QBUFLWTH= parameter for procedures
Use the QBUFLWTH= parameter to specify a 1- to 3-digit number from 1 to 100 that establishes the low threshold percentage for the message queue buffer. The default is 50%.
When the message queue buffer reaches the low threshold, it is compressed. Compression only occurs when the number of message queue buffers exceeds the number allocated by system definition.
This parameter is valid only in the shared-queues environment.