March 2005
Intermediate to advanced
298 pages
9h 21m
English
book
IBM iDoctor iSeries Job Watcher: Advanced Performance Tool
by Jim Cook, Sandi Chromey, Tom Edgerton, Debbie Hatt
Content preview from IBM iDoctor iSeries Job Watcher: Advanced Performance Tool
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Appendix E. Job Watcher advanced topics 273
Before and after graphs for filled blank interval support
We compare the Collection overview time signature graphs in Figure E-7.
The graph at the top of the figure shows the collection-wide wait profile for our data when
the CRTWCHSUM command has not yet been run.
The graph at the bottom of the figure shows the collection-wide wait profile for the same
data after the CRTWCHSUM command has been run.
Figure E-7 Filled blank waits comparison: Collection overview time signature
Notice that the seize wait time in intervals such as 147, 158, 159, and 161 is now correctly
represented in the lower graph. ...
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