From: Robert Greig <robert.j.greig_at_gmail.com>
Date: Wed, 8 Aug 2007 20:03:38 +0100

On 08/08/07, Fay Zheng <fzheng1998_at_gmail.com> wrote:

> Total CPU usage for all 4 instances are 44.59% (with NIO engine)
>
> CPU usage is 24.76% (without Nio engine)

You may benefit from enabling epoll support. To do that you will need
to update to 1.5 update 10 I think and set a system property.

You can read about the details here: http://blogs.sun.com/alanb/entry/epoll

RG