1BRC in Zig⚡

[candrewlee14]

I wanted a piece of the fun, so I decided to implement this in Zig: https://github.com/candrewlee14/1brc-zig.

With a warm cache, I get this time on my AMD Ryzen 7 5800H:

Executed in    5.76 secs    fish           external
   usr time   37.81 secs  129.00 micros   37.81 secs
   sys time   10.11 secs  526.00 micros   10.11 secs

On my machine, it's close but slightly slower than @dannyvankooten's C submission.

❯ hyperfine --warmup 1 "./zig-out/bin/1brc-zig" "./a.out measurements.txt"                                                                                                                                                                                            (base)
Benchmark 1: ./zig-out/bin/1brc-zig
  Time (mean ± σ):      5.946 s ±  0.108 s    [User: 43.808 s, System: 12.300 s]
  Range (min … max):    5.802 s …  6.082 s    10 runs

Benchmark 2: ./a.out measurements.txt
  Time (mean ± σ):      5.671 s ±  0.102 s    [User: 33.277 s, System: 12.227 s]
  Range (min … max):    5.468 s …  5.775 s    10 runs

Summary
  './a.out measurements.txt' ran
    1.05 ± 0.03 times faster than './zig-out/bin/1brc-zig'