Explore hardware efficiency in C++ through this CppCon 2022 conference talk. Delve into CPU and memory bottlenecks, learning to identify and overcome these limitations in your code. Gain insights on recognizing memory-bound versus CPU-bound code and discover strategies for optimization. Examine instruction level parallelism and its impact on program performance, with practical examples provided in C++. Benefit from the expertise of Ivica Bogosavljevic, a senior software engineer specializing in application performance improvement, as he shares techniques to enhance C/C++ program speed through better algorithms, hardware utilization, and effective use of standard libraries, programming languages, and operating systems.
Introduction to Hardware Efficiency in C++ - CppCon 2022
Overview
Syllabus
Intro
Making software fast
Better Usage of Hardware Resources
Computationally intensive or memory intensive?
Fixing memory intensive codes - SOA
Fixing memory intensive codes (3)
Introduction to vectorization
Prerequisites for autovectorization
Fixes for vectorization problems
When do data cache misses typically happen?
Example: Minimum and maximum in array
Why is perfect memory layout the fastest?
Experiment with class size and member layout
Taught by
CppCon
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