> Ok, now I looked more at the CPU-load results. Much time is actually
> spent marshalling stubs, which is why sending EJBObjects is slow. I
> think I can speed this up by doing some simple things such as
> implementing my own serialization and stuff like that.
I wish Norbert would talk more...
The guy optimized that last week (mail on spyderMQ) and went from 500
messages / second with normal RMI to 8000 messages/second. The key is that
we ALWAYS send the same structure except for the actual payload of the
message (the byte[] inside).
In other words, we can now move the MessageInvocation almost ONLY on
metaData. If we only deserialize the meta data information of the MI we can
move that really fast in the server and definitely out of the invocation
layer. Only the "routing" information (EJB name, type, key, method name
etc) is needed the actual "payload" (args) is not needed. We end up with a
message structure that is always the same and we can greatly speed that up
with custom serialization. Of course the stub sending is the same we can
speed that up greatly.
We can also write JNI serializers ;-) for Linux and windows... but that
would suck I think...
marc
>
> regards,
> Rickard
>
> --
> Rickard �berg
>
> @home: +46 13 177937
> Email: [EMAIL PROTECTED]
> http://www.telkel.com
> http://www.jboss.org
> http://www.dreambean.com
>
>
