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Björn Andrist

Freelance Software Developer and Co-Author of C++ High Performance

Björn Andrist is a freelance software consultant currently focusing on audio applications.
For more than 10 years, he has been working professionally with C++ in projects ranging from Unix server applications to real-time audio applications on desktop and mobile. In the past, he has also taught courses in algorithms and data structures, concurrent programming, and programming methodologies. Björn holds a BS in computer engineering and an MS in computer science from KTH Royal Institute of Technology. He is the author of the book “C++ High Performance”.

Keep it Small

Apr 09, 2020

This talk is about using memory efficiently. It will begin with a high-level overview of how memory is managed by hardware and the operating system. Memory hierarchies, cache lines, virtual memory, memory managers, and the stack will be briefly covered. There will also be an introduction to C++ data structure alignment.

Next we will look at strategies for avoiding small and frequent dynamic memory allocations by using the stack. This will be demonstrated by exploring some design choices of the libc++ implementation of std::string.

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