Evolution of the Samsung Exynos CPU Microarchitecture

The Samsung Exynos family of cores are highperformance "big" processors developed at the Samsung Austin Research & Design Center (SARC) starting in late 2011. This paper discusses selected aspects of the microarchitecture of these cores - specifically perceptron-based branch prediction...

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Bibliographic Details
Published in2020 ACM/IEEE 47th Annual International Symposium on Computer Architecture (ISCA) pp. 40 - 51
Main Authors Grayson, Brian, Rupley, Jeff, Zuraski, Gerald Zuraski, Quinnell, Eric, Jimenez, Daniel A., Nakra, Tarun, Kitchin, Paul, Hensley, Ryan, Brekelbaum, Edward, Sinha, Vikas, Ghiya, Ankit
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2020
Subjects
branch prediction
Computer architecture
Microarchitecture
microprocessor
Microprocessors
Optimization
Parallel processing
Prediction algorithms
Prefetching
Program processors
Protection
Security
superscalar
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Summary:The Samsung Exynos family of cores are highperformance "big" processors developed at the Samsung Austin Research & Design Center (SARC) starting in late 2011. This paper discusses selected aspects of the microarchitecture of these cores - specifically perceptron-based branch prediction, Spectre v2 security enhancements, micro-operation cache algorithms, prefetcher advancements, and memory latency optimizations. Each micro-architecture item evolved over time, both as part of continuous yearly improvement, and in reaction to changing mobile workloads.
DOI:10.1109/ISCA45697.2020.00015