Experimental Physics and
Industrial Control System

"Jeff Hill" <[email protected]> · Thu, 16 Aug 2001 12:53:28 -0600

> 
> I've noticed that after opening many windows in MEDM, the memory in my
> MV167 goes down proportionally to the number of records I'm displaying.
> However, after closing the windows, the available memory remains the same.
> Is there a way to deallocate the memory that was used for these
> connections?
> 

The CA server returns the memory involved to a free list. This approach
avoids long term fragmentation of the IOC's primary memory allocation pool
and also improves overall efficiency of the server. The IOC's response is
more deterministic in the face of widely varying client load, and it is
easier for system designers to determine how much memory will be needed for 
peak transient operating loads.

There is not currently any mechanism available that will purge this free list 
back into the primary memory allocation pool.

Jeff

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System