Tuning query workloads that run on DB2 for Linux, UNIX, and Windows
IBM® InfoSphere® Optim™ Query
Workload Tuner for DB2® for Linux, UNIX, and Windows provides
tools for improving the performance of query workloads.
For a list of scenarios in which query-workload tuning can
be helpful and steps that you can follow for each scenario, see Scenarios for tuning query workloads.
Preparing to tune query workloads
Before tuning query workloads, ensure that you have the
right authorities and privileges, that the full set of tuning features
is activated on your data server, that global default values are set
to the values that you want, and that other important default values
are set.