Module 8 - Memory Allocators 2 (Shah) - 2026-Sep-23
Overview
In this module we continue discussing memory allocators.
- Dynamic Memory Allocation
- Internal and External Fragmentation
- First-fit, next-fit, and best-fit
- Local and Global Allocators
Key Resources/Readings
The following resources are listed (roughly) in order to supplement this lecture. You may choose to read 1 or more of these before/during/after the lecture to fully immerse into the material.
- code::dive 2017 – John Lakos – Local (“arena”) memory allocator (Nice talk with benchmarks and also connects caching with allocators)
- DConf 2019 Day 1 Keynote: Allocating Memory with the D Programming Language -- Walter Bright (Discusses many trade-offs of different memory allocation strategies. Video and slides here: https://dconf.org/2019/talks/bright.html)
- DConf '23 -- Stack Memory is Awesome! -- Dennis Korpel (Implementation of arena allocators)
- DConf '24 | Avoid the GC in 80 Lines | Dennis Korpel (D perspective of multiple management styles)
Slides and Module Content
Please note: Your in-class activity is graded. Your first attempt will be graded. You can use your notes and slides if you like. You have 1 week from the date of this module opening to complete the in-class activity. In-class activities are completed individually.
Note: Audio/Video recordings are made in a best effort in case you have to miss class or you would otherwise like to re-watch a portion of lecture. Occassional recording errors (e.g. missing sound, corrupted video, etc.) may occur, and I apologize in advance if a recording is not able to be made available. That said, it is the expectation that you are coming to class in-person. :)
Audio/Video Recording
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