Millrace · Third quarter

Builds got faster because we stopped repeating work.

Millrace caches every step that has not changed since the last run. Teams that turned it on for the whole pipeline spend less time waiting, and almost none of the failures that are left are ours.

How the cache works

  • Builds a day

    18,240

    14%up on last quarter, an improvement

  • Median build time

    3m 12s

    22%down on last quarter, an improvement

  • Cache hit rate

    87%

    9%up on last quarter, an improvement

  • Builds failed by us

    0.4%

    35%down on last quarter, an improvement

Sparklines show the last twelve weeks, to the end of September 2026.