Tasks 5-6 of the bench-harness plan (refs #251). Host context probes
(hostname/nproc/loadavg/commit/date, all best-effort), the child runner
(release aura binary resolved from cargo's compiler-artifact JSON messages;
/usr/bin/time -v wraps the child for CPU% + peak RSS, wall measured
in-process), and the campaign surfaces:
- a scratch data-only project per repetition ([paths] only — no [nodes]; the
std-vocabulary fallback covers the SMA blueprints), synthetic archives for
4 instruments, blueprints seeded via tiny synthetic sweeps, process docs
registered through the real CLI;
- campaign_sweep (sweep-only process — narrow per-cell fan-out) and
campaign_heavy (sweep -> gate -> walk-forward -> 1000-resample bootstrap —
wide fan-out): one campaign shape misreads regressions in the other;
- fingerprint = winner ordinals parsed from the always-on final
{"campaign_run":...} stdout line.
The full campaign-sweep determinism E2E (real release binary, real scratch
runs) is #[ignore]d out of the default suite — it costs a release build plus
child campaign runs, which the suite-wallclock discipline forbids on every
cargo test; run it via `cargo test -p aura-bench -- --ignored`. Held
quality note: the heavy/quick process docs stay two verbatim consts (plan
prescription; a format! builder would trade the uniform &str contract for
cosmetic dedup).
claude
3a25a4ccba