Performance testing issue on z/OS



We have two mainframe QMs communicating with request reply architecture. A request is initiated from QM A and hits QM B and is picked up by an IMS application and sends back a reply to QM A. Most of the replies come in time (sub seconds) but some are taking upto 2 minutes. Is there anyway we can point out where the issue is. I dont think this is an MQ issue but you never know. Both the QMs have V 7011 installed on them. Please let me know your thoughts.

Please help.

I didn’t find the right solution from the Internet.

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