Hi Pete,
peter royal wrote:
On Apr 21, 2006, at 10:16 AM, Michael Bauroth wrote:
just a short question. In your tutorial you describe a combination of
filters and ThreadPool for CPU intensive jobs. When I want to use
time consuming SQL operations, would it be better to locate them in
the filter / decoder part before the ThreadPoolFilter or is it equal
to handle them in the IoSession.messageReceived method (don't matter)?
You want to do them after the ThreadPoolFilter. That way they will
occur on separate threads, and not block the thread that reads from the
nio Selector.
I'd say the general "recommended" way would be:
Processor -> ThreadPoolFilter -> {custom filters} ->
ProtocolDecoderFilter -> {custom filters} -> IoHandler
.. Just do everything that could take a non-trivial amount of time
after the ThreadPoolFilter :)
-pete
In the actual tutorial I've found the following scheme:
Acceptor (Processor) -> ThreadPoolFilter (now implemented in processor
by default as BufferPool) -> CPU int. job -> ThreadPoolFilter -> IoHandler
So can (should) I forget this scheme, especially the second
ThreadPoolFilter? :)
Regards
Michael
