Sun GlassFish Enterprise Server v2.1.1 Performance Tuning Guide

Tuning Thread Pools (Unix /Linux only)

Configure thread pool settings through the Admin Console at Configurations > config-name > Thread Pools.

Since threads on Unix/Linux are always operating system (OS)-scheduled, as opposed to user-scheduled, Unix/Linux users do not need to use native thread pools. Therefore, this option is not offered in a Unix/Linux user interface. However, it is possible to edit the OS-scheduled thread pools and add new thread pools, if needed, using the Admin Console.