AIX 5L performance tools handbook / IBM, International Technical Support Organization.

Format:

Book

Contributor:

International Business Machines Corporation. International Technical Support Organization.

Series:

IBM redbooks.

IBM redbooks

Language:

English

Subjects (All):

Operating systems (Computers).

System design.

AIX (Computer file).

Physical Description:

xxviii, 1006 p. : ill.

Edition:

2nd ed.

Place of Publication:

Austin, TX : IBM Corp., International Technical Support Organization, 2003.

Language Note:

English

Contents:

Front cover

Contents

Figures

Tables

Notices

Trademarks

Preface

The team that wrote this redbook

Become a published author

Comments welcome

Summary of changes

August 2003, Second Edition

Part 1 AIX 5L performance tools

Chapter 1. Introduction to AIX performance monitoring and tuning

1.1 Performance expectation

1.2 CPU performance

1.2.1 Initial advice

1.2.2 Processes and threads

1.2.3 Scheduling

1.2.4 SMP performance

1.3 Memory performance

1.3.1 Initial advice

1.3.2 Memory segments

1.3.3 Paging mechanism

1.3.4 Memory load control mechanism

1.3.5 Paging space allocation policies

1.3.6 Memory leaks

1.3.7 Shared memory

1.4 Disk I/O performance

1.4.1 Initial advice

1.4.2 Disk subsystem design approach

1.4.3 Bandwidth-related performance considerations

1.4.4 Disk design

1.4.5 Logical Volume Manager concepts

1.5 Network performance

1.5.1 Initial advice

1.5.2 TCP/IP protocols

1.5.3 Network tunables

1.6 Kernel tunables

1.6.1 Tunables commands

1.6.2 Tunable files

1.7 The /proc file system

Chapter 2. Getting started

2.1 Tools and filesets

2.2 Tools by resource matrix

2.3 Performance tuning approach

2.3.1 CPU bound system

2.3.2 Memory bound system

2.3.3 Disk I/O bound system

2.3.4 Network I/O bound system

Part 2 Multi-resource monitoring and tuning tools

Chapter 3. The fdpr command

3.1 fdpr

3.1.1 Information about measurement and sampling

3.2 Examples for fdpr

Chapter 4. The iostat command

4.1 iostat

4.1.1 Information about measurement and sampling

4.2 Examples for iostat

4.2.1 System throughput report

4.2.2 tty and CPU utilization report

4.2.3 Disk utilization report

4.2.4 Disk utilization report for MPIO

4.2.5 Adapter throughput report

Chapter 5. The netpmon command.

5.1 netpmon

5.1.1 Information about measurement and sampling

5.2 Examples for netpmon

5.2.1 Process statistics

5.2.2 FLIH and SLIH CPU statistics

5.2.3 TCP socket call statistics

5.2.4 Detailed statistics

Chapter 6. Performance Diagnostic Tool (PDT)

