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Kyle ...Performance Issues with WAS 3.5.4

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Could anyone provide me some details about the environment.
I have websphere 3.5.4 on Sun Solaris machine(Single node 400 MHz processor Sparc)
There are total of five instances of Websphere distributed under two domains.(3 in one and two in another)
Each App server has around 90 beans out of which 20 are entity beans.
Apart from Websphere, the repository and application database(for one websphere app server)is also on the same machine.(ie Oracle)
IBM HTTP Server is also on sun solaris machine.
I am facing some serious performance issues. Need some advice as to what should be best possible environment and that if there are any changes in hardware/tuning parameters that are to be done???
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Pardon me, but good grief! What do you expect this little machine to do?!!! You are running SEVEN JVM's (5 app servers and 2 admin servers) an Oracle database and the HTTP server on one poor little single-processor machine!??
Of course you'll have performance problems -- I mean for heaven's sake, each JVM has a heap that's probably taking up at least 128 if not 256 MB. Do the math! 7*256=1.75GB of main memory even before you add the requirements for the Database, HTTP Server and OS. You probably started swapping long ago...
My advice to you is buy more hardware! Also, go read the WebSphere redbook on performance tuning at ( You'll find out that for a system like what you're running I'd recommend at least FOUR machines (a DB server, an HTTP Server and two app servers) of the type you mention.
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