addition of ZOWE MSU/MIPS usage query to ZOWE FAQ.

[mohit28290]

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Enhancement to ZOWE doc FAQs, As many customers inquired about MSU consumption for ZOWE.

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Q: MSU and MIPS consumed by ZOWE started task? A: Use the below formula to calculate MSU and MIPS.

CP: the number of processors PCI: Processor Capacity Index MSU: the maximum MSU capacity for the machine LSPR: IBM Large System Programming Reference

Converting CPU seconds to MSU

MSUfactor = MSU/CP/3600

MSUs average over one hour= "MSUfactor * no. of CPU seconds per hour" used by the product.

Converting CPU seconds to MIPS

For MIPS the PCI value is used from LSPR

MIPSfactor = PCI/CP/3600 MIPS average over one hour = "MIPSfactor * no. of CPU seconds per hour"

Converting CPU seconds to 4HRA MSU

4HRA_MSUFactor = MSU / CP / 3600 / 4 4HRA_MSUs average over one hour = "4HRA_MSUfactor * no. of CPU seconds average for 4 hrs" used by the product.

e.g. CP: the number of processors = 4 MSU: the maximum MSU capacity for the machine =727

4HRA_MSUFactor = 727 / 4/ 3600 / 4 = 0.01262 4HRA_MSUs average over one hour= 0.01262 * 70s = 0.88 MSUs

A system with a 70sec average of CPU time per 4 hours approx is consuming 0.88 MSUs per hour out of a total 727 MSU capacity.

Related doc pages

https://docs.zowe.org/stable/getting-started/zowe_faq

Additional context