181: Memory Management

Intro topic: Video Game Prices

News/Links:

• Step one: Jump in the Lava - Abyssoft
  • https://youtu.be/WdadpHLAfdA?si=oXYnhB0EdkR_RaPE
• Scalable world models for continuous control
  • https://www.tdmpc2.com/
• Clever code is probably the worst code you could write - Engineer’s Codex
  • https://read.engineerscodex.com/p/clever-code-is-probably-the-worst
• A new, open source text-to-speech model called Dia has arrived to challenge ElevenLabs, OpenAI and more
  • https://venturebeat.com/ai/a-new-open-source-text-to-speech-model-called-dia-has-arrived-to-challenge-elevenlabs-openai-and-more/

Book of the Show

• Patrick
  • The Muscle Ladder - Jeff Nippard
    • https://amzn.to/44Dznsz
• Jason
  • Metaphysics of War
    • https://amzn.to/4jMjvZ5

Patreon Plug https://www.patreon.com/programmingthrowdown?ty=h

Tool of the Show

• Patrick
  • Pokemon Trading Card Game Pocket
• Jason
  • Phi-4
    • https://huggingface.co/spaces/microsoft/phi-4-multimodal

Topic: Memory Management

• Motivation
  • Avoid thrashing / crashes
  • Allocate resources efficiently
  • Keep high uptime
• Where
  • OS Level
    • Heap management
    • Virtual Memory
  • Language/Compiler Level
    • Cpp
    • Garbage collection
    • Ownership
• Tools
  • Instrumentation
    • Export to Datadog / Grafana
  • Python: psutil & tracemalloc
  • Valgrind
• What to do when your program uses too much memory?
  • Reduce data sizes
    • Compression
    • References
    • Lazy initializer
    • Generators & Back Pressure
  • Ring buffers
  • Arena allocators
  • Disk based caching