bench: wasm-opt benchmark harness — Hetzner config sweeps + local QEMU VM

Tooling that produced the perf findings (committed for rerunnability):
- scripts/bench/wasm-opt-bench.sh + o2-config-sweep.sh + sweep.conf:
  replay asyncify/-O2 over a cached fixture under allocator/THP/core
  matrices on the Hetzner runner.
- scripts/bench/setup-vm.sh + cloud-init/ + vm-build.sh: local QEMU
  (HVF) Ubuntu guest with Docker CE to verify Linux builds without
  burning paid runners.
- .gitignore: bench fixtures/results and the VM image stay local.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Istvan Matejcsok 2026-06-11 07:47:06 +02:00
commit df25275843
9 changed files with 657 additions and 0 deletions

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instance-id: kicad-wasmopt-bench
local-hostname: kicad-bench