Isnt item 4 basically encouraging microbenchmarks? Microbenchmarks can be misleading, and there's no guarantee you're benchmarking the important things. It me

Isnt item 4 basically encouraging microbenchmarks? Microbenchmarks can be misleading, and there's no guarantee you're benchmarking the important things. It mentions profilers in passing, but i find it more productive to start with a profiler.