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System Performance Tuning, 2nd Edition (O'Reilly System Administration) Review by anonymous
Good when it's right, but be careful...
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.