HP OpenVMS Systems Documentation
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OpenVMS Performance Management
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Contents (summary)
Preface Preface
Chapter 1 Performance Management
Chapter 2 Performance Options
Chapter 3 Memory Management Concepts
Chapter 4 Evaluating System Resources
Chapter 5 Diagnosing Resource Limitations
Chapter 6 Managing System Resources
Chapter 7 Evaluating the Memory Resource
Chapter 8 Evaluating the Disk I/O Resource
Chapter 9 Evaluating the CPU Resource
Chapter 10 Compensating for Resource Limitations
Chapter 11 Compensating for Memory-Limited Behavior
Chapter 12 Compensating for I/O-Limited Behavior
Chapter 13 Compensating for CPU-Limited Behavior
Appendix A Decision Trees
Appendix B MONITOR Data Items
Appendix C MONITOR Multifile Summary Report
Appendix D ODS--1 Performance Information
  Glossary
  Index
  Figures
  Examples
  Tables

Contents

Preface
Preface Preface
Chapter 1
1 Performance Management
     1.1     System Performance Management Guidelines
         1.1.1         The Performance Management Process
         1.1.2         Conducting a Performance Audit
     1.2     Strategies and Procedures
     1.3     System Manager's Role
         1.3.1         Prerequisites
         1.3.2         System Utilities and Tools
         1.3.3         Why Use Them?
         1.3.4         Knowing Your Work Load
     1.4     Developing a Strategy
         1.4.1         Managing the Work Load
         1.4.2         Distributing the Work Load
         1.4.3         Sharing Application Code
     1.5     Analyzing Complaints
         1.5.1         Preliminary Steps
         1.5.2         Hardware Problem
         1.5.3         Blocked Process
         1.5.4         Unrealistic Expectations
Chapter 2
2 Performance Options
     2.1     Decompressing System Libraries
     2.2     Disabling File System High-Water Marking
     2.3     Setting RMS File-Extend Parameters
     2.4     Installing Frequently Used Images
     2.5     Enabling File Caching
     2.6     Reducing System Disk I/O
     2.7     Tuning
         2.7.1         Prerequisites
         2.7.2         Tuning Suggestions
         2.7.3         Tools and Utilities
         2.7.4         When to Use AUTOGEN
         2.7.5         Adjusting System Parameter Values
         2.7.6         Using AUTOGEN Feedback
         2.7.7         Evaluating Tuning Success
             2.7.7.1             When to Stop Tuning
             2.7.7.2             Still Not Satisfied?
Chapter 3
3 Memory Management Concepts
     3.1     Memory
         3.1.1         Physical Memory
         3.1.2         Virtual Memory
         3.1.3         Process Execution Characteristics
     3.2     Working Set Paging
     3.3     Process Swapping
         3.3.1         What Is the Swapper?
         3.3.2         Types of Swapping
     3.4     Initial Working Set Quotas and Limits
         3.4.1         Processes
         3.4.2         Subprocesses and Detached Processes
         3.4.3         Batch Queues
         3.4.4         Required Memory Resources
         3.4.5         User Programs
         3.4.6         Guidelines
     3.5     Automatic Working Set Adjustment (AWSA)
         3.5.1         What Are AWSA Parameters?
         3.5.2         Working Set Regions
         3.5.3         Adjustment Period
         3.5.4         How Does AWSA Work?
         3.5.5         Page Fault Rates
         3.5.6         Voluntary Decrementing
         3.5.7         Adjusting AWSA Parameters
         3.5.8         Caution
         3.5.9         Performance Management Strategies for Tuning AWSA
     3.6     Swapper Trimming
         3.6.1         First-Level Trimming
         3.6.2         Second-Level Trimming
         3.6.3         Choosing Candidates for Second-Level Trimming
         3.6.4         Disabling Second-Level Trimming
         3.6.5         Swapper Trimming Versus Voluntary Decrementing
         3.6.6         Virtual Balance Slots (VAX only)
     3.7     Active Memory Reclamation from Idle Processes
         3.7.1         Reclaiming Memory from Long-Waiting Processes
         3.7.2         Reclaiming Memory from Periodically Waking Processes
         3.7.3         Setting the FREEGOAL Parameter
         3.7.4         Sizing Paging and Swapping Files
         3.7.5         How Is the Policy Enabled?
     3.8     Memory Sharing
         3.8.1         Global Pages
         3.8.2         System Overhead
         3.8.3         Controlling the Overhead
         3.8.4         Installing Shared Images
         3.8.5         Verifying Memory Sharing
     3.9     OpenVMS Scheduling
         3.9.1         Time Slicing
         3.9.2         Process State
         3.9.3         Process Priority
         3.9.4         Priority Boosting
         3.9.5         Scheduling Real-Time Processes
         3.9.6         Tuning
         3.9.7         Class Scheduler
         3.9.8         Processor Affinity

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