About This Book

Performance overview

Performance tuning

Performance tuning enhancements for AIX 5.2

System performance monitoring

Initial performance diagnosis

Resource Management Overview

Introduction to Multiprocessing

Planning and Implementing for Performance

Using POWER4-based Systems

CPU performance

CPU performance monitoring

Memory performance

Logical volume and disk I/O performance

Monitoring Disk I/O

Changing Logical Volume Attributes That Affect Performance

Physical Volume Considerations

Volume Group Recommendations

Reorganizing Logical Volumes

Using Disk-I/O Pacing

Tuning Logical Volume Striping

Using Raw Disk I/O

Using sync/fsync Calls

Setting SCSI-Adapter and Disk-Device Queue Limits

Expanding the Configuration

Using RAID

Using SSA

Using Fast Write Cache

File system performance

NFS performance

Network performance

LPAR performance

Dynamic logical partitioning

Application Tuning

Java performance monitoring

Analyzing Performance with the Trace Facility

Reporting Performance Problems

Appendix A. Monitoring and Tuning Commands and Subroutines

Appendix B. Efficient Use of the ld Command

Appendix C. Accessing the Processor Timer

Appendix D. Determining CPU Speed

Appendix E. National Language Support: Locale versus Speed

Appendix F. Summary of Tunable Parameters

Appendix G. Test Case Scenarios

Appendix H. Notices

Index