March 2007
Intermediate to advanced
488 pages
13h 46m
English
book
OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
by Hernando Bedoya, Jaime Gaug, James Kerl, Ser Ser NG, Jose Cardoso dos Santos
Content preview from OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
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Appendix A. Tools to check a performance problem 459
It is important to press F11 two more times when looking at the I/O with the WRKACTJOB
command to reach the display that shows the function for the jobs. If the function is
IDX-indexname, then the job is building an index. Further investigation must be done to
determine why the job is building an index.
Figure A-2 Work with Active Jobs display showing I/O used
WRKSYSACT command
WRKSYSACT command is provided with the Performance Tools. This command is helpful in
finding jobs that use system resources. The advantage of using this command over the
WRKACTJOB command is that the WRKSYSACT command ...
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