Look, it's likely we just come from different backgrounds. Most of my perf-sensitive work was optimizing inner loops with SIMD, allowing the compiler to inline hot functions, creating better data structures to make use of the CPU cache, etc. Frame pointer prologue overhead was measurable on most of our use-cases. I have a smaller amount of experience on profiling systems where calls trace across multiple processes, so maybe I haven't felt this pain enough. Though I still think the onus should be on teams to be able to comfortably recompile---not the world---but some part of it. After all, a lot of tuning can only be done through compile flags, such as turning off codepaths/capabilities which are unnecessary.