Re: [jboss-dev] Further profling: Where should I focus?
On 01/04/2010 07:18 AM, Ales Justin wrote:
> Its all AOP,
This one is taken care by Kabir.
> Classloading (package names),
Perhaps Bill you could have a go at this?
Basically the solution is trivial, but it's an integration pita.
What we need is an explicit packages export; aka jboss-classloading.xml
with capabilities.
Why packages? Why not export/import by module? Also, the
jboss-classloading.xml is only a part of a performant solution. Before we
consider going to a fully modularized design, we also need to consider a
way to implement an O(1) module loading system, so that modules are only
loaded on-demand and any module which is not used is never loaded.
Otherwise, we'll never be able to scale a "modularized" AS.
I tried to catalog requirements for modularization here:
http://www.jboss.org/community/wiki/JBossAS6ModularizationRequirements
If the website ever comes back up, please have a look.
This is already on our TAG todo list -- precise API exposure, OSGi
like.
Perhaps for initial fix, we could add a simple ant/mvn/build-magic
task
that would generate an exposure of all packages via capabilities?
(what we actually do with that PackagesVisitor)
This isn't going to do anything useful for us other than some classloading
obscurity - modularization is about more than that. Let's make sure we
address the whole picture before going down this route.
- DML