页数:280

译者:

出版时间:2011-6-1

价格:USD 35.00

装帧:Paperback

isbn号码:9781934356760

丛书系列:

图书标签:

java
并发
jvm
concurrency
Java
并行
JVM
编程

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Concurrency on the Java platform has evolved, from the synchronization model of JDK to software transactional memory (STM) and actor-based concurrency. This book is the first to show you all these concurrency styles so you can compare and choose what works best for your applications. You’ll learn the benefits of each of these models, when and how to use them, and what their limitations are.

Through hands-on exercises, you’ll learn how to avoid shared mutable state and how to write good, elegant, explicit synchronization-free programs so you can create easy and safe concurrent applications. The techniques you learn in this book will take you from dreading concurrency to mastering and enjoying it. Best of all, you can work with Java or a JVM language of your choice – Clojure, JRuby, Groovy, or Scala – to reap the growing power of multicore hardware.

If you are a Java programmer, you’d need JDK 1.5 or later and the Akka 1.0 library. In addition, if you program in Scala, Clojure, Groovy or JRuby you’d need the latest version of your preferred language. Groovy programmers will also need GPars.

具体描述

读后感

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有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故而知新下有时间再重新温故...

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作者试图展示各种处理并发的范式，但是每种都讲得不深，给出的例子不超过5个状态的处理。看了这本书我还是很怀疑stm和actor在并发状态很多，流程比较复杂的情况下能否比加锁的方式好用。还有就是用加锁的方式可以封装出一些高级的并发的数据结构，stm和actor在这方面的...

用户评价

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内容不难，代码重复较多，读者最好有一定的Scala基础。Load up your cup if it is low on coffee, you are gonna need extra shot of caffeine.

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作者提出了3个并发模型，shared mutability, isolated mutability, immutability,shared就是我们java里边经常使用的，对于这个模型，可以通过STM提高其并发度，但是STM也有其劣势，比如说在大量的修改面前，会疯狂的消耗cpu，isolated mutability比较好，就是actor模型，但是对于消息通信的actor需要注意粒度的问题，actor必须是粗粒度的，如果是细粒度的话，会导致大量的消息传递，以及上下文切换，导致performance的下降。最后的web resources和参考书目是非常好的阅读知道，可以看一些其他方面的知识来提高对并发的理解和设计。一句话monitor的单核时代已经过去了，拥抱多核时代，拥抱不变试。

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略读，初识jvm脚本语言，熟悉STM、Actor并发模式

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略读，初识jvm脚本语言，熟悉STM、Actor并发模式

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介绍了一些比较新的并发技术，如STM、Actor等，并进行举例