[ff@test ff]$ ipcs -u

------ Messages Status --------
allocated queues = 0
used headers = 0
used space = 0 bytes

------ Shared Memory Status --------
segments allocated 52
pages allocated 23105
pages resident  22354
pages swapped   0
Swap performance: 0 attempts	 0 successes

------ Semaphore Status --------
used arrays = 148
allocated semaphores = 2500