shmem
shmem enables or disables System V IPC shared memory
support in the kernel at system boot time (Series 700 only).
0 (exclude System V IPC shared memory code from kernel)
1 (include System V IPC shared memory code in kernel)
1
Specify integer value of 0 or 1. For more
information, see Specifying
Parameter Values.
shmem determines whether the code for System V IPC shared
memory is to be included in the kernel at system boot time (Series 700
systems only).
shmem = 1 shmem = 0 Series 800 systems: IPC shared memory is always enabled in the kernel.
Series 700 systems: If shmem is set to zero, all other IPC
shared memory parameters are ignored.
Some subsystems such as Starbase graphics require shared memory. Others such as X Windows use shared memory (often in large amounts) for server-client communication if it is available, or sockets if it is not. If memory space is at a premium and such applications can operate, albeit slower, without shared memory, you may prefer to run without shared memory enabled.
None.