How to Check Interprocess Communication (sar -m)
Use the sar -m command to report interprocess communication activities.
$ sar -m 00:00:00 msg/s sema/s 01:00:00 0.00 0.00 |
These figures will usually be zero (0.00), unless you are running applications that use messages or semaphores.
The output from the -m option is described in the table below.
Table 36-13 Output From the sar -m Command|
Field Name |
Description |
|---|---|
|
msg/s |
The number of message operations (sends and receives) per second. |
|
sema/s |
The number of semaphore operations per second. |
Example--Checking Interprocess Communication
The following abbreviated example shows output from the sar -m command.
$ sar -m SunOS venus 5.8 Generic sun4u 09/07/99 00:00:00 msg/s sema/s 01:00:00 0.00 0.00 02:00:02 0.00 0.00 03:00:00 0.00 0.00 04:00:00 0.00 0.00 05:00:01 0.00 0.00 06:00:00 0.00 0.00 Average 0.00 0.00 |
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