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.
Speaker
Luiz Carlos Orsoni
zOS Specialist – Systems Programming
IBM
Mairiporã, São Paulo Brazil
Track
Mainframe Modernized
IMPACT Session Video and Q&A:
To view the video you must have a CMG membership. Sign up today!For existing members sign in here.
In his talk on "Impact of Sentiment Analysis on Improving Fake News Detection," Sanjaikanth E. Vadakkethil Somanathan Pillai addresses a critical issue exacerbated...
Find out moreSoftware for Humanity is a thought-provoking and immersive event that brings together software engineers, developers,...
Find out moreWhat is the traditional approach to performance monitoring on the Mainframe? Industry professionals know that...
Find out more