DMD Performance Regression Publisher [GSoC 2026]

[Abul Hossain Khan]

> Have you thought about using Linux’s perf tool it has 
> interesting stats about performance counters. Valgrind is 
> sensible tool but being intrusive it may distort profile a 
> little bit.

We started with Valgrind because it's giving us quite good and 
stable results so far, but we'll definitely look into perf as 
well, especially once we switch to ldc2 + PGO and can compare the 
approaches.