Understanding Buffer Pool Performance and ... - Quest Software

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Collecting Performance Metrics Snapshot monitor Event Monitor You Can Expect More “Point in time” representation of data “Event” based representation of data Less overhead (~5%) More overhead (~10-20%) Need to reissue over time “Create” it once and it runs until it’s told to stop Monitor Switches need to be turned on to collect data “Real time” balance of application and database performance “Create” takes care of everything “Historical” main focus on Application statistics
Collecting Performance Metrics DB2 Snapshot Switches • Seven Switches – Buffer Pool (dft_mon_bufpool) – Lock (dft_mon_lock) – Sort (dft_mon_sort) – Statement (dft_mon_stmt) – Unit of Work (dft_mon_uow) – Table (dft_mon_table) – Timestamp (dft_mon_timestamp) You Can Expect More
Page 1 and 2: Understanding Buffer Pool Performan
Page 3 and 4: Introduction You Can Expect More Q:
Page 5 and 6: Buffer Pool Overview Basics and Ter
Page 7 and 8: Buffer Pool Overview Tuning Goals
Page 9 and 10: Buffer Pool Overview Prefetch You C
Page 11 and 12: You Are Here - DB2 Process Model Li
Page 13 and 14: Buffer Pool Management You Can Expe
Page 19: Collecting Performance Metrics Tuni
Page 23 and 24: Collecting Performance Metrics •
Page 25 and 26: Collecting Performance Metrics •
Page 27 and 28: Evaluating Performance Metrics You
Page 29 and 30: Evaluating Performance Metrics Data
Page 31 and 32: Evaluating Performance Metrics Phys
Page 33 and 34: Evaluating Performance Metrics Pref
Page 35 and 36: Evaluating Performance Metrics Eval
Page 37 and 38: Evaluating Performance Metrics TCR
Page 39 and 40: Conclusion You Can Expect More •

Understanding Buffer Pool Performance and ... - Quest Software

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