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Presentation: “Quantum” Performance Effects: Beyond The Core

Track: Bare Knuckle Performance

Location: Pacific LMNO

Duration: 1:40pm - 2:30pm

Day of week: Tuesday

Level: Intermediate - Advanced

Persona: Developer

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Abstract

CPU microarchitecture is hidden from developers by compilers, virtual machines, etc. Should developers know everything about CPU microarchitecture? It looks like learning quantum mechanics for cooking. Recently we heard how some microarchitecture features could lead to security breaches like Spectre/Meltdown. In this session, we won't talk about vulnerabilities. We will talk how (and how big) CPU microarchitecture details may have an influence on applications performance. Could it be visible by end-users? How to avoid misjudgment when we estimate our code performance? CPU is huge (not in size) that is why the talk is limited to those parts which located out of computational core (mostly caches and memory access).

Speaker: Sergey Kuksenko

Java Performance Engineer @Oracle

Sergey works as Java Performance Engineer at Oracle. His primary goal is making Oracle JVM faster digging into JVM runtime, JIT compilers, class libraries and etc. His favorite area is an interaction of Java with modern hardware what he is doing since 2005 when he worked at Intel in Apache Harmony Performance team.

Find Sergey Kuksenko at

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