Tuning SAS Applications in the OS/390 and z/OS Environments


Former Title:Tuning SAS Applications in the OS/390 Environment

Author: Michael A. Raithel

Publisher: SAS Press

For seasoned veterans of the IBM mainframe environment, this is a book of techniques for squeezing better performance out of a mainframe computer running SAS applications. Much of the book focuses on using SAS features efficiently with the distinctive features of the mainframe.


2 Paperback (2003)

2 Paperback

Year: 2003

ISBN: 1-59047-337-X

Pages: 222

Publisher’s list price: 48.95


  • 1. Performance, Efficiency, and Tuning
  • 2. OS/390 Performance Metrics
  • 3. Sources of SAS System Performance Information
  • 4. How SAS Data Library Block Size Affects Performance
  • 5. SAS Data Set Performance Tools
  • 6. Indexes
  • 7. Efficient Processing of Sequential Data Sets on DASD
  • 8. Efficient Processing of Tape Data Sets
  • 9. Processing VSAM Data Sets
  • 10. The Stored Program Facility
  • 11. Exploiting Hiperspaces
  • 12. OS/390 Environmental Factors Affecting Performance

From the back cover

Need to improve the performance of your SAS applications?

Seeking comprehensive information on how SAS integrates with OS/390 and z/OS?

Help has arrived!

New features in this second edition include:

  • the many Version 8 and version 9 enhancements to SAS running OS/390 and z/OS.
  • new sources of performance information such as the SAS SMF exit.
  • a detailed explanation of index centiles — what they are and how they can be used. New information explains how SAS programmers can specify that a particular index be used or that no index be used. You will also find updated information on exploiting indexes through WHERE clauses and BY statements.
  • updated information on efficiently processing large data sets stored on tape.
  • details on the new SASFILE statement. Programmers can learn how to exploit the SASFILE statement to hold an entire SAS data set in memory and avoid costly I/O’s.
  • new features of the CONTENTS procedure that provide performance information.

If you are a new or experienced SAS user trying to learn more about OS/390 concepts or searching for great tuning tips, this book was written for you!