Minimizing resource consumption

To minimize resource consumption, do each of the following:

• Design the environment so that as many transactions as possible are processed locally.
• Provide physical links that go directly from local to remote systems; no intermediate systems should be involved in the transaction routing process. Transactions that must be routed through intermediate systems require additional processor activity, message queue activity, and logging activity.
• Design the message queue buffer pool in each processor to eliminate unnecessary message queue I/O activity.
• Design the queue buffer size to be large enough to hold the transaction input message and output response message in a single queue buffer.
• Define the physical link buffer sizes large enough to hold the message prefix plus all the segments of most messages. The physical link buffer size defines the default buffer size for all logical links assigned to a physical link. You can specify different buffer sizes for each logical link by using the UPDATE MSLINK NAME(linkname) SET(BUFSIZE(new_bufsize)); however, the specifications for the buffer sizes for any given logical link must be the same in both of the IMS systems that the logical link connects.