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ubuntujvmjavajvm-hotspot

How to set Java Hotspot Server VM to client mode?

I've read that it's better to use 32 bit JDK on 64 bit Ubuntu so I installed jdk-7u9-linux-i586.tar.gz there with libc6-i386 installed. When I run java -version the following info is printed:

java version "1.7.0_09"
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) Server VM (build 23.5-b02, mixed mode)

Also I've read that Client VM is better than Server VM at development computer. How do I set Hotspot to Client mode?

Solution

  • That may have been true 2 years ago, but 64-bit HotSpot works fine now, in development and in production, and has automatic pointer compression when you don't use a heap larger than around 24 GB.

    As for the JIT mode, you select the server VM with -server (the default on most machines nowadays), and the client VM with -client.