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Optimizing AIX 5L performance: Monitoring your CPU, Part 3
Part 3 of this series focuses on arguably the least understood area of Central Processing Unit (CPU) performance tuning: controlling thread usage and CPU binding. This article addresses key tools and utilities you can use to analyze threads and administrate your processes.
Also available in: Chinese   Russian  
Articles 15 May 2007
Optimizing AIX 5L performance: Tuning network performance, Part 3
This three-part series on AIX (R) networking focuses on the challenges of optimizing network performance. Part 1 provided a networking overview and also discussed the tools you need to monitor your hardware, including netstat, netpmon, entstat, and nmon. Part 2 discussed monitoring and tuning NFS subsystems. This final part, Part 3, shows you how to monitor network packets. The series also offers best practices for network I/O performance tuning.
Also available in: Chinese  
Articles 29 Jan 2008
Optimizing AIX 5L performance: Tuning network performance, Part 2
This three-part series on AIX (R) networking focuses on the challenges of optimizing network performance. Part 1provided a networking overview and also discussed the tools you need to monitor your hardware, including netstat, netpmon, entstat, and nmon. Part 2 focuses on tuning NFS. You'll learn about monitoring utilities such as nfsstat and nmon, and you'll also tune with nfso. The series also offers best practices for network I/O performance tuning.
Also available in: Chinese  
Articles 22 Jan 2008
Optimizing AIX 5L performance: Tuning network performance, Part 1
This three-part series on AIX(R) networking focuses on the challenges of optimizing network performance. In the first installment, you’ll review some best practices for network configuration, and utilize those practices for efficient monitoring of your hardware by taking advantage of network tools such as netstat, netpmon, entstat, and nmon. You’ll also examine certain tools used to look at your interfaces to see how to configure them.
Also available in: Chinese   Russian  
Articles 20 Nov 2007
Optimizing AIX 5L performance: Tuning your memory settings, Part 2
Use ps, sar, svmon, and vmstat to monitor memory usage and analyze the results. This three-part series focuses on the various aspects of memory management and tuning on IBM System p(TM) servers running AIX(R). Part 1 provided an overview of memory on AIX, including a discussion of virtual memory and the Virtual Memory Manager (VMM). It also drilled down into the tuning parameters and outlined recent improvements in AIX Version 5.3 with respect to memory management. Part 2 focuses on the detail of actual memory subsystem monitoring and discusses how to analyze the results. Part 3 deals specifically on swap space and how best to tune your VMM settings to provide for optimum swap space configuration and performance. Throughout this series, I'll also cover some of the best practices of memory performance tuning and monitoring.
Also available in: Chinese   Russian  
Articles 14 Jun 2007
Optimizing AIX 5L performance: Tuning your memory settings, Part 1
This three-part series on memory tuning dives right into tuning parameters, focusing on the many challenges and the various best practices of optimizing memory performance, and it also discusses some improvements in AIX(R) Version 5.3. While memory tuning might be more difficult to implement than Central Processing Unit (CPU) tuning, it certainly is no less important. You can do more to tune memory on an AIX server than on any other subsystem. Changing some memory parameters on your system can increase performance dramatically, particularly when these parameters are not optimized for the environment which you are running. Part 1 of this series provides an overview of memory on AIX, including a discussion of virtual memory and the Virtual Memory Manager (VMM).
Also available in: Chinese   Russian  
Articles 15 May 2007
Optimizing AIX 5L performance: Tuning your memory settings, Part 3
Get an introduction to swap (paging) space, learn how to configure and administer it, capture statistics, and tune your Virtual Memory Manager (VMM) settings to provide for optimum swap (paging) space configuration and performance.
Also available in: Chinese   Russian  
Articles 19 Jun 2007
Optimizing AIX 5L performance: Monitoring your CPU, Part 2
Identify which AIX(R) tools to use to monitor your Central Processing Unit (CPU) for a given situation and find out why some tools might be better than others. Part 1 of this series discussed the tuning methodology and the importance of having procedures for CPU performance tuning. It also briefly introduced some performance tools to use as a part of your tuning repertories, gave an overview of the POWER CPU, and discussed how the architectural improvements of the evolution of the POWER Chip have contributed to the hardware improvements of the System p(TM) product line.
Also available in: Chinese   Russian  
Articles 24 Apr 2007
Optimizing AIX 5L performance: Monitoring your CPU, Part 1
Just when you thought it was going to be an ordinary day, you receive a phone call and hear the worst six words dreaded by most AIX(R) administrators. Which of course is, "Why is the system so slow?" If you have done your homework, the answer to that question is relatively simple.
Also available in: Chinese   Russian  
Articles 17 Apr 2007
Optimizing AIX 5L performance: Tuning disk performance, Part 3
Part 3 of this series covers how to improve overall file system performance, how to tune your systems with the ioo command, and how to use the filemon and fileplace utilities.
Also available in: Chinese   Russian  
Articles 09 Oct 2007
Optimizing AIX 5L performance: Tuning disk performance, Part 2
Discover how to use appropriate disk placement prior to creating your logical volumes to improve disk performance. Part 2 of this series focuses on monitoring your logical volumes and the commands and utilities (iostat, lvmstat, lslv, lspv, lsvg) used to analyze results.
Also available in: Chinese   Russian  
Articles 24 Jul 2007
Optimizing AIX 5L performance: Tuning disk performance, Part 1
Learn more about direct I/O, concurrent I/O, asynchronous I/O, and best practices for each method of I/O implementation. This three-part series on the AIX(R) disk and I/O subsystem focuses on the challenges of optimizing disk I/O performance. While disk tuning is arguably less exciting than CPU or memory tuning, it is a crucial component in optimizing server performance. In fact, partly because disk I/O is your weakest subsystem link, you can do more to improve disk I/O performance than on any other subsystem.
Also available in: Chinese   Russian  
Articles 10 Jul 2007
Optimizing AIX 7 operating system performance, Part 2: Monitoring logical volumes and analyzing the results
Discover how to use appropriate disk placement prior to creating your logical volumes to improve disk performance. These investigations are based on AIX 7 beta and updating information from the original AIX 5L version of this article. Part 2 of this series focuses on monitoring your logical volumes and the commands and utilities (iostat, lvmstat, lslv, lspv, lsvg) used to analyze results.
Also available in: Chinese  
Articles 19 Oct 2010
Optimizing AIX 7 memory performance: Part 3, Tuning swap space settings
Get an introduction to swap (paging) space, learn how to configure and administer it, capture statistics, and tune your Virtual Memory Manager (VMM) settings to provide for optimum swap (paging) space configuration and performance. With AIX 7, and the improvements for the POWER7 architecture, extracting the best performance out of your memory environment is critical. With the larger memory capacity and CPU cores, a better understanding of the VMM and your configuration will help you change your parameters to fit your requirements.
Also available in: Chinese  
Articles 16 Nov 2010
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