CI/CD

Posts on CI/CD performance, caching, observability, and shipping faster on GitHub Actions.

pricing landscape

Leo Lännenmäki

How we made GitHub Actions cache up to 6× faster

On GitHub Actions, a 1 GB actions/cache restore takes 14 seconds. On Avrea, the same workflow, same client: 2.9 seconds. Up to 6× faster across cache sizes from 1 KB to 1 GB, with 3× tighter variance.

Leo Lännenmäki

Benchmark: Linux kernel builds 3-68x faster on Avrea than GitHub Actions

On GitHub Actions, a Linux kernel build takes 27 minutes 23 seconds. On Avrea, the same build, with the same two vCPUs: 9 minutes 3 seconds, 24 seconds with a warm cache.

Leo Lännenmäki

Benchmark: Ghostty builds 3-27x faster on Avrea than GitHub Actions

10m 27s on GitHub Actions. 3m 33s on Avrea without cache. 23 seconds with a warm Nix binary cache. That's 2.9x from the hardware, 27x once caching kicks in.