August 2012
Intermediate to advanced
452 pages
15h 41m
English
book
Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
by Paolo Bruni, Patric Becker, Willie Favero, Ravikumar Kalyanasundaram, Andrew Keenan, Steffen Knoll, Nin Lei, Cristian Molaro, P S Prem
Content preview from Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
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Chapter 12. Performance considerations 315
12.3 Existing workload scenario
During the execution of the scenario, we verified up to 24 concurrent queries being executed
in DB2 Analytics Accelerator and collected the performance results.
12.3.1 Concurrent users
Our workoad scenario consists of 80 concurrent users executing Cognos reports against the
BAGOQ database. These reports are a mixture of short, intermediate, and long-running
reports, which in total generate 26 queries against the DB2 for z/OS database. See more
details at 3.5.4, “Workload scenarios” on page 69.
Example 12-16 shows the DISPLAY ACCEL command output during the DB2 Analytics ...
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