------ Shared Memory Segments -------- key shmid owner perms bytes nattch status 0x00000000 1343489 root 644 80 2 0x00000000 1376258 root 644 16384 2 0x00000000 1409028 root 644 280 2 ------ Semaphore Arrays -------- key semid owner perms nsems ------ Message Queues -------- key msqid owner perms used-bytes messages