Rick wrote...

>After further research, it turns out that a few more lines of code were
>added to a huge COBOL program that when installed, the system takes a
>nose dive. When removed, the system operates normal. We are thinking
>that this additional code, when multiplied by 500+ users stored in
>memory, caused the HP3000 performace bottlenecks.

Keep in mind that MPE/iX does use shared code (even longer than HPUX ;-)
so that the additional NMPRG or NMXL bytes would not multiply by the user
count running that program. There is only one copy of the code in memory,
only the process-related data structures like stack and heap are seperate
copies for every user/process.

If its not the add'l memory bytes used by the new code, maybe you should
look into what actions the "new code" performs... Maybe that contributes
to the higher system load... (or maybe someone compiled the program with
a debugging option and forgot to remove that before going to production).

Lars.


PS... If you have never used the Glance trial version that resides in
your PUB.SYS, you might find it useful to enable it now (I cannot recall
if the trial period is 30, 60 or 90 days) to have a closer look if your
system is suffering from CPU or memory or other type of bottleneck. See
GLREADME for unpacking details. [ hmmm -- was this a <plug> ?? ]