research: Unreal arrival traces with swept tunnels (L102)
Six null-RHI traces on 55e20f4, no address-space cap. FI: first admission 0.385 s, LOD0-2 settled
1.943 s (1.555 s from admission; L97 2.109 s), UWorld::Tick max 6.7 ms (L97 21 ms). SW: 0.415 /
1.706 s (1.292 s from admission), max 12.0 ms. EndPhysics gap <= 2 ms. Peak RSS ~2.32 GiB.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
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# Linux 102
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Six complete null-RHI Unreal traces on `55e20f4`, with the L97 low-priority tile settings and tick logging enabled. Unreal was launched as `taskset -c 0-11 timeout 1740s`; it had no address-space cap. No build was needed: the VFHost plugin source matches this checkout and its module binary postdates the source.
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| Stratum | First admission | LOD0–2 settled | From admission | `UWorld::Tick` p99 / worst max | `AVoxelWorld::Tick` p99 / worst max | EndPhysics gap max |
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|---|---:|---:|---:|---:|---:|---:|
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| FI | 0.385 s (0.382–0.388) | 1.943 s (1.922–1.951) | 1.555 s (1.541–1.566) | 4.8–6.6 / 6.7 ms | 4.2–4.8 / 5.1 ms | 1 ms |
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| SW | 0.415 s (0.414–0.417) | 1.706 s (1.706–1.713) | 1.292 s (1.289–1.298) | 8.5–10.0 / 12.0 ms | 7.9–9.4 / 11.3 ms | 2 ms |
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Times are medians across three complete runs, with ranges in parentheses. Tick p99 columns show the three-run range; max is the worst per-run maximum.
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Compared with L97, median settle from first admission was 2.109 s / 21 ms max `UWorld::Tick` for FI and 1.316 s / 11 ms for SW. L102 measured 1.555 s / 6.7 ms for FI and 1.292 s / 12.0 ms for SW. The largest EndPhysics gap fell from 16 ms / 7 ms to 1 ms / 2 ms.
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Peak Unreal RSS (`VmHWM`) was 2,378.7 MiB (2.32 GiB): FI runs were 2,370.5–2,378.7 MiB and SW runs 2,275.3–2,295.6 MiB. There was no L97-era executable or RSS record available; a separate old host/plugin build would be needed, so the memory delta is unknown.
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Failed L102 runs: none. All six exited 0 and settled LOD0–2. Logs and per-run summaries are in `Saved/Linux/l102/unreal-arrival/`. No installs, commits, pushes, or stashes.
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#!/usr/bin/env python3
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"""Run one pinned null-RHI SW/FI arrival for Linux 102."""
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from __future__ import annotations
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import argparse
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from collections import Counter
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from datetime import datetime
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import json
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import re
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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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HOST = Path("/home/jahni/VFHost")
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HOST_PLUGIN_SAVED = HOST / "Plugins/VoxelForge/Saved/Linux/l102"
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HOST_SAVED = HOST / "Saved/Linux/l102"
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EDITOR = Path("/home/jahni/UnrealEngine/Engine/Binaries/Linux/UnrealEditor-Cmd")
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OUT = ROOT / "Saved/Linux/l102/unreal-arrival"
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SPAWNS_M = {
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"FI": (25.8369140625, 3.19921875, -737.0),
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"SW": (25.8369140625, 3.19921875, -200.0),
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}
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MOVE_START_S = 20.0
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MOVE_DURATION_S = 12.0
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EXIT_S = MOVE_START_S + MOVE_DURATION_S + 5.0
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RUN_TIMEOUT_S = 1740
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def read_events(path: Path) -> list[dict]:
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events = []
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if path.is_file():
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for line in path.read_text(encoding="utf-8", errors="replace").splitlines():
