34913: How Busy Is That Mainframe, Really?
Project and Program:
Core Platform,
Performance and Capacity Management,
Operations Management z/OS Systems Programming
Tags:
Proceedings,
SHARE DC 2025,
2025
It’s 9:03 AM, do you know how busy your mainframe is? No points for know how
busy it was on average for the 15 minutes starting at 9:00! Your 15-minute
performance intervals may be sufficient for many use cases, but are likely
insufficient for discovering and diagnosing performance problems that last for
just a few minutes or less. In this session, Scott Chapman will discuss the SMF
98 and 99 data that lets you see CPU usage on a sub-minute basis as well as the
practical utilization of such data.
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