The VTAM application I worked on in the late 80s/early 90s (TPX) had its 
own storage management routines and an operator display to show usage of 
each slot pool.  "Storage creep" was the visible observation that the 
totals for each pool were increasing.  As the pool with the smallest size 
maxed out, the next pool would start creeping.  By the time the largest 
pool was full, the address space was minutes from crashing.  I think the 
original code had been written by Morgan Stanley and bought by Duquesne 
Systems in the early 80s.

IBM Mainframe Discussion List <[email protected]> wrote on 
08/17/2012 04:18:48 PM:

> From: "Ward, Mike S" <[email protected]>
> 
> I believe you are right. Storage Creep does sound familiar. Now they
> use the distributed term Memory Leak.

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]
> 
> Mike Ward posted:
> "Way back when, we used to call a memory leak something else on the 
> mainframe. I have used memory leak for so long I forgot what that term 
was."
> 
> I think I remember hearing "storage creep".


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