6.1 PDT

6.1.1 Information about measurement and sampling

6.2 Examples for PDT

6.2.1 Editing the configuration files

6.2.2 Using reports generated by PDT

6.2.3 Creating a PDT report manually

Chapter 7. The perfpmr command

7.1 perfpmr

7.1.1 Information about measurement and sampling

7.1.2 Building and submitting a test case

7.2 Examples for perfpmr

Chapter 8. The ps command

8.1 ps

8.1.1 Information about measurement and sampling

8.2 Examples for ps

8.2.1 Displaying the top 10 CPU-consuming processes

8.2.2 Displaying the top 10 memory-consuming processes

8.2.3 Displaying the processes in order of being penalized

8.2.4 Displaying the processes in order of priority

8.2.5 Displaying the processes in order of nice value

8.2.6 Displaying the processes in order of real memory use

8.2.7 Displaying the processes in order of I/O

8.2.8 Displaying WLM classes

8.2.9 Viewing threads

Chapter 9. The sar command

9.1 sar

9.1.1 Information about measurement and sampling

9.2 Examples for sar

9.2.1 Monitoring one CPU at a time

9.2.2 Collecting statistics by using cron

9.2.3 Displaying access time system routines

9.2.4 Monitoring buffer activity for transfers, access, and caching

9.2.5 Monitoring system calls

9.2.6 Monitoring activity for each block device

9.2.7 Monitoring kernel process activity

9.2.8 Monitoring the message and semaphore activities

9.2.9 Monitoring the kernel scheduling queue statistics

9.2.10 Monitoring the paging statistics

9.2.11 Monitoring the processor utilization.

9.2.12 Monitoring tty device activity

9.2.13 Monitoring kernel tables

9.2.14 Monitoring system context switching activity

Chapter 10. The schedo and schedtune commands

10.1 schedo

10.1.1 Recommendations and precautions

10.2 Examples for schedo

10.2.1 Displaying current settings

10.2.2 Tuning CPU parameters

10.2.3 Tuning memory parameters

10.3 schedtune

Chapter 11. The topas command

11.1 topas

11.1.1 Information about measurement and sampling

11.2 Examples for topas

11.2.1 Common uses of the topas command

11.2.2 Using subcommands

11.2.3 Monitoring CPU usage

11.2.4 Monitoring disk problem

Chapter 12. The truss command

12.1 truss

12.1.1 Information about measurement and sampling

12.2 Examples for truss

12.2.1 Using truss

12.2.2 Using the summary output

12.2.3 Monitoring running processes

12.2.4 Analyzing file descriptor I/O

12.2.5 Checking program parameters

12.2.6 Checking program environment variables

12.2.7 Tracking child processes

12.2.8 Checking user library call

Chapter 13. The vmstat command

13.1 vmstat

13.1.1 Information about measurement and sampling

13.2 Examples for vmstat

13.2.1 Virtual memory activity

13.2.2 Forks report

13.2.3 Interrupts report

13.2.4 VMM statisics report

13.2.5 Sum structure report

13.2.6 I/O report

Chapter 14. The vmo, ioo, and vmtune commands

14.1 vmo

14.1.1 Information about measurement and sampling

14.1.2 Recommendations and precautions for vmo

14.2 Examples for vmo

14.3 ioo

14.3.1 Information about measurement and sampling

14.3.2 Recommendations and precautions

14.4 Examples for ioo

14.4.1 Displaying I/O setting

14.4.2 Changing tunable values

14.4.3 Logical volume striping

14.4.4 Increasing write activity throughput

14.5 vmtune.

Chapter 15. Kernel tunables commands

15.1 tuncheck

15.1.1 Examples for tuncheck

15.2 tunrestore

15.2.1 Examples for tunrestore

15.3 tunsave

15.3.1 Examples for tunsave

15.4 tundefault

15.4.1 Examples for tundefault

15.5 tunchange

15.5.1 Examples for tunchange

Chapter 16. Process-related commands

16.1 procwdx

16.2 procfiles

16.3 procflags

16.4 proccred

16.5 procmap

16.6 procldd

16.7 procsig

16.8 procstack

16.9 procstop

16.10 procrun

16.11 procwait

16.12 proctree

Part 3 CPU-related performance tools

Chapter 17. The alstat and emstat commands

17.1 Alignment and emulation exception

17.2 alstat

17.2.1 Information about measurement and sampling

17.2.2 Examples for alstat

17.2.3 Detecting and resolving alignment problems

17.3 emstat

17.3.1 Information about measurement and sampling

17.3.2 Examples for emstat

17.3.3 Detecting and resolving emulation problems

Chapter 18. The bindintcpu and bindprocessor commands

18.1 bindintcpu

18.1.1 Examples for bindintcpu

18.2 bindprocessor

18.2.1 Information about measurement and sampling

18.2.2 Examples for bindprocessor

Chapter 19. The gprof, pprof, prof, and tprof commands

19.1 CPU profiling tools

19.1.1 Comparison of tprof versus prof and gprof

19.2 gprof

19.2.1 Information about measurement and sampling

19.2.2 Profiling with the fork and exec subroutines

19.2.3 Examples for gprof

19.3 pprof

19.3.1 Information about measurement and sampling

19.3.2 Examples for pprof

19.4 prof

19.4.1 Information about measurement and sampling

19.4.2 Examples for prof

19.5 tprof

19.5.1 Information about measurement and sampling

19.5.2 Examples for tprof

Chapter 20. The nice and renice commands

20.1 nice

20.1.1 Information about measurement and sampling.

20.2 Examples for nice

20.2.1 Reducing the priority of a process

20.2.2 Improving the priority of a process

20.3 renice

20.3.1 Information about measurement and sampling

20.4 Examples for renice

Chapter 21. The time and timex commands

21.1 time

21.1.1 Information about measurement and sampling

21.1.2 Examples for time

21.2 timex

21.2.1 Information about measurement and sampling

21.2.2 Examples for timex

Part 4 Memory-related performance tools

Chapter 22. The ipcs command

22.1 ipcs

22.1.1 Information about measurement and sampling

22.1.2 Examples for ipcs

Chapter 23. The rmss command

23.1 rmss

23.1.1 Information about measurement and sampling

23.1.2 Recommendations and precautions

23.1.3 Examples for rmss

Chapter 24. The svmon command

24.1 svmon

24.1.1 Information about measurement and sampling

24.1.2 Examples for svmon

Part 5 Disk I/O-related performance tools

Chapter 25. The filemon command

25.1 filemon

25.1.1 Information about measurement and sampling

25.1.2 Examples for filemon

Chapter 26. The fileplace command

26.1 fileplace

26.1.1 Information about measurement and sampling

26.1.2 Examples for fileplace

26.1.3 Analyzing the physical report

Chapter 27. The lslv, lspv, and lsvg commands

27.1 lslv

27.2 lspv

27.3 lsvg

27.4 Examples for lslv, lspv, and lsvg

27.4.1 Using lslv

27.4.2 Using lspv

27.4.3 Using lsvg

27.4.4 Acquiring more disk information

Chapter 28. The lvmstat command

28.1 lvmstat

28.1.1 Information about measurement and sampling

28.1.2 Examples for lvmstat

Part 6 Network-related performance tools

Chapter 29. atmstat, entstat, estat, fddistat, and tokstat commands

29.1 atmstat

29.1.1 Information about measurement and sampling

29.1.2 Examples for atmstat

29.2 entstat.

29.2.1 Information about measurement and sampling.

Notes:

"August 2003."

This edition applies to Version 5, Release 2 of AIX 5L.

Includes bibliographical references and index.

OCLC:

927360480