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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Chapter 2. Overview of job waits and iDoctor for iSeries Job Watcher 35
A further breakdown of (1), which we can now label Bucket 1, might look like Figure 2-9.
Figure 2-9 Further breakdown of a thread’s run/wait signature
2.9.3 Bucket 2: CPU queuing
No wait points assigned. Waiting for a processor is a special kind of wait. This is simply the
number of microseconds a thread or task has waited, while ready to run, for a processor to
become available.
After reading the complex description of Bucket 1 (Time Dispatched), we learned that Time
Dispatched can also include “sharing” delays. This raises the natural question:
What is the difference be
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