Understanding Buffer Pool Performance and ... - Quest Software

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Collecting Performance Metrics You Can Expect More DB2 Snapshot Switches (cont’d) • Turning switches on at the instance – take care here UPDATE DATABASE MANAGER CONFIGURATION USING dft_mon_bufpool ON dft_mon_lock ON dft_mon_sort ON dft_mon_stmt ON dft_mon_table ON dft_mon_uow ON IMMEDIATE • Turning switches on for session UPDATE MONITOR SWITCHES USING bufferpool ON
Collecting Performance Metrics • Issuing a SNAPSHOT request – Instance level (requires “ATTACH”) • For all active databases GET SNAPSHOT FOR ALL BUFFERPOOLS • For a specific database GET SNAPSHOT FOR BUFFERPOOLS ON database_name • For a specific database partition GET SNAPSHOT FOR BUFFERPOOLS ON database_name AT DBPARTITIONNUM db_partition_number You Can Expect More • BUFFERPOOL and DATABASE snapshot calls are essential for tuning buffer pools
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 and 20: Collecting Performance Metrics Tuni
Page 21: Collecting Performance Metrics DB2
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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