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if line.startswith("{"):
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try:
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events.append(json.loads(line))
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except json.JSONDecodeError:
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pass
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return events
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def percentile(values: list[float], fraction: float) -> float | None:
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if not values:
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return None
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ordered = sorted(values)
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return ordered[min(len(ordered) - 1, int(round((len(ordered) - 1) * fraction)))]
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def sample_unreal_peak_rss() -> tuple[int, int] | None:
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executable = str(EDITOR).encode()
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project = str(HOST / "VFHost.uproject").encode()
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peak: tuple[int, int] | None = None
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for process in Path("/proc").glob("[0-9]*"):
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try:
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command_line = (process / "cmdline").read_bytes()
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if executable not in command_line or project not in command_line:
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continue
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status = (process / "status").read_text(encoding="ascii", errors="ignore")
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match = re.search(r"^VmHWM:\s+(\d+)\s+kB$", status, re.MULTILINE)
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if match:
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rss_kib = int(match.group(1))
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if peak is None or rss_kib > peak[0]:
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peak = (rss_kib, int(process.name))
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except (FileNotFoundError, PermissionError, ProcessLookupError, OSError):
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continue
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return peak
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def endphysics_gap(stdout: Path) -> tuple[float | None, int | None]:
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release_times: dict[int, dict[int, datetime]] = {}
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pattern = re.compile(
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r"^\[(\d{4}\.\d{2}\.\d{2}-\d{2}\.\d{2}\.\d{2}:\d{3})\].*"
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r"LogTick: tick\s+(\d+)\s+-+\s+Release tick group ([34])")
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with stdout.open(encoding="utf-8", errors="replace") as stream:
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for line in stream:
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match = pattern.match(line)
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if not match:
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continue
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timestamp = datetime.strptime(match.group(1), "%Y.%m.%d-%H.%M.%S:%f")
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frame = int(match.group(2))
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group = int(match.group(3))
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release_times.setdefault(frame, {})[group] = timestamp
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gaps = [(round((times[4] - times[3]).total_seconds() * 1000.0, 3), frame)
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for frame, times in release_times.items() if 3 in times and 4 in times]
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return max(gaps, default=(None, None))
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def run(stratum: str, repeat: int, phase: str, ready_depth: int,
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background_cap: int, worker_reserve: int, helper_background: int,
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tile_background_low: int, tile_background_normal: int, startup_boost: int,
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tick_logs: bool, insights: bool) -> dict:
