#!/usr/bin/env python3 """L80 timing: native L140 vs L139 HEAD and assembler/world, all owner strata.""" from __future__ import annotations import json import os import re import statistics import subprocess import time from pathlib import Path ROOT = Path(__file__).resolve().parents[4] OUT = ROOT / "Saved/Linux/l140/timing" DATA = ROOT / "Standalone/data/owner_world.json" BINARIES = { "assembler-world": ( ROOT / "Saved/Linux/l137/bin/VoxelForgeCoreHeadless-l137-aa-a", "4499fb2a8a4ede7d6cbc68d1b794f104658cdaae93ed9cacbc91fe7ff3fc3621"), "head": ( ROOT / "Saved/Linux/l139/bin/VoxelForgeCoreHeadless-l139-clang", "b8603b6cb3975ca0f9669759e4e2464561c557fdb7aa6836acef123ecf0b99d1"), "l140-native-fi": ( ROOT / "Saved/Linux/l140/bin/VoxelForgeCoreHeadless-l140-clang", "6205e6c180ef32c41792dc3e0d8bf443a96df41974f40334af4bf3a157ab88da"), } CAMERAS = { # The camera override also selects the owner SurfaceWorld departure mouth. # Hold XY to the seed-0 native-FI valid mouth so every layer/version shares one layout. 0: (25.8369140625, 3.19921875, -372.2626953125), 1: (25.8369140625, 3.19921875, -737.0), 2: (25.8369140625, 3.19921875, -753.3740234375), 3: (25.8369140625, 3.19921875, -900.353515625), } PIPELINE_RE = re.compile(r"^\[StreamPipeline\] (.*)$", re.M) FIELDS_RE = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)") NEAR_RE = re.compile( r"^\[WorldAssemblerNearLODReady\] lods=0-2 tiles=(\d+)/(\d+) cold_ready_s=([0-9.]+)$", re.M) STAMP_RE = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=([0-9a-f]{64})$", re.M) L140_AA_FLOOR_PCT = 1.0 # L137's same-binary A/A median control. def quiet_machine() -> tuple[float, float]: load_1m = os.getloadavg()[0] def totals() -> tuple[int, int]: fields = Path("/proc/stat").read_text().splitlines()[0].split() values = [int(value) for value in fields[1:]] return sum(values), values[3] + values[4] before = totals() time.sleep(2.0) after = totals() idle = 100.0 * (after[1] - before[1]) / max(1, after[0] - before[0]) return load_1m, idle def run(strate: int, workers: int, version: str, phase: str, replicate: int) -> dict[str, object]: binary, expected_stamp = BINARIES[version] camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0" label = f"s{strate}-w{workers}-{version}-{phase}{replicate}" log = OUT / f"{label}.log" command = ["taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--", "timeout", "1740s", str(binary), str(DATA), "--world-assembler-prototype", "--stream-benchmark", "--stream-pipeline", f"--workers={workers}", "--clip-radius=3", "--max-clip-level=8", "--max-level=8", f"--camera={camera}", "--profile-lod-work", "--stream-scheduler-policy=3", "--recipe=surface-world"] if version == "l140-native-fi": command.append("--native-owner-fi") started = time.monotonic() with log.open("w", encoding="utf-8") as output: proc = subprocess.run(command, cwd=ROOT, stdout=output, stderr=subprocess.STDOUT, check=False, timeout=1740) content = log.read_text(encoding="utf-8", errors="replace") pipeline, near, stamp = PIPELINE_RE.search(content), NEAR_RE.search(content), STAMP_RE.search(content) if (proc.returncode or pipeline is None or near is None or stamp is None or stamp.group(1) != expected_stamp): raise SystemExit(f"L80 run failed or stamp mismatch: {log}; exit={proc.returncode}") if version == "l140-native-fi" and not re.search( r"^\[FloatingIslandWorldAssembly\].*dispatch=FloatingIslands-native .*status=PASS$", content, re.M): raise SystemExit(f"candidate timing did not bind native FloatingIslands: {log}") fields = dict(FIELDS_RE.findall(pipeline.group(1))) row = {"strate": strate, "workers": workers, "version": version, "phase": phase, "replicate": replicate, "source_stamp": stamp.group(1), "lod02_ready_s": float(near.group(3)), "whole_view_ready_s": float(fields["whole_view_ready"].removesuffix("s")), "whole_tiles": int(fields["whole_tiles"].split("/")[0]), "wall_s": round(time.monotonic() - started, 3), "log": str(log.relative_to(ROOT))} print("[L140TimingRun] " + json.dumps(row, sort_keys=True), flush=True) return row def main() -> int: if any(not path.is_file() for path, _ in BINARIES.values()) or not DATA.is_file(): raise SystemExit("missing L80 timing binaries or owner fixture") OUT.mkdir(parents=True, exist_ok=True) load_1m, idle = quiet_machine() (OUT / "machine-load-before.txt").write_text( f"1-minute load: {load_1m:.2f}\n2-second CPU idle: {idle:.1f}%\n") print(f"[L140TimingGate] load_1m={load_1m:.2f} cpu_idle_2s={idle:.1f}%", flush=True) if load_1m >= 1.5 or idle < 97.0: raise SystemExit("timing refused: machine is above the L80 quiet-load gate") rows: list[dict[str, object]] = [] for strate in range(4): for workers in (8, 12): for version in BINARIES: run(strate, workers, version, "warmup", 0) for replicate in range(1, 6): order = tuple(BINARIES) order = order[replicate % len(order):] + order[:replicate % len(order)] if replicate % 2 == 0: order = tuple(reversed(order)) for version in order: rows.append(run(strate, workers, version, "measured", replicate)) (OUT / "runs-partial.json").write_text(json.dumps(rows, indent=2) + "\n") measured = [row for row in rows if row["phase"] == "measured"] summary = [] for strate in range(4): for workers in (8, 12): group = [row for row in measured if row["strate"] == strate and row["workers"] == workers] medians = {version: {key: statistics.median( row[key] for row in group if row["version"] == version) for key in ("lod02_ready_s", "whole_view_ready_s")} for version in BINARIES} entry: dict[str, object] = {"strate": strate, "workers": workers, "replicates_per_version": 5, "medians": medians} for key in ("lod02_ready_s", "whole_view_ready_s"): for baseline in ("head", "assembler-world"): entry[f"l140_vs_{baseline}_{key}_delta_pct"] = round( 100.0 * (medians["l140-native-fi"][key] / medians[baseline][key] - 1.0), 2) entry[f"l140_vs_{baseline}_{key}_paired_deltas_pct"] = [round(100.0 * ( next(row[key] for row in group if row["version"] == "l140-native-fi" and row["replicate"] == replicate) / next(row[key] for row in group if row["version"] == baseline and row["replicate"] == replicate) - 1.0), 3) for replicate in range(1, 6)] summary.append(entry) result = {"a_a_noise_floor_pct": L140_AA_FLOOR_PCT, "a_a_reference": "L137 same-binary median control; assembler/world source stamp", "timing_protocol": "quiet machine; one warm-up per binary per cell; five interleaved measured runs; W8/W12; all four owner layers", "machine": {"load_1m": load_1m, "cpu_idle_2s_pct": idle}, "source_stamps": {name: stamp for name, (_path, stamp) in BINARIES.items()}, "runs": rows, "summary": summary} (OUT / "summary.json").write_text(json.dumps(result, indent=2) + "\n") print(f"[L140TimingSummary] measured_runs={len(measured)} warmups=24 aa_floor_pct=1.0 status=PASS", flush=True) return 0 if __name__ == "__main__": raise SystemExit(main())