TIL the order of LLVM passes *really* matters. Running opt -O3 twice has tripled runtime perf, so the defaults don't suit my BF compiler.
miniblog.
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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've never seen a language add a full-featured REPL later in its life. It's incredibly hard to add "update function definition" interactively.
Clojure is an interesting case. It was developed with a REPL in mind, but the JVM was not. Perhaps the VM matters less here?
Line-based diffs are easily muddled by wrapping/unwrapping with delimiters.
If whitespace matters, you show the indented lines, and if whitespace doesn't matter, you don't know which } to match!
Compare GitHub with difftastic here.
