[omniORB] Multithreading mechanism

[Bernard Niset]

You don't need thread pool mechanism to do that, you need a pool of database
connections that's different. In omniORB, and I guess with all Corba ORB,
you have one instance of the servant class accessed by multiple thread, that
would not allow you to manage a pool of connection associated to each
thread.
omniORB is very efficient the way it is, you will find no performance
problems with it. At least, I didn't.

Bernard.

-----Original Message-----
From: owner-omniorb-list@uk.research.att.com
[mailto:owner-omniorb-list@uk.research.att.com]On Behalf Of Yang Lingjia
Sent: mardi 15 aout 2000 11:21
To: Sai-Lai Lo
Cc: omniorb-list@uk.research.att.com
Subject: Re: [omniORB] Multithreading mechanism

Hi,

Should I take it as that OmniOrb doesn't support thread pool mechanism?  :-)

The reason for us to in favor of pool thread mechanism is that  we need to
initialize a pool of database connections at the startup stage of the
system.
As we all know that initialization of database handler takes a long time.
This will reduce the waiting time of the clients and we can reuse the
resources.  In the other words, if we use thread per connection mechanism,
database handler will be released after the client disconnected.  If we use
the
thread pool mechanism, we can reuse the database handler.  Thread pool
mechanism is more efficient compare to thread per connection because it
allows
sharing of threads among clients.



One more point, our clients need to initialize a few request to the server
at
one time.  It will have no problem with pool thread mechanism.  For thread
per
connection, it needs to initialize a connection per request.

For your comments please!

Lingjia

Sai-Lai Lo wrote:

> >>>>> Yang Lingjia writes:
>
> > We are doing some evaluation on OmniOrb.  I read from some documentation
> > on the web that OmniOrb only supports thread per connection.  Is it
> > true?  How much effort do I need to implement a thread pool mechanism?
>
> I'm curious why you need a thread pool mechanism?
>
> --
> Sai-Lai Lo                                   S.Lo@uk.research.att.com
> AT&T Laboratories Cambridge           WWW:
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