shmmni
shmmni specifies system-wide maximum allowable number of
shared memory segments (by limiting the number of segment
identifiers).
3
200 identifiers
Specify integer value. For more information, see Specifying Parameter Values.
shmmni specifies the maximum number of shared memory
segments allowed to exist simultaneously, system-wide. Any
shmget() system call requesting a new segment when
shmni segments already exist returns an error (see
HP-UX Reference entry shmget(2)). This
parameter defines the number of entries in the shared memory segment
identifier list which is stored in non-swappable kernel space. Space
allocated for identifiers is shmmni times 104 bytes.
Setting shmmni to an arbitrarily large number wastes memory
and can degrade system performance. Setting the value too high on
systems with small memory configuration may consume enough memory space
that the system cannot boot. Select a value that is as close to actual
system requirements as possible for optimum memory usage. A value not
exceeding 1024 is recommended unless system requirements dictate
otherwise.
Starbase graphics requires that shmmni be set to not less
than 4.
None.