Lex Fridman · Shocking performance boost of assembly code: ~100x faster than C code | Lex Fridman Podcast

1. 1. Assembly code can be dramatically faster than C, with examples showing 62x performance improvements.
2. 2. VLC and FFmpeg achieve broad operating system compatibility through deep low-level optimization.
3. 3. The AV1 video decoder "David" uses an unprecedented 240,000 lines of handwritten assembly code.
4. 4. Extreme optimization includes custom function calling conventions, bypassing operating system standards.
5. 5. As hardware improvements slow, low-level optimization is crucial for extracting maximum performance.