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label = (f"{phase}-{stratum.lower()}-rd{ready_depth}-bg{background_cap}"
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f"-reserve{worker_reserve}-helperbg{helper_background}"
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f"-tilelow{tile_background_low}-tilenormal{tile_background_normal}"
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f"-ticklog{int(tick_logs)}"
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f"-boost{startup_boost}-{repeat}")
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trace = OUT / f"{label}.trace.jsonl"
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utrace = OUT / f"{label}.utrace"
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abslog = OUT / f"{label}.log"
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stdout = OUT / f"{label}.stdout.log"
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output = HOST_PLUGIN_SAVED / "output" / label
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userdir = HOST_SAVED / "user" / label
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zendata = HOST_SAVED / "zen" / label
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ddc = HOST_SAVED / "DDC"
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for directory in (OUT, output, userdir, zendata, ddc):
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directory.mkdir(parents=True, exist_ok=True)
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trace.unlink(missing_ok=True)
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utrace.unlink(missing_ok=True)
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spawn_cm = ",".join(f"{value * 100.0:.3f}" for value in SPAWNS_M[stratum])
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command = [
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str(EDITOR), str(HOST / "VFHost.uproject"), "-nullrhi", "-unattended",
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"-nop4", "-nosplash", "-NoSound", "-corelimit=12", "-NoZenAutoLaunch",
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"-notraceserver", "-nocrashreports",
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"-DisablePlugins=AndroidFileServer",
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"-ddc=NoZenLocalFallback", f"-userdir={userdir}", f"-ZenDataPath={zendata}",
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f"-LocalDataCachePath={ddc}", "-run=VoxelForgeExplore", "-seed=0",
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"-archetype=TunnelNetwork", f"-slot={1 if stratum == 'FI' else 0}",
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"-modes=export", "-gameconfig=1", "-coreworldtest=1",
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"-ownerfourstrateplan=1", "-corevoxelsizecm=25", "-coreislandtest=0",
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"-corefallbacktest=0", "-coreofftest=0", "-coreplantest=0",
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"-settingsref=/Game/VoxelForge/DA_Settings.DA_Settings", "-corehybridmesher=0",
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f"-out={output}", "-voxel.StreamingCoarseFirst=1",
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"-voxel.StreamingDynamicNearReserve=1",
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"-voxel.StreamingLegacyPendingResultCap=0",
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"-voxel.CoreRegionConcurrentAdmission=1",
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"-voxel.StreamingResultBacklogCap=256",
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f"-voxel.StreamingReadyQueueDepth={ready_depth}",
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f"-voxel.StreamingBackgroundWorkerCap={background_cap}",
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f"-voxel.StreamingBackgroundWorkerReserve={worker_reserve}",
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f"-voxel.CoreParallelForBackgroundPriority={helper_background}",
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f"-voxel.StreamingTileBackgroundLow={tile_background_low}",
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f"-voxel.StreamingTileBackgroundNormal={tile_background_normal}",
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f"-voxel.TestLogTickFunctions={int(tick_logs)}",
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"-voxel.CoreColumnCacheDirectMapped=0", "-voxel.CoreMCGradientMemoization=1",
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"-voxel.StreamingCollisionLookahead=1",
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f"-voxel.StreamingStartupApplyBoost={startup_boost}",
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"-voxel.TestMove=1", "-voxel.TestMoveSpeedCmPerSecond=140.0",
