core: per-tile passage route IDs and empty-feature early outs (L136, output = v236)
Passage visits -78..-89% near-ready; composer worker time back to baseline on Tunnel Network; v239 is 2-4% faster than v236 in 7/8 cells but still +4.3..+13.3% near-ready vs assembler/world. Surface World composer time equals baseline yet near-ready is +4-6%: unexplained. 16/16 seeds, fast tier, Clang/GCC green. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
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@@ -0,0 +1,136 @@
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#!/usr/bin/env python3
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"""Five interleaved L80 timings for assembler/world, v236, and v239."""
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from __future__ import annotations
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import json
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import os
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import re
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import statistics
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import subprocess
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import time
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[4]
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OUT = ROOT / "Saved/Linux/l136/timing"
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DATA = ROOT / "Standalone/data/owner_world.json"
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BINARIES = {
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"assembler-world": (ROOT / "Saved/Linux/l130/bin/VoxelForgeCoreHeadless-l130-clang",
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"8b3e7bfb4cde2b408ab940925eab973d8375d6b719774d6f72f64ee72b526c35"),
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"v236": (ROOT / "Saved/Linux/l135/bin/VoxelForgeCoreHeadless-clang-l135",
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"8dc4294ce0250a591ee4515471c3c547e796ffa4346ab44f0ae1740bbc3797f5"),
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"v239": (ROOT / "Saved/Linux/l136/bin/VoxelForgeCoreHeadless-l136-clang",
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"ebe6b32a7cd96c5aa69c6dc64ae6b9c6ff4bc18bc484efc5148611c48723c28f"),
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}
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CAMERAS = {
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0: (8.0, 16.0, -372.2626953125),
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1: (25.8369140625, 3.19921875, -737.0),
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2: (19.166015625, -14.2001953125, -753.3740234375),
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3: (-20.0625, -5.068359375, -900.353515625),
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}
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PIPELINE_RE = re.compile(r"^\[StreamPipeline\] (.*)$", re.M)
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FIELDS_RE = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)")
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NEAR_RE = re.compile(
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r"^\[WorldAssemblerNearLODReady\] lods=0-2 tiles=(\d+)/(\d+) cold_ready_s=([0-9.]+)$",
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re.M)
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STAMP_RE = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=([0-9a-f]+)$", re.M)
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PLAN_RE = re.compile(r"^\[WorldAssemblerPlanTiming\] total_ms=([0-9.]+) status=([^ ]+)$", re.M)
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CAVE_RE = re.compile(r"^\[CavernPlannerV1\].* plan_ms=([0-9.]+) status=([^ ]+)$", re.M)
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def run(strate: int, workers: int, version: str, phase: str,
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replicate: int) -> dict:
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binary, expected_stamp = BINARIES[version]
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camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0"
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label = f"s{strate}-w{workers}-{version}-{phase}{replicate}"
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log = OUT / f"{label}.log"
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command = ["taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
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"timeout", "1740s", str(binary), str(DATA), "--world-assembler-prototype",
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"--stream-benchmark", "--stream-pipeline", f"--workers={workers}",
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"--clip-radius=3", "--max-clip-level=8", "--max-level=8",
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f"--camera={camera}", "--profile-lod-work", "--stream-scheduler-policy=3"]
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started = time.monotonic()
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with log.open("w", encoding="utf-8") as output:
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result = subprocess.run(command, cwd=ROOT, stdout=output,
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stderr=subprocess.STDOUT, check=False, timeout=1740)
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content = log.read_text(encoding="utf-8", errors="replace")
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pipeline, near, stamp = (PIPELINE_RE.search(content), NEAR_RE.search(content),
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STAMP_RE.search(content))
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if (result.returncode or pipeline is None or near is None or stamp is None
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or stamp.group(1) != expected_stamp):
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raise SystemExit(f"L80 timing failed/stamp mismatch: {log}; exit={result.returncode}")
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fields = dict(FIELDS_RE.findall(pipeline.group(1)))
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plan, cave = PLAN_RE.search(content), CAVE_RE.search(content)
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row = {"strate": strate, "workers": workers, "version": version,
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"phase": phase, "replicate": replicate, "source_stamp": stamp.group(1),
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"lod02_ready_s": float(near.group(3)),
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"whole_view_ready_s": float(fields["whole_view_ready"].removesuffix("s")),
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"plan_ms": float(plan.group(1)) if plan else None,
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"cave_plan_ms": float(cave.group(1)) if cave else None,
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"wall_s": round(time.monotonic() - started, 3),
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"log": str(log.relative_to(ROOT))}
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print("[L136TimingRun] " + json.dumps(row, sort_keys=True), flush=True)
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return row
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def quiet_machine() -> tuple[float, float]:
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load_1m = os.getloadavg()[0]
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def totals() -> tuple[int, int]:
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fields = Path("/proc/stat").read_text().splitlines()[0].split()
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values = [int(value) for value in fields[1:]]
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return sum(values), values[3] + values[4]
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before = totals()
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time.sleep(2.0)
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after = totals()
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idle = 100.0 * (after[1] - before[1]) / max(1, after[0] - before[0])
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return load_1m, idle
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def main() -> int:
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if any(not path.is_file() for path, _ in BINARIES.values()) or not DATA.is_file():
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raise SystemExit("missing L136 timing input")
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OUT.mkdir(parents=True, exist_ok=True)
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load_1m, idle = quiet_machine()
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(OUT / "machine-load-before.txt").write_text(
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f"1-minute load: {load_1m:.2f}\n2-second CPU idle: {idle:.1f}%\n")
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print(f"[L136TimingGate] load_1m={load_1m:.2f} cpu_idle_2s={idle:.1f}%", flush=True)
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if load_1m >= 0.9 or idle < 97.0:
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raise SystemExit("timing refused: machine is above the L80 quiet-load gate")
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rows = []
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for strate in range(4):
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for workers in (8, 12):
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for version in BINARIES:
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run(strate, workers, version, "warmup", 0)
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for replicate in range(1, 6):
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order = tuple(BINARIES) if replicate % 2 else tuple(reversed(BINARIES))
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for version in order:
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rows.append(run(strate, workers, version, "measured", replicate))
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(OUT / "runs-partial.json").write_text(json.dumps(rows, indent=2) + "\n")
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measured = [row for row in rows if row["phase"] == "measured"]
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summary = []
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for strate in range(4):
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for workers in (8, 12):
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item = {"strate": strate, "workers": workers, "replicates_per_version": 5}
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medians = {}
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for version in BINARIES:
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group = [row for row in measured if row["strate"] == strate
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and row["workers"] == workers and row["version"] == version]
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medians[version] = {}
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for key in ("lod02_ready_s", "whole_view_ready_s"):
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values = [row[key] for row in group]
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medians[version][key] = statistics.median(values)
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item[f"{version}_{key}_values"] = values
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item[f"{version}_{key}_median"] = medians[version][key]
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for baseline in ("assembler-world", "v236"):
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for key in ("lod02_ready_s", "whole_view_ready_s"):
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item[f"v239_vs_{baseline}_{key}_delta_pct"] = round(
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100.0 * (medians["v239"][key] / medians[baseline][key] - 1.0), 2)
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summary.append(item)
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(OUT / "summary.json").write_text(json.dumps(
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{"runs": rows, "summary": summary}, indent=2) + "\n", encoding="utf-8")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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