AIX 5L practical performance tools and tuning guide / Kumiko Hayashi ... [et al.].

Format:

Book

Author/Creator:

Hayashi, Kumiko, 1958- Author.

Series:

IBM redbooks.

Redbooks

Language:

English

Subjects (All):

Operating systems (Computers).

Computer networks--Workload.

Computer networks.

Client/server computing--Management.

Client/server computing.

AIX (Computer file).

Physical Description:

xiv, 724 p. : ill.

Edition:

1st ed.

Place of Publication:

Austin, TX : IBM Corp., International Technical Support Organization, c2005.

Language Note:

English

System Details:

text file

Summary:

This IBM Redbook incorporates the latest AIX 5L performance and tuning tools. It is a comprehensive guide about the performance monitoring and tuning tools that are provided with AIX 5L Version 5.3, and it is the ultimate guide for system administrators and support professionals who want to efficiently use the AIX performance monitoring and tuning tools and understand how to interpret the statistics. The usage of each tool is explained along with the measurements it takes and the statistics it produces. This redbook contains a large number of usage and output examples for each of the tools, pointing out the relevant statistics to look for when analyzing an AIX system's performance from a practical point of view. It also explains the performance API available with AIX 5L and gives examples about how to create your own performance tools. This redbook also contains an overview of the graphical AIX performance tools available with AIX 5L and the AIX Performance Toolbox Version 3.0. This redbook is a rework of the very popular redbook AIX 5L Performance Tools Handbook, SG24-6039, published in 2003.

Contents:

