Explore lambda performance in Java with Sergey Kuksenko in this 44-minute conference talk. Dive into various aspects of lambda expressions, including linkage, non-capture and capture scenarios, invocation, inlining, and scalar replacement. Learn about benchmarking techniques, analyze assembly code, and understand the main contributors to lambda performance. Compare lazy and eager evaluation strategies, and gain insights into potential pitfalls of microbenchmarks. Discover how lambda chains and anonymous chains affect performance, and examine the impact of lambda's slow warm-up on time-to-performance metrics.
Overview
Syllabus
Intro
Lambda: performance
Lambda: SUT
Linkage: How?
Linkage: What?
Linkage: lambda chain
Linkage: anonymous chain
Linkage: benchmark
Linkage: results (cold)
Linkage: Main contributors (lambda)
Non-capture lambda: benchmarks
Capture: results
Capture: exploring asm
Capture: benchmark
Capture: chain results
Capture: beware of microbenchmarks
Capture: LF's inline tree
Capture: lambda slow warmup
Capture: time-to-performance
Invocation: performance
Inline: benchmark
Scalar replacement: benchmark
Scalar replacement: results
Scalar replacement: asm
Lazy vs Eager: benchmark
Lazy vs Eager: results
Taught by
Java
