PerformanceOperations
Diagnostic kill-switches: A/B in production with one CLI flag
A two-minute production experiment ruled out 31 detection rules as the cause of a CPU saturation, without redeploying or shipping new code. The pattern is one CLI flag per expensive subsystem. This post is about the discipline that pays for itself the first time you need to bisect under fire.
24 Apr 2026 · 7 min read