The measurements behind the product.

Docker without layer hits

2.9×

Faster Docker builds without layer hits

Across three Mastodon source changes on AMD64 and ARM64, ccache and persistent mounts averaged 2m 39s, compared with 7m 34s for cache:false.

Every Docker instruction ran · six paired builds.

Docker

11–60%

Faster Docker builds

BoringCache cut measured build time by 11–60% across 6 public Docker comparisons with actions/cache.

Bazel

28%

Faster Bazel builds than BuildBuddy

BoringCache finished the same-source Bazel benchmark in 260s, compared with 360s for BuildBuddy.

Cargo + sccache

95.8%

Compiler results reused

1,333 of 1,391 compiler requests hit the shared cache in a Deno build.

Cargo target cache also restored.

ccache

77%

Compiler results reused

447 of 578 compiler requests hit the shared cache in an OBS Studio build.

sccache · macOS ARM64

5 ms

Average sccache read hit

sccache recorded 1,287 cache hits through BoringCache in this macOS ARM64 build.

September 22, 2026 · sccache 0.17.0 · excludes proxy startup and cache misses.