On which platforms? And are we talking about the same thing? Are you saying that if I do
export CATALINA_BASE=/site1; startup.sh export CATALINA_BASE=/site2; startup.sh export CATALINA_BASE=/site3; startup.sh ... export CATALINA_BASE=/siteN; startup.sh service james start
that the N separate sets of Tomcat processes and James are sharing memory
images for all common class code? Do you know when/where that was
introduced?
The separate processes would share memory including a part of the actual JVM code as well as much of the Java library classes if (and I'm pretty sure only if) you are running on OS X. Apple has provided the technology to do this back to Sun and it will likely appear in a future version of Java. At one stage Apple was suggesting it would likely appear in Java 1.5 but it seems to have slipped from there.
--- Noel
Adrian Sutton.
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