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Appendix B. Getting Data You Want 97
Other Requirements
If you are running in a PR/SM or MDF environment, the Extractor CPU sampler must be
active for the CMF Type 79 API to report on system CPU utilization. If the CPU sampler is not
active in a PR/SM environment, the API returns a value of -1 (x'FFFFFFFF') in field
R793CPUU instead of CPU utilization data.