Comment by jswny

2 months ago

I wish this was faster, in my tests it’s about 200ms startup consistently on my M4 MacBook. Otherwise very cool

2 comments

jswny

Interesting! That seems unexpected, for a minimal hello-world program I'm averaging 14ms after the first execution:

```

$ echo 'fn main() { println!("hello, world!") }' > file.rs; hyperfine --warmup 1 'cargo +nightly -Zscript file.rs'

Benchmark 1: cargo +nightly -Zscript file.rs

  Time (mean ± σ):      14.0 ms ±   1.0 ms    [User: 7.7 ms, System: 9.7 ms]

  Range (min … max):    12.2 ms …  17.5 ms    203 runs

```

jswny 2 months ago

Ah I think it’s because I was testing with an external library in the top level TOML metadata