Linux中如何确定进程内存限制? [英] How to determine the process memory limit in Linux?

问题描述

我一直在网上搜索，想知道一个 java 进程可以在 linux (red-hat) 机器上占用多少内存.(我不是在谈论堆；而是 Java Process 占用的全部内存量)

I have been scouring the internet to find out how much memory a java process can take on a linux (red-hat) machine. ( I am not talking about heap; rather, the entire amount of memory taken up by the java Process)

我无权在该机器上执行任何操作.所以我不能简单地执行一个消耗内存的程序，直到出现内存不足的情况.

I don't have permission to execute anything on that machine. So I can't simply execute a program that consumes memory until Out-Of-Memory condition.

但是，我确实有权限检查配置文件等(例如:我尝试执行 cat/proc/meminfo，但我无法理解它；它的结果似乎都不代表我的参数想了解一下).

However, I do have permission to check config files, etc. ( for example: I tried to execute cat /proc/meminfo, but I can't understand it; it appears that none of its results stand for the parameter I want to know about).

我在一台单独的 red hat 机器上尝试了一个 java 程序——我确实有权在这台机器上执行程序——并且我能够看到 java 程序增长到大约 3GB.

I have tried out a java program on a separate red hat machine - on which I do have permission to execute programs - and I was able to see java program grow up to around 3GB.

有什么方法可以找出一个进程可以获得多少内存?

Is there some way I can find out how much memory a process can get ?

推荐答案

ulimit 是您的朋友.Java 进程与其他进程没有什么不同.但是如果你连 ulimit -a 都不能运行，就很难回答你的问题.

ulimit is your friend. Java processes are no different than any others. But if you can't even run ulimit -a, it's hard to answer your question.

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