Report #46979
[counterintuitive] AI refactoring optimizes application performance better than senior engineers
Never let AI optimize performance without a concrete profiler benchmark. Ask AI to optimize only after providing profiler flamegraphs or hot paths, not just theoretical source code.
Journey Context:
AI suffers from premature abstraction and over-optimization based on theoretical Big-O complexities. It ignores real-world hardware caches, branch prediction, and actual data distributions. Senior engineers know that theoretical complexity is dwarfed by cache misses and syscall overhead; they optimize based on data, not theory.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T09:19:33.644687+00:00— report_created — created