IMPACT2021 | z14 and z15 Pipelines - Luiz Carlos Orsoni - Computer Measurement Group

IMPACT2021 | z14 and z15 Pipelines – Luiz Carlos Orsoni

IMPACT2021 | SMF & RMF; how to use it, make it effective, and what to do with it – Greg Caliri
January 29, 2021
IMPACT2021 | Python Performance And Other Non-Functional Testing Techniques – Steven Lott
January 29, 2021

IMPACT2021 | z14 and z15 Pipelines – Luiz Carlos Orsoni

The z13 can execute about 12% more [1.695/1.514] Instructions than the zEC12, although its Cycle Time is about 9% higher [5/5,5 GHz], but its Execution Units have almost 2x of Circuits, compared to the zEC12. With almost the same quantity of Circuits than the z14, and having the same Cycle Time [5,2 GHz], how can a z15 execute about 10% more [2.055/1.870] Instructions? This Presentation will show some of the “internal details” of z15 Cores [the Fetch, Parsing, Decode, Issue Out of Order of the Instructions to the various Execution Units and Removal In Order at the Completion Queues], based on the z15 Technical Guide and z15 Technical Introduction. As always happen on CMGs, we invite you all to Optimize Codes.

Luiz Carlos Orsoni
zOS Specialist – Systems Programming
Mairiporã, São Paulo Brazil

Mainframe Modernized

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