Tag

Benchmarks

3 pieces

High-resolution macro shot of a computer CPU chip with gold pins against a blue background.

Go's Portable SIMD Beat Plain Go by 10x on Our M4 and Lost to It When Emulated

Go 1.27's experimental simd package ran a float32 dot product 10.6x faster than a plain loop on our M4 Pro. Forced into emulation, the same code ran 1.9x slower than the loop it replaced.

Sep 28, 20266 min

Vintage computer backup tape drive with open tray, showcasing retro technology.

RepoSep 8, 2026

bzip3 Beat xz on Size and Speed, Then We Found What Its Release Notes Left Out

bzip3 hit the Hacker News front page with 412 points and shipped version 1.5.4 six hours later. We built it, benchmarked it against xz and zstd on 100MB of Wikipedia text, and reproduced the silent data loss bug the release quietly fixed.

Sep 8, 20266 min

A large flock of sheep grazing peacefully on a lush green field under a cloudy sky.

RepoSep 1, 2026

We Benchmarked Ghostty, Herdr and Apple's Terminal and the Multiplexer Won

Herdr is not a terminal, it is a multiplexer that runs inside one. Across 181 runs it consumed 4.4MB of output in 0.059s, faster than the Ghostty window hosting it.

Sep 1, 20266 min