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Online Memory Tuning: Tips Based on DB2 Internals (D08)

Topic: 2006 NA

Subtopic: DB2 for LUW



DATE: 2006-05-10 (08:30 AM - 09:40 AM)
SPEAKERS: Adam Storm (IBM Toronto Lab)

When tuning database memory parameters online, care is required to avoid undesirable behaviour. This talk discusses DB2’s memory model and the internal mechanisms involved in online memory tuning. We then illustrate how reckless online tuning can cause plan changes, catalog table contention and reduced throughput. Finally we outline some techniques which will avoid unexpected and undesired behaviour when tuning online.

EXP. LEVEL: Beginner,Intermediate,Advanced

OBJECTIVES:

DB2 database memory model

Internals of online memory tuning

Situations that can occur when tuning memory

Tuning best practices

The future of online memory tuning - STMM



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