Some question for Sun Java System

Dear all:
I use Sun Java System We Server 7.0 for my project.
But I have some question on SJSWS 7.0
My server runtime information
1. OS is RedHat Enterprise 3
2. memory: 2G
3. SJSWS version: 7.0 preview 3
My questions
Q1. The speed that download image is slower than the speed that run JSP page . The image's size to smaller than 5 KB. Is it possible to speed up download image
Q2. My machine has 2GB memory, The system use swap area always. I think it isn't enough of SJSWS 7.0. How much memory size that SJSWS 7.0?
Many thank for everybody

first off, please try the Update 1 release in stead of technology preview releases: http://www.sun.com/download/products.xml?id=467713d6
Q1> So I want to ask it is possible to display image and text at the same time like use Tomcat ?
there is nothing in the server end (whether it's Tomcat or any other web server) that affects how the content is displayed on the browser.
Q2>I detect The ram was used over 800M~1G by SJSWS7. My website has 80~150 user in workinghour
Are you seeing Web Server process measuring so much memory?
Q3> Is it possible that the admin server use SJSWS7U1 and some or all of node use SJSWS preview 3, because the server is running on line, I can't stop them for update server
No - you want to switch to U1 anyway, since it's a released version (and is absolutely FREE for production use).

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