A founder journey: from building Bazel to giving it super powers
summary
Open-source Bazel plus EngFlow become a remote execution platform that adds remote persistent workers and a UI that loads 100,000 targets and an action viewer, plus invocation analyzer and end-to-end profiles. The service is load tested to 8,000 actions/sec per scheduler per pool and scales from hundreds to 1,000,000 core clusters. Customers report at least 20%+ cloud savings with some workloads up to 50% and build speedups of 8–64×; a full-region load test showed a ~3× cost increase not 10×.
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