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?
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It's really satisfying to use a profiler for the first time on a project. I always find a big performance win with only a small code change.
It's never the code that I expected to be slow, however!
New version of difftastic is out!
* Fixed a nasty crash that was relatively common
* Minor display and performance fixes
https://github.com/Wilfred/difftastic/releases/tag/0.60.0
It's always seemed odd to me that the Rust stdlib is so lean (no random numbers, regex, HTTP) yet clippy is so big (correctness, performance, style preferences, even 'too many arguments').
Maybe it's because cargo is mature but clippy doesn't have an extension ecosystem?