next.js

251e6bd9 - perf(turbopack): Migrate as many data structures to FxHash as possible (#75546)

perf(turbopack): Migrate as many data structures to FxHash as possible (#75546) Migrate as many things as possible that I could find with: ``` rg '\b(Index|Hash)(Map|Set)<' ``` # Benchmarks I tried building next-site, differences are likely within noise threshold. ## Before this change ``` $ hyperfine --warmup 1 --runs 5 --prepare 'rm -rf .next' 'TURBOPACK=1 TURBOPACK_BUILD=1 TURBO_ENGINE_READ_ONLY=1 pnpm next build --experimental-build-mode=compile' Benchmark 1: TURBOPACK=1 TURBOPACK_BUILD=1 TURBO_ENGINE_READ_ONLY=1 pnpm next build --experimental-build-mode=compile Time (mean ± σ): 27.254 s ± 0.268 s [User: 125.055 s, System: 16.090 s] Range (min … max): 26.810 s … 27.529 s 5 runs ``` ## After this change ``` $ hyperfine --warmup 1 --runs 5 --prepare 'rm -rf .next' 'TURBOPACK=1 TURBOPACK_BUILD=1 TURBO_ENGINE_READ_ONLY=1 pnpm next build --experimental-build-mode=compile' Benchmark 1: TURBOPACK=1 TURBOPACK_BUILD=1 TURBO_ENGINE_READ_ONLY=1 pnpm next build --experimental-build-mode=compile Time (mean ± σ): 26.711 s ± 0.461 s [User: 123.910 s, System: 15.667 s] Range (min … max): 26.346 s … 27.463 s 5 runs ```