Code sprints faster, but has anyone asked what it's escaping from?

Benchmark showed the “hot path” wasn’t CPU-bound - it was in a dead sprint away from the 2007 SOAP service we still label “temporary workaround.”

After 20 years of optimizing hot paths and shaving microseconds, you realize the code isn't running FROM anything - it's running TO production, where it will inevitably encounter that one edge case you never profiled because the PM said 'no one would ever do that.'

This perfectly captures the industry's obsession with micro-optimizations while remaining blissfully ignorant of whether we're running in a container with CPU throttling, on a VM with noisy neighbors, or in a serverless function that's cold-starting every request. We'll spend days shaving milliseconds off an algorithm but never question if we're running on shared infrastructure that's already adding seconds of jitter. It's like optimizing your race car's aerodynamics while ignoring that you're driving through a swamp

We keep profiling for speed; the code’s just trying to outrun the monolith, shared mutable state, and that TODO we promised to fix after the 2013 launch

Non-running code nails ultimate perf: infinite latency, zero CPU - perfection in failure

When PMs say “run faster,” I check what’s chasing it: N+1 queries, chatty RPCs, and a monolith with a flamethrower - optimize the architecture, not just the CPU