Origin2000 and Onyx2® Performance Tuning and Optimization Guide

Document Number: 007-3430-003


Originally written by David Cortesi, based on the first edition by Jeff Fier; updated by Jean Wilson and Julie Boney

Illustrated by Dan Young

Production by Karen Jacobson

Illustrations updated by Chrystie Danzer

Original engineering contributions by David Cortesi, Leo Dagum, Wesley Jones, Eric Salo, Igor Zacharov, Marco Zagha

Special engineering contributions by Jeff Fier


Cover Design By Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications.


© 2000-2001, Silicon Graphics, Inc. All rights reserved; provided portions may be copyright in third parties, as indicated elsewhere herein. No permission is granted to copy, distribute, or create derivative works from the contents of this electronic documentation in any manner, in whole or in part, without the prior written permission of Silicon Graphics, Inc.


The electronic (software) version of this document was developed at private expense; if acquired under an agreement with the USA government or any contractor thereto, it is acquired as "commercial computer software" subject to the provisions of its applicable license agreement, as specified in (a) 48 CFR 12.212 of the FAR; or, if acquired for Department of Defense units, (b) 48 CFR 227-7202 of the DoD FAR Supplement; or sections succeeding thereto. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy 2E, Mountain View, CA 94043-1351.


Silicon Graphics, Challenge, Indy, IRIX, O2, Onyx, and Onyx2 are registered trademarks and SGI, the SGI logo, InfiniteReality, NUMAlink, Origin, Power Challenge, and XFS are trademarks of Silicon Graphics, Inc. POSIX is a trademark of IEEE. MIPS, R4000, R4400, R5000, R8000, R10000, R12000, and R14000 are registered trademarks and MIPSpro is a trademark of MIPS Technologies, Inc. X Window System is a trademark of X Consortium, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

Record of Revision

Revision 001June 1998 
Initial Rev

Revision 002November 1998 

Revision 003July 2001