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f"-voxel.TestMoveStartSeconds={MOVE_START_S:.1f}",
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f"-voxel.TestMoveDurationSeconds={MOVE_DURATION_S:.1f}",
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f"-voxel.TestExitSeconds={EXIT_S:.1f}", "-voxel.TestMoveDirection=1,0,0",
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"-voxel.StreamingSchedulerPolicy=3", "-voxel.TestExitOnSteady=0",
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"-coreworldstreamtrace=1", f"-voxel.StartupTraceSpawnCm={spawn_cm}",
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"-voxel.StartupTraceUntilEndPlay=1", "-voxel.StartupTraceThroughCrossing=1",
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"-voxel.StartupTraceMaxTiles=16384", f"-voxel.StartupTraceFile={trace}",
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f"-abslog={abslog}",
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]
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if insights:
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command += ["-trace=cpu,task,frame", "-statnamedevents",
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f"-tracefile={utrace}", "-tracefiletrunc"]
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wrapped = ["taskset", "-c", "0-11", "timeout", f"{RUN_TIMEOUT_S}s", *command]
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started = time.monotonic()
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with stdout.open("w", encoding="utf-8") as stream:
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process = subprocess.Popen(wrapped, cwd=ROOT, stdout=stream,
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stderr=subprocess.STDOUT)
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peak_rss = None
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while process.poll() is None:
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observed = sample_unreal_peak_rss()
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if observed and (peak_rss is None or observed[0] > peak_rss[0]):
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peak_rss = observed
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time.sleep(0.25)
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exit_code = process.wait()
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observed = sample_unreal_peak_rss()
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if observed and (peak_rss is None or observed[0] > peak_rss[0]):
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peak_rss = observed
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events = read_events(trace)
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worker_backend_config = next(
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(e for e in events if e.get("type") == "worker_backend_config"), {})
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worker_cap_readback = next(
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(e for e in events if e.get("type") == "streaming_worker_cap_readback"), {})
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samples = [e for e in events if e.get("type") == "streaming_sample"]
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arrival = [e for e in samples if float(e.get("t_s", 0.0)) < MOVE_START_S]
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full = next((e for e in arrival
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if sum(e.get("desired_by_lod", [0] * 9)[:3]) > 0
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and sum(e.get("settled_by_lod", [0] * 9)[:3])
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>= sum(e.get("desired_by_lod", [0] * 9)[:3])), None)
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first_admission = next((e for e in events if e.get("type") == "scheduler_admission"
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and e.get("desired_rebuilt") == 1), None)
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request_events = [e for e in events if e.get("type") == "request"]
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initial_request_events = [e for e in request_events if e.get("epoch") == 0]
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tile_by_ordinal = {e.get("request_ordinal"): e for e in events
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if e.get("type") == "tile"}
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collision_count = sum(1 for e in events if e.get("type") == "collision_ready"
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and e.get("level", 9) <= 2
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and full and e.get("t_s", 1e30) <= full["t_s"])
