CppCon 2015: Chandler Carruth "Tuning C++: Benchmarks, and CPUs, and Compilers! Oh My!"

CppCon · 188.2K views · 2015-09-27 · 1:29:54

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Overview

Chandler Carruth walks through tuning C++ performance, from writing benchmarks to analyzing results on real CPUs and compilers. It focuses on small-scale problems such as loop kernels, data structures and algorithms, and on keeping compilers from optimizing benchmarks away.

On Hacker News

HN recommends it as an eye-opening primer on benchmarking and performance analysis, especially for people who have not benchmarked on Linux.

Recommended by 3 HN people across 3 months · HN mentions 2015–2020

Topics

Software performance & optimization C, C++, Rust, Go & systems languages

What people said

humanrebar · 2016-05 · Strong recommendation
Here's a few: - "Tuning C++: Benchmarks, and CPUs, and Compilers! Oh My!" [VIDEO] - "Understanding Compiler Optimization" [LINK] - "Optimizing the Emergent Structures of C++" [LINK] - "Efficiency with Algorithms" [LINK] The first one is really good if you've never benchmarked anything in a Linux environment. Or if you otherwise want to learn how to investigate how C++ gets turned into machine code.
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thomashusa · 2020-03 · Recommendation
There is a very interesting talk [1] by Chandler Carruth that I stumbled upon last weekend that is very much related to this [1] [VIDEO]
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kbenson · 2015-10 · Recommendation
Interestingly, there's quite a bit that's needed to ensure you bypass some compiler optimizations. Here's an ey-opening (for me) talk[1] on benchmarking C++ and compilers which touched on it. 1: [VIDEO]
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Sources

Video by CppCon, played through YouTube.

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