[omniORB-dev] Implementation Repository
kendall bailey
kendall@drakealumni.net
Thu, 30 Jan 2003 14:10:27 -0600
James Waller wrote:
>Right, but I believe that even having to make a
>separate call to the ImR to get an IOR for every
>object (regardless of whether the ImR stores anything)
>will adversely affect scalability. If a server wants
>to publish a ton of object references, that's still a
>lot of calls to the ImR which makes it become more of
>a bottleneck. However, maybe a way to (at least
>partially) alleviate this would be to allow the server
>to get IORs en masse by making one call to the ImR
>with a whole load of object references.
>
>
Each time a distinct client uses one of the indirect references, it hits
the ImR first. I would think this would happen as much or more often
than generation of the references in the first place, and so you may be
avoiding a small percentage of the load the ImR will face. I just
measured my prototype at 600 indirect reference creations/sec. That's
on a 450 MHz pII running lots of other desktop stuff too. I like the
batch request idea. If the result of a database request is to be
returned as a bunch of indirect persistent references, then it makes a
lot of sense for the ImR to handle them in one go.
But hey, if the interceptor is already written to do the job, I won't
argue. One of my goals is for the ImR to work with C++ and Python
servers. Can the interceptor be installed in a Python server?
Kendall