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initial_tiles = [tile_by_ordinal[r.get("request_ordinal")] for r in initial_request_events
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if full and r.get("t_s", 1e30) <= full["t_s"]
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and r.get("request_ordinal") in tile_by_ordinal
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and tile_by_ordinal[r["request_ordinal"]].get("level", 9) <= 2]
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burst_start_s = float(first_admission["t_s"]) if first_admission else -1.0
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burst_end_s = float(full["t_s"]) if full else -1.0
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work_by_frame = {int(e.get("frame", -1)): e for e in events
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if e.get("type") == "game_thread_work_frame"}
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work_values = [e for e in work_by_frame.values()
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if burst_start_s <= float(e.get("t_s", -1.0)) <= burst_end_s]
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arrival_frame_ids = {int(e.get("frame", -1)) for e in work_values}
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scheduler_by_frame = {int(e.get("frame", -1)): e for e in events
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if e.get("type") == "scheduler_admission"}
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scheduler_values = [e for e in events if e.get("type") == "scheduler_admission"
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and burst_start_s <= float(e.get("t_s", -1.0)) <= burst_end_s]
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apply_by_frame = {int(e.get("frame", -1)): e for e in events
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if e.get("type") == "apply_frame"}
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commandlet_tick_by_frame = {int(e.get("frame", -1)): e for e in events
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if e.get("type") == "commandlet_world_tick_frame"}
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garbage_collect_by_frame = {int(e.get("frame", -1)): e for e in events
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if e.get("type") == "garbage_collect"}
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# apply_frame N+1 records the interval containing AVoxelWorld::Tick N. Its apply_ms
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# belongs to Tick N+1, so use apply_by_frame[N] for the same-tick apply breakdown.
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near_intervals = [apply_by_frame[frame + 1] for frame in arrival_frame_ids
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if frame + 1 in apply_by_frame]
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rmc_by_frame: dict[int, dict[str, float]] = {}
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for event in events:
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frame = int(event.get("frame", -1))
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if event.get("type") != "rmc_submit" or frame not in arrival_frame_ids:
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continue
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values = rmc_by_frame.setdefault(frame, {
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"component_acquire_ms": 0.0,
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"create_section_group_ms": 0.0,
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"create_sections_ms": 0.0,
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"collision_handoff_ms": 0.0,
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})
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for key in values:
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values[key] += float(event.get(key, 0.0))
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collision_completion_by_frame: dict[int, float] = {}
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for event in events:
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frame = int(event.get("frame", -1))
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if event.get("type") == "collision_completion" and frame in arrival_frame_ids:
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collision_completion_by_frame[frame] = collision_completion_by_frame.get(frame, 0.0) \
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+ float(event.get("handler_ms", 0.0))
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near_requests = [r for r in request_events if full and r.get("t_s", 1e30) <= full["t_s"]
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and r.get("level", 9) <= 2]
