java 在 Linux 系统上增加堆大小
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Increasing Heap size on Linux system
提问by Indrakaran
I work on linux machine and I'd like to set min heap size and also want to increase the max heap size for Java. The RAM is 4GB and the current Max Heap Size is 1GB. Can you please guide me up to what value can I increase the max heap and also what min heap size I need to set for the above configuration.
我在 linux 机器上工作，我想设置最小堆大小，还想增加 Java 的最大堆大小。RAM 为 4GB，当前最大堆大小为 1GB。您能否指导我增加最大堆的值以及我需要为上述配置设置的最小堆大小。
回答by Rudzianko?
Java Heap SizePlace to store objects created by your Java application, this is where Garbage Collection takes place, the memory used by your Java application. For a heavy Java process, insufficient Heap size will cause the popular java.lang.OutOfMemoryError: Java heap space.
Java 堆大小用于存储 Java 应用程序创建的对象的位置，这是发生垃圾收集的地方，即 Java 应用程序使用的内存。对于繁重的Java进程，Heap size不足会导致流行的java.lang.OutOfMemoryError: Java heap space。
-Xms<size> - Set initial Java heap size
-Xmx<size> - Set maximum Java heap size
$ java -Xms512m -Xmx1024m JavaApp
Suggested Java MemoryBelow is suggested value for a small to medium Java application
建议的 Java 内存以下是中小型 Java 应用程序的建议值
Heap = -Xms512m -Xmx1024m
Source: https://www.mkyong.com/java/find-out-your-java-heap-memory-size/
来源：https: //www.mkyong.com/java/find-out-your-java-heap-memory-size/
回答by user2393256
This should help
这应该有帮助
-Xms<size> set initial Java heap size
-Xmx<size> set maximum Java heap size
-Xss<size> set java thread stack size
java -Xms4g -Xmx4g ClassName
