I have used mapped files for shared "data space" between processes
(alternative to data segments).  As others have pointed out, it is
good to avoid short mapped as it is a limited resource.
 
Stan Sieler <[log in to unmask]> wrote:
 
>Hi,
 
>I was wondering:
 
>   How many people are using Mapped File access on MPE?
 
>   I'm particularly interested in users calling HPFOPEN with items
>   18 (short mapped) and 21 (long mapped).
 
>The answers may influence whether or not I develop/post performance data
>on mapped access techniques, pros, cons.
 
>Email responses (mailto:[log in to unmask]) are fine...I'll summarize results.
 
>Thanks!
 
>--
>Stan Sieler                                          [log in to unmask]
>                                     http://www.allegro.com/sieler.html