HackerTube / Video
New computers don't speed up old code
Matthias random stuff
Matthias Wandel tests old and new code on a range of PCs, including a new mini PC, to measure how much faster modern hardware really is. He also shows optimization techniques such as branchless code, with benchmark programs on GitHub.
Used as evidence that CPU speed for branchy, dependent code has improved only modestly in 15-20 years, so software optimization matters.
4 Hacker News mentions · 2025–2025