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initial_lod0_counts = Counter(
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tuple(r.get("tile", ())) for r in near_requests if r.get("level") == 0)
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repeated_lod0_keys = [
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{"tile": list(tile), "requests": count}
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for tile, count in sorted(initial_lod0_counts.items()) if count > 1]
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initial_scheduler_frames = [e for e in events
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if e.get("type") == "scheduler_admission" and full
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and e.get("t_s", 1e30) <= full["t_s"]]
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worst_interval = max(near_intervals, key=lambda e: float(e.get("frame_ms", 0.0)), default=None)
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worst_interval_frame_id = int(worst_interval.get("frame", -1)) if worst_interval else -1
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worst_work_frame_id = worst_interval_frame_id - 1
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worst_work = work_by_frame.get(worst_work_frame_id, {})
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worst_apply = apply_by_frame.get(worst_work_frame_id, {})
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worst_scheduler = scheduler_by_frame.get(worst_work_frame_id, {})
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worst_rmc = rmc_by_frame.get(worst_work_frame_id, {})
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worst_collision_completion_ms = collision_completion_by_frame.get(worst_work_frame_id, 0.0)
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rmc_values = [rmc_by_frame.get(frame, {}) for frame in arrival_frame_ids]
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apply_values = [apply_by_frame[frame] for frame in arrival_frame_ids
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if frame in apply_by_frame]
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||||||
|
commandlet_tick_values = [commandlet_tick_by_frame[frame] for frame in arrival_frame_ids
|
||||||
|
if frame in commandlet_tick_by_frame]
|
||||||
|
garbage_collect_values = [garbage_collect_by_frame[frame] for frame in arrival_frame_ids
|
||||||
|
if frame in garbage_collect_by_frame]
|
||||||
|
|
||||||
|
def work_stat(name: str, fraction: float | None = None) -> float | None:
|
||||||
|
values = [float(e.get(name, 0.0)) for e in work_values]
|
||||||
|
return percentile(values, fraction) if fraction is not None else max(values, default=0.0)
|
||||||
|
|
||||||
|
def scheduler_stat(name: str, fraction: float | None = None) -> float | None:
|
||||||
|
values = [float(e.get(name, 0.0)) for e in scheduler_values]
|
||||||
|
return percentile(values, fraction) if fraction is not None else max(values, default=0.0)
|
||||||
|
|
||||||
|
def rmc_stat(name: str, fraction: float | None = None) -> float | None:
|
||||||
|
values = [float(e.get(name, 0.0)) for e in rmc_values]
|
||||||
|
return percentile(values, fraction) if fraction is not None else max(values, default=0.0)
|
||||||
|
|
||||||
|
def commandlet_stat(name: str, fraction: float | None = None) -> float | None:
|
||||||
|
values = [float(e.get(name, 0.0)) for e in commandlet_tick_values]
|
||||||
|
return percentile(values, fraction) if fraction is not None else max(values, default=0.0)
|
||||||
|
|
||||||
|
row = {
|
||||||
|
"label": label, "stratum": stratum, "repeat": repeat, "phase": phase,
|
||||||
|
"ready_queue_depth": ready_depth,
|
||||||
|
"requested_background_worker_cap": background_cap,
|
||||||
|
"background_worker_cap": worker_cap_readback.get(
|
||||||
|
"streaming_background_worker_cap", background_cap),
|
||||||
|
"requested_background_worker_reserve": worker_reserve,
|
||||||
|
"background_worker_reserve": worker_backend_config.get(
|
||||||
|
"streaming_background_worker_reserve", worker_cap_readback.get(
|
||||||
|
"background_worker_reserve", worker_reserve)),
|
||||||
|
"requested_core_parallel_for_background_priority": helper_background,
|
||||||
|
"core_parallel_for_background_priority": worker_backend_config.get(
|
||||||
|
"core_parallel_for_background_priority", helper_background),
|
||||||
|
"requested_streaming_tile_background_low": tile_background_low,
|
||||||
|
"streaming_tile_background_low": worker_backend_config.get(
|
||||||
|
"streaming_tile_background_low", tile_background_low),
|
||||||
|
"requested_streaming_tile_background_normal": tile_background_normal,
|
||||||
|
"streaming_tile_background_normal": worker_backend_config.get(
