Understanding Buffer Pool Performance and ... - Quest Software
Understanding Buffer Pool Performance and ... - Quest Software
Understanding Buffer Pool Performance and ... - Quest Software
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Evaluating <strong>Performance</strong> Metrics<br />
You Can Expect More<br />
Logical IO vs. physical IO – minimize number of times DB2<br />
must access physical disks<br />
Key I/O Metrics:<br />
– Overall hit rate<br />
– Data hit rate<br />
– Index hit rate<br />
– Physical IO read rate