应用程序在被 JVM 终止之前可以生成多少线程 [英] How many threads may an application generate before beeing terminated by the JVM

问题描述

问:

1) 在多线程应用程序中，一个应用程序可以产生多少线程是有限制的.

1) In a multi-threading application is there a limit to how many threads an application may spawn.

2)如果存在这样的限制，JVM 是否会终止应用程序以及出现什么错误代码.

2)If such a limit exists, does the JVM terminate the application and with what error code.

编辑

3)如果一个应用程序以非常快的速度生成，JVM会检测到它是一个粗糙"的应用程序

3)If an application spawns in very rapid sucsession, would the JVM detect that as a "rough" application

提前致谢

推荐答案

JVM 规范没有规定限制.操作系统可能(可能)像往常一样限制每个进程等.每个线程还将分配一个堆栈等，因此可能需要大量内存，因此取决于计算机首先达到的限制..

No limit specified by the JVM specification. The OS may (probably) limit it as usual per process etc though. Each thread will also allocate a stack etc so a lot of memory could be needed, so depending on the computer what limit is hit first..

请注意:不过，过多的线程通常效率低下.您的程序可以/应该以另一种方式更好地扩展.根据需要使用线程池(执行程序服务)、异步 I/O、fork/join 等.

Please note: Too many threads are usually inefficient though. Your program could/should probably scale better in another way. Using Thread pools (executor service), asynchronous I/O, fork/join etc depending on your needs.

另见:

是否有硬限制Java 中的多个线程?

一个 Java VM 可以支持多少个线程?

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