MPE/iX 5.5 Operating System Limits

e) Iowait completors
One NM_IOWAIT_COMPLETOR for each VTSERVER process. There is an IOWAIT
port procedure server and procedure name "iowait_port_server".This is bound to a PORT
wait entry.
DST & other information
Max DST's available on the system = 16,383
Max DST size = 32767( Value of 32764 is currently used in NS code)
Max Processes on the system = 8190
Max NM IOWAIT COMPLETORS = Dependent on MAX_CMPORTS
f) Max ldev's :
Requirement is 1 ldev for each remote session. Max ldev's available on 6.0 = 4649
9) Breaks & subsystem breaks :
The local VTSERVER(VTTM) steals breaks & ssbrk from CI. Breaks are disabled with
CI elimination. However subsystem break is enabled.The subsystem break is handled by
application.
Terminal and serial printer i/o limits
The Terminal and Serial Printer subsystem that is accessed via the DTC is comprised of
different software modules or managers. These managers access the DTC and the
operating system via data structures that are used to hold information and data about the
individual connections. Limits to this access are described below under the different
software managers;