Subject RE: [IB-Architect] Re: Events Improvement
Author Jim Starkey
At 10:19 AM 5/7/01 -0400, Leyne, Sean wrote:
>In the original architecture (and, I believe, the current
>implementation) the event table is in System V shared memory.
>Given the current cost of memory and 1Gb ram servers, it's the issue of
>memory usage a red-herring?
>Or is there some *nix limitation which I'm not aware of?

A very large event table wasting real RAM is a problem. If the
table lives in ordinary pagable space it doesn't matter at all.

I haven't checked what limits, if any, there are on the sizes of
shared memory regions on various operating systems. Increasing
the size of one in use, however, is a major pain in the butt.
I don't remember whether or not the current event manager can
grow dynamically. If not, the stress of the wildcard mechanism
will almost certainly require dynamic expansion.

Jim Starkey