semaphores and shared memory settings
shmsys:shminfo_shmmax
Maximum shared memory segment size
shmsys:shminfo_shmmin
Minimum shared memory segment size
shmsys:shminfo_shmmni
Number of shared memory identifiers
shmsys:shminfo_shmseg
Number of segments, per process
semsys:seminfo_semmap
Number of entries in the semaphore map
semsys:seminfo_semmni
Number of semaphore identifiers
semsys:seminfo_semmns
Number of semaphores in the system
semsys:seminfo_semmsl
Maximum number of semaphores, per ID
semsys:seminfo_semmnu
Number of processes using the undo facility
semsys:seminfo_semume
Maximum number of undo structures per process
