> In general, if your requests are CPU bound, adding a second JVM on the same
> server is not going to help ... you are just adding OS overhead to switch back
> and forth between the JVM processes. It would help, however, if you are
> running on a multiple CPU server, and have spare CPU time capacity on a second
> (or third ...) processor. All of this assumes, of course, that you have
> enough memory to keep everything important resident.
If you are running a good native thread VM, such as the new Sun JDK 1.2
Performance Release (Exact VM) on Solaris, then you probably don't even
want to have multiple VM instances on a multi processor machine. I
haven't studied the effects of each with the new VMs, so this is just an
educated guess.
.duncan
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