MPE/iX 5.5 Operating System Limits

A unique User Logging process is created for each active Log ID. Each User Logging
process has a LOG BUF DST associated with it. User Logging processes are started
using the :LOG command with the START or RESTART option (see the discussion of
User Logging Processes - LOG TABLE - in this section).
The maximum number of processes logging to a single User Logging ID is configurable
in SYSGEN (log section, ulog command, NLOGPROCS parameter). The maximum
value for NLOGPROCS is 1140. This limit is based on the maximum possible size of the
LOG BUF DST.
Job/session:
Item Limit Description Resource Table
1 500 Console Requests Reply Info Table
2 1365 RINs, Global RIN DST
2 5459 RINs, Total RIN DST
3 2700 Total Concurrent Logons (Local only) Concurrent Process Limit
4 ~2700 Total Concurrent Logons (Remote&Local)NS/Concurrent PRocesses
(1) Reply info table - KSO166
The Reply Information Table (RIT) contains one entry for each console request. There is
a limit of 500 console requests at any one time.
(2) Rin DST - DST022
Entries in the RIN table are allocated whenever a Global RIN or Local RIN is acquired
using the :GETRIN command or GETLOCRIN intrinsic. Global RINs are deallocated
with the :FREERIN command, and Local RINs are deallocated by the FREELOCRIN
intrinsic. The CM file system also uses RINs (called File RINs) whenever a CM type file
is opened for FLOCK access.
The total number of RINs that are available on the system is 5,459, of which a maximum
of 1365 can be used as Global RINs.
(3) Concurrent process limit