msgmni

Description

The msgmni parameter specifies the maximum number of message queues system-wide.

This parameter is specified in /var/sysgen/mtune/msg.

Value

Default: 50

Range: 10-1000

When to Change

Increase this parameter if you want more message queues on the system. Decrease the value to limit the message queues.

Notes

If there are not enough message queues, a msgget(2) system call that attempts to create a new message queue returns the error:

ENOSPC: No space left on device