|
||||||
|
"streaming_tile_background_normal", tile_background_normal),
|
||||||
|
"effective_tile_slots": worker_backend_config.get("effective_tile_slots"),
|
||||||
|
"background_worker_threads": worker_backend_config.get("taskgraph_background_threads"),
|
||||||
|
"startup_apply_boost": startup_boost, "insights": insights,
|
||||||
|
"engine_tick_logs": tick_logs,
|
||||||
|
"exit_code": exit_code,
|
||||||
|
"launch_wrapper": "taskset -c 0-11 timeout 1740s (no address-space limit)",
|
||||||
|
"peak_rss_kib": peak_rss[0] if peak_rss else None,
|
||||||
|
"peak_rss_mib": round(peak_rss[0] / 1024.0, 1) if peak_rss else None,
|
||||||
|
"peak_rss_pid": peak_rss[1] if peak_rss else None,
|
||||||
|
"endphysics_to_postphysics_gap_ms_max": None,
|
||||||
|
"endphysics_gap_frame": None,
|
||||||
|
"wall_s": round(time.monotonic() - started, 3),
|
||||||
|
"desired_t_s": next((e.get("t_s") for e in events if e.get("type") == "desired_set"), None),
|
||||||
|
"first_admission_t_s": first_admission.get("t_s") if first_admission else None,
|
||||||
|
"lod02_full_settled_t_s": full.get("t_s") if full else None,
|
||||||
|
"near_settle_from_first_admission_s": round(
|
||||||
|
float(full["t_s"]) - float(first_admission["t_s"]), 4)
|
||||||
|
if full and first_admission else None,
|
||||||
|
"desired_by_lod": full.get("desired_by_lod", [])[:3] if full else None,
|
||||||
|
"settled_by_lod": full.get("settled_by_lod", [])[:3] if full else None,
|
||||||
|
"near_admitted_tiles": len(near_requests),
|
||||||
|
"initial_lod0_admissions": sum(initial_lod0_counts.values()),
|
||||||
|
"repeated_lod0_request_keys_before_settle": repeated_lod0_keys,
|
||||||
|
"peak_result_backlog_before_settle": max(
|
||||||
|
(int(e.get("result_backlog", 0)) for e in initial_scheduler_frames), default=0),
|
||||||
|
"last_admission_t_s": max((e.get("t_s", 0.0) for e in near_requests), default=None),
|
||||||
|
"near_tile_events": len(initial_tiles),
|
||||||
|
"near_worker_seconds": round(sum(e.get("worker_task_s", 0.0) for e in initial_tiles), 4),
|
||||||
|
"near_core_seconds": round(sum(e.get("core_generate_s", 0.0) for e in initial_tiles), 4),
|
||||||
|
"collision_ready_by_settle": collision_count,
|
||||||
|
"burst_frame_count": len(near_intervals),
|
||||||
|
"burst_frame_ms_p95": round(sorted(e.get("frame_ms", 0.0) for e in near_intervals)[
|
||||||
|
min(len(near_intervals) - 1, int(.95 * (len(near_intervals) - 1)))], 3)
|
||||||
|
if near_intervals else None,
|
||||||
|
"burst_frame_ms_max": round(max((e.get("frame_ms", 0.0) for e in near_intervals), default=0.0), 3),
|
||||||
|
"burst_full_world_tick_ms_p99": round(commandlet_stat("world_tick_ms", .99) or 0.0, 3),
|
||||||
|
"burst_full_world_tick_ms_max": round(commandlet_stat("world_tick_ms") or 0.0, 3),
|
||||||
|
"burst_world_pre_actor_ms_p99": round(commandlet_stat("world_pre_actor_ms", .99) or 0.0, 3),
|
||||||
|
"burst_world_pre_actor_ms_max": round(commandlet_stat("world_pre_actor_ms") or 0.0, 3),
|
||||||
|
"burst_world_actor_phase_ms_p99": round(commandlet_stat("world_actor_phase_ms", .99) or 0.0, 3),
|
||||||
|
"burst_world_actor_phase_ms_max": round(commandlet_stat("world_actor_phase_ms") or 0.0, 3),
|
||||||
|
"burst_world_post_actor_ms_p99": round(commandlet_stat("world_post_actor_ms", .99) or 0.0, 3),
|
||||||
|
"burst_world_post_actor_ms_max": round(commandlet_stat("world_post_actor_ms") or 0.0, 3),
|
||||||
|
"burst_commandlet_readiness_check_ms_max": round(
|
||||||
|
commandlet_stat("readiness_check_ms") or 0.0, 3),
|
||||||
|
"burst_commandlet_sleep_ms_p99": round(commandlet_stat("sleep_ms", .99) or 0.0, 3),
|
||||||
|
"burst_commandlet_sleep_ms_max": round(commandlet_stat("sleep_ms") or 0.0, 3),
|
||||||
|
"burst_commandlet_loop_ms_max": round(commandlet_stat("loop_ms") or 0.0, 3),
|
||||||
|
"burst_gc_count": len(garbage_collect_values),
|
||||||
|
"burst_gc_duration_ms_max": round(max(
|
||||||
|
(float(e.get("duration_ms", 0.0)) for e in garbage_collect_values), default=0.0), 3),
|
||||||
|
"burst_max_meshes_per_frame": max((e.get("meshes_applied", 0) for e in apply_values), default=0),
|
||||||
|
"burst_max_apply_ms": round(max((e.get("apply_ms", 0.0) for e in apply_values), default=0.0), 3),
|
||||||
|
"burst_max_admit_per_frame": max((sum(e.get("submitted_by_lod", [0] * 9)[:3])
|
||||||
|
for e in scheduler_values), default=0),
|
||||||
|
"burst_frame_timing_count": len(work_values),
|
||||||
|
"burst_active_generation_workers_p95": round(work_stat("active_generation_workers", .95) or 0.0, 3),
|
||||||
|
"burst_active_generation_workers_max": round(work_stat("active_generation_workers") or 0.0, 3),
|
||||||
|
"burst_active_tile_tasks_max": round(work_stat("active_tile_tasks") or 0.0, 3),
