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Subsystem and Transaction Monitoring and Tuning with DB2 11 for z/OS by Yasuhiro Ohmori, Cathy Drummond, Adrian Burke, Felipe Bortoletto, Paolo Bruni

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Service task suspension
This chapter continues our look into class 3 wait times with the service task suspension, which is the accumulated wait time from switching synchronous execution units.
This chapter contains the following topics:
18.1 Synchronous execution unit switch suspensions
Some operations have to be performed under a different execution unit (EU) than the one that is used by the thread. ...

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