IBM Informix Dynamic Server Performance Guide
Introduction
Performance Basics
Performance Monitoring and the Tools You Use
Effect of Configuration on CPU Utilization
Effect of Configuration on Memory Utilization
Effect of Configuration on I/O Activity
Table Performance Considerations
Index Performance Considerations
Locking
Fragmentation Guidelines
Queries and the Query Optimizer
Optimizer Directives
Parallel Database Query
In This Chapter
What Parallel Database Query (PDQ) Is
Structure of a PDQ Query
Database Server Operations That Use PDQ
Memory Grant Manager
Allocating Resources for Parallel Database Queries
Managing Applications
Monitoring PDQ Resources
Improving Individual Query Performance
The onperf Utility on UNIX
Appendix A. Case Studies and Examples
Appendix B. Accessibility
Notices
Index