Linux - How to get inter process communication information ipc, Find information about information about Semaphore and Shared Memory Segments

How to get inter process communication information ipc

You can use the ipcs command to get information about Semaphore Arrays, Shared Memory Segments and Message Queues.

 # ipcs

The ipcs command will print the semaphore and Inter process communication information ( IPC ) information.

To get IPC information specifically, use
 # ipcs -u

Sample Output:
------ Shared Memory Status --------
segments allocated 100
pages allocated 4240
pages resident  3430
pages swapped   86
Swap performance: 0 attempts	 0 successes

------ Semaphore Status --------
used arrays = 4
allocated semaphores = 11

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

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