I used to think it odd that JITs rarely beat AOT because a JIT has more info. Turns out JITs can't afford powerful but slow optimisations.
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What are the most popular languages that have used an AST walker for their implementation?
I know Ruby used to do this, but there must be others.
(I'm interested in the lowest PL speed that users will tolerate if you have awesome features.)
It's so strange that we talk about languages being slow, and have done for years. Computer performance has increased so much in this time.
https://hbfs.wordpress.com/2009/11/10/is-python-slow/ (shared on HN in 2009) discusses Python being slow. My underpowered Thinkpad has 20x the single-threaded performance! https://www.cpubenchmark.net/compare/73vs3766/AMD-Athlon-64-4000+-vs-AMD-Ryzen-5-PRO-4650U
Maybe *relative* performance of languages matters more?
I'd heard the conventional wisdom that UX research states that mice are more efficient than keyboards, but turns out there's virtually no research on this!
https://danluu.com/keyboard-v-mouse/