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docs(perf): record corrected Slice A RDP baselines

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Erik 2026-07-24 13:29:23 +02:00
parent 24f898c54d
commit 05a22dee99
4 changed files with 256 additions and 11 deletions
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docs/plans/2026-04-11-roadmap.md
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@ -1580,7 +1580,12 @@ port in any phase — no separate listing here.
> unifies the unfinished MP pak/render-world work with future Track LH, preserves
> retail-shaped simulation and the N.5 renderer, and reorders execution around
> prepared content and cost-budgeted streaming before render-ECS throughput.
> This records the plan only; implementation remains not started.
> **Execution update 2026-07-24:** Slice A's corrected tooling and diagnostic
> RDP captures have landed. The committed evidence includes capped/uncapped
> nine-stop routes, dense Arwic, portal windows, observer-effect measurement,
> binary provenance, and contention stacks. The physical-local AMD-display gate
> remains open and blocks Slice C. Slice B EnvCell dedup is active under
> [`2026-07-24-modern-runtime-slice-b-envcell-dedup.md`](2026-07-24-modern-runtime-slice-b-envcell-dedup.md).
**Spec:** `docs/superpowers/specs/2026-07-05-modern-pipeline-design.md` (the
umbrella design — read it first). **Goal:** smoothness first (no frame over
@ -1602,7 +1607,7 @@ hitch and follows.
|---|---|---|
| MP0 | Honest frame profiler (`[frame-prof]`) + baseline capture | ✅ SHIPPED 2026-07-05 — gate PASSED (`docs/research/2026-07-05-mp0-baseline.md`); headline: town spikes = GC churn (1.5–3 MB/frame), teleport hitch 211 ms |
| MP1a | `AcDream.Content` extraction (GL-free MeshExtractor + boundary records out of App) | ✅ SHIPPED 2026-07-05 — user-gated (renders identical, zero tripwires, perf-neutral); 8 commits `651d041e`..`b0758d77` |
| MP1b | Pak format + `acdream-bake` CLI + mmap zero-copy `PakReader` + equivalence test | 🔵 code + review-fixes done; **full-bake gate found 865 GB → EnvCell dedup slice REQUIRED before shipped** (spec §6.6) |
| MP1b | Pak format + `acdream-bake` CLI + mmap zero-copy `PakReader` + equivalence test | 🔵 **ACTIVE 2026-07-24** — implementing content-identity EnvCell dedup, shared TOC aliases, atomic output, and a new full-bake gate; detailed plan: [`2026-07-24-modern-runtime-slice-b-envcell-dedup.md`](2026-07-24-modern-runtime-slice-b-envcell-dedup.md) |
| **MP-Alloc (safe batch)** | Reuse per-frame buffers: anim pose, particle draw-list, interior partition, animatedIds/drawableCells sets | ✅ SHIPPED + USER-GATED 2026-07-05 — dense-town frame-time spikes 20–87ms → 6–10ms, alloc spikes (30–75MB single-frame) eliminated, gen2 GC 5–11/window → ~0; user confirms FPS steady. 4 commits `b8c05e2b`..`91afea24` |
| MP-Alloc (hard sites) | EnvCell settled-camera rebuild gate + physics `Transition` pooling — the residual steady ~1.6MB/frame | ⚪ OPTIONAL follow-up — would lower the median too, but the wild-swing complaint is already resolved; each needs its own careful gate (batch correctness / physics faithfulness) |
| MP1c | Streaming cutover to pak + hitch gate (vs the 211 ms baseline) | ⚪ after MP-Alloc |