shmem(5)shmem(5)NAMEshmem - enable or disable System V shared memory
DESCRIPTION
The tunable is obsolete. The System V IPC shared memory subsystem is
always enabled.
Shared memory is an efficient InterProcess Communications (IPC) mecha‐
nism. One process creates a shared memory segment and attaches it to
its address space. Any processes looking to communicate with this
process through the shared memory segment, then attach the shared mem‐
ory segment to their corresponding address spaces as well. Once
attached, a process can read from or write to the segment depending on
the permissions specified while attaching it.
WARNINGS
Installation of optional kernel software, from HP or other vendors, may
cause changes to tunable parameter values. After installation, some
tunable parameters may no longer be at the default or recommended val‐
ues. For information about the effects of installation on tunable val‐
ues, consult the documentation for the kernel software being installed.
For information about optional kernel software that was factory
installed on your system, see at
AUTHOR
was developed by HP.
SEE ALSOshmmax(5), shmmni(5), shmseg(5).
Tunable Kernel Parameters shmem(5)