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Using system monitor output to improve performance

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The items measured here are but a few of the possible uses of the system monitor. To date, concentration has been on items of interest to the user of the data processing system. Even here, the measurements taken have been those that concern overall system performance, Once these adjustments are made, attention will probably be turned to more detailed measurements, such as an interruption-handling routine, channel contention, a critical subroutine, and other small but, important aspects of the system. Also, the monitor may be used in the future to acquire data to assist the designers of new equipment, an area where monitors have proved useful in the past.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

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IBM Systems Journal  (Volume:8 ,  Issue: 4 )