Front cover

Contents

Notices

Trademarks

Preface

The team that wrote this redbook

Become a published author

Comments welcome

Part 1 Introduction

Chapter 1. Performance overview

1.1 Performance expectations

1.1.1 System workload

1.1.2 Performance objectives

1.1.3 Program execution model

1.1.4 System tuning

1.2 Introduction to the performance tuning process

1.2.1 Performance management phases

Chapter 2. Performance analysis and tuning

2.1 CPU performance

2.1.1 Processes and threads

2.1.2 SMP performance

2.1.3 Initial advice for monitoring CPU

2.2 Memory overview

2.2.1 Virtual memory manager (VMM) overview

2.2.2 Paging space overview

2.3 Disk I/O performance

2.3.1 Initial advice

2.3.2 Disk subsystem design approach

2.3.3 Bandwidth-related performance considerations

2.3.4 Disk design

2.3.5 Logical Volume Manager concepts

2.4 Network performance

2.4.1 Initial advice

2.4.2 TCP/IP protocol

2.4.3 Network tunables

Part 2 Performance tools

Chapter 3. General performance monitoring tools

3.1 The topas command

3.1.1 Topas syntax

3.1.2 Basic topas output

3.1.3 Partition statistics

3.2 The jtopas utility

3.2.1 The jtopas configuration file

3.2.2 The info section for the jtopas tool

3.2.3 The jtopas consoles

3.2.4 The jtopas playback tool

3.3 The perfpmr utility

3.3.1 Information about measurement and sampling

3.3.2 Building and submitting a test case

3.3.3 Examples for perfpmr

3.4 Performance Diagnostic Tool (PDT)

3.4.1 Examples for PDT

3.4.2 Using reports generated by PDT

3.4.3 Running PDT collection manually

3.5 The curt command

3.5.1 Information about measurement and sampling

3.5.2 Examples for curt

3.5.3 Overview of the reports generated by curt

3.5.4 The default report.

3.6 The splat command

3.6.1 splat syntax

3.6.2 Information about measurement and sampling

3.6.3 The execution, trace, and analysis intervals

3.6.4 Trace discontinuities

3.6.5 Address-to-name resolution in splat

3.6.6 splat examples

3.7 The trace, trcnm, and trcrpt commands

3.7.1 The trace command

3.7.2 Information about measurement and sampling

3.7.3 How to start and stop trace

3.7.4 Running trace interactively

3.7.5 Running trace asynchronously

3.7.6 Running trace on an entire system for 10 seconds

3.7.7 Tracing a command

3.7.8 Tracing using one set of buffers per CPU

3.7.9 Examples for trace

3.7.10 The trcnm command

3.7.11 Examples for trcnm

3.7.12 The trcrpt command

3.7.13 Examples for trcrpt

Chapter 4. CPU analysis and tuning

4.1 CPU overview

4.1.1 Performance considerations with POWER4-based systems

4.1.2 Performance considerations with POWER5-based systems

4.2 CPU monitoring

4.2.1 The lparstat command

4.2.2 The mpstat command

4.2.3 The procmon tool

4.2.4 The topas command

4.2.5 The sar command

4.2.6 The iostat command

4.2.7 The vmstat command

4.2.8 The ps command

4.2.9 The trace tool

4.2.10 The curt command

4.2.11 The splat command

4.2.12 The truss command

4.2.13 The gprof command

4.2.14 The pprof command

4.2.15 The prof command

4.2.16 The tprof command

4.2.17 The time command

4.2.18 The timex command

4.3 CPU related tuning tools and techniques

4.3.1 The smtctl command

4.3.2 The bindintcpu command

4.3.3 The bindprocessor command

4.3.4 The schedo command

4.3.5 The nice command

4.3.6 The renice command

4.4 CPU summary

4.4.1 Other useful commands for CPU monitoring

Chapter 5. Memory analysis and tuning

5.1 Memory monitoring

5.1.1 The ps command

5.1.2 The sar command.

5.1.3 The svmon command

5.1.4 The topas monitoring tool

5.1.5 The vmstat command

5.2 Memory tuning

5.2.1 The vmo command

5.2.2 Paging space thresholds tuning

5.3 Memory summary

5.3.1 Other useful commands for memory performance

5.3.2 Paging space commands

Chapter 6. Network performance

6.1 Network overview

6.1.1 The maxmbuf tunable

6.2 Hardware considerations

6.2.1 Firmware levels

6.2.2 Media speed considerations

6.2.3 MTU size

6.3 Network monitoring

6.3.1 Creating network load

6.4 Network monitoring commands

6.4.1 The entstat command

6.4.2 The netstat command

6.4.3 The pmtu command

6.5 Network packet tracing tools

6.5.1 The iptrace command

6.5.2 The ipreport command

6.5.3 The ipfilter command

6.5.4 The netpmon command

6.5.5 The trpt command

6.6 NFS related performance commands

6.6.1 The nfsstat command

6.7 Network tuning commands

6.7.1 The no command

6.7.2 The Interface Specific Network Options (ISNO)

6.7.3 The nfso command

Chapter 7. Storage analysis and tuning

7.1 Data placement and design

7.1.1 AIX I/O stack

7.1.2 Physical disk and disk subsystem

7.1.3 Device drivers and adapters

7.1.4 Volume groups and logical volumes

7.1.5 VMM and direct I/O

7.1.6 JFS/JFS2 file systems

7.2 Monitoring

7.2.1 The iostat command

7.2.2 The filemon command

7.2.3 The fileplace command

7.2.4 The lslv, lspv, and lsvg commands

7.2.5 The lvmstat command

7.2.6 The sar -d command

7.3 Tuning

7.3.1 The lsdev, rmdev and mkdev commands

7.3.2 The lscfg, lsattr, and chdev commands

7.3.3 The ioo command

7.3.4 The lvmo command

7.3.5 The vmo command

Part 3 Case studies and miscellaneous tools

Chapter 8. Case studies

8.1 Case study: NIM server

8.1.1 Setting up the environment.

8.1.2 Monitoring NIM master using topas

8.1.3 Upgrading NIM environment to Gbit Ethernet

8.1.4 Upgrading the disk storage

8.1.5 Real workload with spread file system

8.1.6 Summary

8.2 POWER5 case study

8.2.1 POWER5 introduction

8.2.2 High CPU

8.2.3 Evaluation

Chapter 9. Miscellaneous tools

9.1 Workload manager monitoring (WLM)

9.1.1 Overview

9.1.2 WLM concepts

9.1.3 Administering WLM

9.1.4 WLM performance tools

9.2 Partition load manager (PLM)

9.2.1 PLM introduction

9.2.2 Memory management

9.2.3 Processor management

9.3 A comparison of WLM and PLM

9.4 Resource monitoring and control (RMC)

9.4.1 RMC commands

9.4.2 Information about measurement and sampling

9.4.3 Verifying RMC facilities

9.4.4 Examples using RMC

Chapter 10. Performance monitoring APIs

10.1 The performance status (Perfstat) API

10.1.1 Compiling and linking

10.1.2 Changing history of perfstat API

10.1.3 Subroutines

10.2 System Performance Measurement Interface

10.2.1 Compiling and linking

10.2.2 Terms and concepts for SPMI

10.2.3 Subroutines

10.2.4 Basic layout of SPMI program

10.2.5 SPMI examples

10.3 Performance Monitor API

10.3.1 Performance Monitor data access

10.3.2 Compiling and linking

10.3.3 Subroutines

10.3.4 PM API examples

10.3.5 PMAPI M:N pthreads support

10.4 Miscellaneous performance monitoring subroutines

10.4.1 Compiling and linking

10.4.2 Subroutines

10.4.3 Combined example

Appendix A. Source code

perfstat_dump_all.c

perfstat_dude.c

spmi_dude.c

spmi_data.c

spmi_file.c

Spmi_traverse.c

dudestat.c

Appendix B. Trace hooks

AIX 5L trace hooks

Abbreviations and acronyms

Related publications

IBM Redbooks

Other publications

Online resources

How to get IBM Redbooks

Help from IBM

Index.

Back cover.

Notes:

"This edition applies to Version 5, Release 3, of AIX 5L (product number 5765-G03)."

"April 2005."

Includes bibliographical references and index.

OCLC:

61762285