Top "Jvm-arguments" questions

Command-line options and environment variables that can affect the performance characteristics of the Java Virtual Machine

What does -Xmn jvm option stands for

I tried searching the internet about -Xmn option, without success. Can someone please explain what this stands for and how …

java jvm-arguments
Is JVM ARGS '-Xms1024m -Xmx2048m' still useful in Java 8?

I have a Java 7 application using JVM ARGS: -Xms1024m -Xmx2048m, and it runs pretty well. After I upgrade …

java jvm java-8 jvm-arguments
What is the largest possible heap size with a 64-bit JVM?

The theoretical maximum heap value that can be set with -Xmx in a 32-bit system is of course 2^32 bytes, but …

java jvm 64-bit heap-memory jvm-arguments
Running java with JAVA_OPTS env variable has no effect

In a shell script, I have set the JAVA_OPTS environment variable (to enable remote debugging and increase memory), and …

java shell remote-debugging jvm-arguments
increase the java heap size permanently?

Is there a way that I can set the default heap size for the jvm on my own computer? I …

java size heap jvm-arguments
What does JVM flag CMSClassUnloadingEnabled actually do?

I cannot for the life of me find a definition of what the Java VM flag CMSClassUnloadingEnabled actually does, other …

java jvm classloader jvm-arguments
How can I disable IPv6 stack use for IPv4 IPs on JRE?

As you can see on below screenshots, eclipse and Android SDK Manager (and other Java programs) are trying to connect …

java jvm ipv6 jvm-arguments
Could not initialize class sun.awt.X11GraphicsEnvironment on Solaris

I am running into this error while running my installer on a Solaris machine: Installing... ------------- [==================|==================|==================|==================] [---Invocation of this Java …

java solaris jvm-arguments
Default values for Xmx, Xms, MaxPermSize on non-server-class machines

What are the default values for the following options in Java 6 on a non-server-class machine? -Xmx -XX:MaxPermSize Oracle's documentation …

jvm jvm-arguments
Difference between _JAVA_OPTIONS, JAVA_TOOL_OPTIONS and JAVA_OPTS

I thought it would be great to have a comparison between _JAVA_OPTIONS and JAVA_TOOL_OPTIONS. I have been …

java jvm jvm-arguments