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Rating: 
Summary: Good when it's right, but be careful...
Review: I had looked at the first edition of this book many times, but not bought it because of the age of the information. At long last--a second edition! Completely updated, and current!Many parts of this book are top-notch. It does an excellent job of drilling down the process tree, caching processes (memory and disk, and the structures of both), and bottlenecks such as latency. I learned a lot, and I've got a fair background in performance tuning. However... The "Solaris and Linux" part is a joke--they could have eliminated all of the Linux tuning instruction/reference, and the book might have lost 15 pages. Clearly the authors aren't nearly as familiar with Linux as they are with Solaris. Not a big deal, but it's misleadingly marketed. Furthermore, there are many MANY mistakes in the text--mistakes that, if read as given, run absolutely counter to the way the system behaves. Weren't there ANY proofreaders for this book? Also, the sections on disk performance and reliability (i.e. RAID arrays) were confusing and inconsistent. This is a subject I know and know well, and can only assume that the authors simply don't 'get' some of the stuff they're trying to present. Buried in all of these mistakes and shortcomings is a 5-star book just screaming to get out. If they fixed the things I've mentioned, this would be THE standard reference--the performance tuning version of Evi Nemeth (et. al)'s Unix sysadmin handbook. As it is, it's very useful, but get a second reference on anything you can't puzzle out--you might be right.
Rating:
Summary: mail rates for shipping???
Review: I orderd this book and 3 others via amazon.com - from 3 different vendors. All orders arrived Dec 18 and Dec 22 except for this one from "alltel.net"
per someone in support - the problem is the USPS
I have been ordering products via the web - all shipped ONLY USPS - and have not experienced any significant delays - even during this Christmas holiday period.
I suspect that the allte.net needs to look at the shipping prices they pay vs. what their competitors pay and the results of shipping in a timely fashion. The customer is ultimately paying the price for shipping anyway.
Rating: 
Summary: What the man pages forgot to say.
Review: It is generic and only dated to the extent that there is more information now. The concepts and methods are still sound
Want to know about SAR?
When you time an application do you want to know what the user-state CPU time and systemstate CPU time means?
Many of the pertinent questions and answers to System Performance Tuning are in this book. The chapters are:
* Introduction to System Performance
* Monitoring System Activity
* Managing the Workload
* Memory Performance
* Disk Performance Issues
* Network Performance
* Terminal Performance
* Kernel Configuration
* Appendix A Real-time Processes
* Appendix B A Performance Tuning Strategy
This book has helped point to the pertinent manuals on several flavors of UNIX.
Rating: 
Summary: A comprehensive, "user friendly" technical sourcebook
Review: Now in a newly revised and expanded second edition, System Performance Tuning by Gian-Paolo D. Musumeci (Research Engineer, Performance and Availability Engineering Group, Sun Microsystems) and Mike Loukides (Editor, O'Reilly & Associates) is a comprehensive, "user friendly", technical sourcebook, guide, and reference for UNIX system administrators who seek optimum speed and overall performance. Tacking complex problems for which there are no simple solutions, individual chapters address workflow management, disk arrays, code tuning, and much more. A first-class resource, System Performance Tuning is an invaluable and highly recommended tutorial and continuing reference work.
Rating:
Summary: Previous revies refer to an older version
Review: Please note that the previous reviews refer to the first edition of this book. This is the second edition, which was released in February 2002 and is up-to-date.
Rating:
Summary: An excellent guide to system performance and architecture
Review: The second edition brings a well known classic in system administration up to date, focusing on both the theory and principals governing system performance, along with a set of excellent practical examples that can be applied to see immediate results. The book is great for both introductory and advanced administrators, and covers the full gamut of performance, from code to disk to CPU. What is especially refreshing is the focus on practical performance tuning, helping to make tuning you do have maximal benefit for your applications.
Rating:
Summary: What the man pages forgot to say.
Review: This is really a five star book. However it is generic and only dated to the extent that there is more information now. The concepts and methoods are still sound
Want to know about SAR?
When you time an application do you want to know what the user-state CPU time and systemstate CPU time means?
Many of the pertinent questions and answers to System Performance Tuning are in this book. The chapters are: · Introduction to System Performance
· Monitoring System Activity
· Managing the Workload
· Memory Performance
· Disk Performance Issues
· Network Performance
· Terminal Performance
· Kernel Configuration
· Appendix A Real-time Processes
· Appendix B A Performance Tuning Strategy This book has helped point to the pertinent manuals on several flavors of UNIX.
Rating:
Summary: An excellent guide to system performance and architecture
Review: This material is extremely outdated. (Look at the pub. date) However, it teaches some good fundamental concepts that can be used by an experienced UNIX SysAdmin. There are plenty of recent books that cover material better.
Rating: 
Summary: Good but outdated
Review: This material is extremely outdated. (Look at the pub. date) However, it teaches some good fundamental concepts that can be used by an experienced UNIX SysAdmin. There are plenty of recent books that cover material better.
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