Engineering notes on faster pytest: collection overhead, plugin compatibility, and CI time saved honestly.https://rpytest.neullabs.com/en-ushttps://rpytest.neullabs.com/blog/measuring-ci-minutes-honestly/https://rpytest.neullabs.com/blog/measuring-ci-minutes-honestly/It is easy to publish a 'we are 3x faster' number. It is harder to publish one that survives a skeptical reading. Here is the methodology we use for rpytest's CI benchmarks, the mistakes we used to make, and how to measure your own.Thu, 04 Jun 2026 00:00:00 GMThttps://rpytest.neullabs.com/blog/drop-in-plugin-compatibility/https://rpytest.neullabs.com/blog/drop-in-plugin-compatibility/Every faster-pytest tool says 'drop-in compatible.' Most break somewhere. This post lays out where the breakage usually happens, how we built rpytest to host real pytest so most plugins just work, and what --verify-dropin actually checks.Thu, 28 May 2026 00:00:00 GMThttps://rpytest.neullabs.com/blog/pytest-collection-phase-cost/https://rpytest.neullabs.com/blog/pytest-collection-phase-cost/Collection is the phase between 'pytest started' and 'pytest ran a test.' It is also the phase most people are surprised to discover dominates their CLI wall clock. Here is what it actually does, why it is slow, and what removing it looks like.Thu, 21 May 2026 00:00:00 GMT