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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128 OnDemand SQL Performance Analysis Simplified on DB2 for i5/OS in V5R4
5.1.7 I/O information
The final category in the dashboard display is the I/O information, shown here in Figure 5-9.
Figure 5-9 Input / Output information
As you can see, this category lists several averages related to input/output operations, such
as average CPU and clock time for the queries, as well as average synchronous and
asynchronous database reads and writes. The information displayed here is derived from the
detailed information logged in the 3019 records, which are collected by default when using
the SQL Performance Monitor wizard, or by specifying *DETAIL on the ...
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