CodSpeed Profiling

Profile locally with the same valgrind-codspeed fork that CodSpeed CI uses, so instruction counts match what CI reports.

Prerequisites

• valgrind-codspeed fork installed (check: valgrind --version shows codspeed)
• Project has a just profile <bench> [filter] recipe (or equivalent callgrind workflow)

Diagnosing a Regression

1. Profile the regression

just profile <bench_name> <filter>