Simulating thousands of timelines to catch P0 race conditions before they ship
cto_junior · x · 2026-09-18
A developer shares a hands-on technique for hunting concurrency bugs: build a small simulation of your system — a "micro universe" for the codebase — then simulate thousands of timelines to find the one where two innocent writes combine into a P0 incident. After a million+ simulated operations on his current project, the multiverse delivered just 3 race conditions but 12 usage-limit hits.
Related event: Hunting Race Conditions in AI-Written Code with Micro-Universe Simulations(4 posts)→
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