|
||||||
|
"burst_world_tick_ms_p99": round(work_stat("tick_ms", .99) or 0.0, 3),
|
||||||
|
"burst_world_tick_ms_max": round(work_stat("tick_ms") or 0.0, 3),
|
||||||
|
"burst_update_chunks_ms_p99": round(work_stat("update_chunks_ms", .99) or 0.0, 3),
|
||||||
|
"burst_update_chunks_ms_max": round(work_stat("update_chunks_ms") or 0.0, 3),
|
||||||
|
"burst_pending_drain_ms_p99": round(work_stat("pending_drain_ms", .99) or 0.0, 3),
|
||||||
|
"burst_pending_drain_ms_max": round(work_stat("pending_drain_ms") or 0.0, 3),
|
||||||
|
"burst_post_apply_callbacks_ms_p99": round(work_stat("post_apply_callbacks_ms", .99) or 0.0, 3),
|
||||||
|
"burst_post_apply_callbacks_ms_max": round(work_stat("post_apply_callbacks_ms") or 0.0, 3),
|
||||||
|
"burst_visibility_reconcile_ms_p99": round(work_stat("visibility_reconcile_ms", .99) or 0.0, 3),
|
||||||
|
"burst_visibility_reconcile_ms_max": round(work_stat("visibility_reconcile_ms") or 0.0, 3),
|
||||||
|
"burst_collision_probe_ms_max": round(work_stat("collision_probe_ms") or 0.0, 3),
|
||||||
|
"burst_visible_apply_probe_ms_max": round(work_stat("visible_apply_probe_ms") or 0.0, 3),
|
||||||
|
"burst_lod0_ready_ms_max": round(work_stat("lod0_ready_ms") or 0.0, 3),
|
||||||
|
"burst_steady_trace_ms_max": round(work_stat("steady_trace_ms") or 0.0, 3),
|
||||||
|
"burst_modification_ms_max": round(work_stat("modification_ms") or 0.0, 3),
|
||||||
|
"burst_lifecycle_audit_ms_p99": round(work_stat("lifecycle_audit_ms", .99) or 0.0, 3),
|
||||||
|
"burst_lifecycle_audit_ms_max": round(work_stat("lifecycle_audit_ms") or 0.0, 3),
|
||||||
|
"burst_collision_gate_ms_p99": round(work_stat("collision_gate_ms", .99) or 0.0, 3),
|
||||||
|
"burst_collision_gate_ms_max": round(work_stat("collision_gate_ms") or 0.0, 3),
|
||||||
|
"burst_unload_ms_p99": round(work_stat("unload_ms", .99) or 0.0, 3),
|
||||||
|
"burst_unload_ms_max": round(work_stat("unload_ms") or 0.0, 3),
|
||||||
|
"burst_trace_json_ms_p99": round(work_stat("trace_json_ms", .99) or 0.0, 3),
|
||||||
|
"burst_trace_json_ms_max": round(work_stat("trace_json_ms") or 0.0, 3),
|
||||||
|
"burst_desired_rebuild_ms_max": round(scheduler_stat("desired_rebuild_ms") or 0.0, 3),
|
||||||
|
"burst_rmc_create_group_ms_p99": round(rmc_stat("create_section_group_ms", .99) or 0.0, 3),
|
||||||
|
"burst_rmc_create_group_ms_max": round(rmc_stat("create_section_group_ms") or 0.0, 3),
|
||||||
|
"burst_rmc_collision_handoff_ms_max": round(rmc_stat("collision_handoff_ms") or 0.0, 3),
|
||||||
|
"burst_collision_completion_ms_max": round(max(
|
||||||
|
collision_completion_by_frame.values(), default=0.0), 3),
|
||||||
|
"worst_frame_breakdown": {
|
||||||
|
"frame": worst_work_frame_id,
|
||||||
|
"world_tick_frame": worst_work_frame_id,
|
||||||
|
"frame_interval_end_frame": worst_interval_frame_id,
|
||||||
|
"frame_interval_ms": round(float(worst_interval.get("frame_ms", 0.0)), 3)
|
||||||
|
if worst_interval else None,
|
||||||
|
"apply_ms": round(float(worst_apply.get("apply_ms", 0.0)), 3)
|
||||||
|
if worst_apply else None,
|
||||||
|
"result_drain_ms": round(float(worst_apply.get("drain_ms", 0.0)), 3)
|
||||||
|
if worst_apply else None,
|
||||||
|
"outside_world_tick_ms": round(max(0.0, float(worst_interval.get("frame_ms", 0.0))
|
||||||
|
- float(worst_work.get("tick_ms", 0.0))), 3)
|
||||||
|
if worst_interval else None,
|
||||||
|
"outside_full_world_tick_ms": round(max(0.0, float(worst_interval.get("frame_ms", 0.0))
|
||||||
|
- float(commandlet_tick_by_frame.get(worst_work_frame_id, {}).get("world_tick_ms", 0.0))), 3)
|
||||||
|
if worst_interval else None,
|
||||||
|
"full_world_tick_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("world_tick_ms", 0.0)), 3),
|
||||||
|
"world_pre_actor_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("world_pre_actor_ms", 0.0)), 3),
|
||||||
|
"world_actor_phase_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("world_actor_phase_ms", 0.0)), 3),
|
||||||
|
"world_post_actor_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("world_post_actor_ms", 0.0)), 3),
|
||||||
|
"commandlet_readiness_check_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("readiness_check_ms", 0.0)), 3),
|
||||||
|
"commandlet_sleep_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("sleep_ms", 0.0)), 3),
|
||||||
|
"commandlet_loop_ms": round(float(commandlet_tick_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("loop_ms", 0.0)), 3),
|
||||||
|
"gc_duration_ms": round(float(garbage_collect_by_frame.get(
|
||||||
|
worst_work_frame_id, {}).get("duration_ms", 0.0)), 3),
|
||||||
|
"world_tick_ms": round(float(worst_work.get("tick_ms", 0.0)), 3),
|
||||||
|
"active_generation_workers": int(worst_work.get("active_generation_workers", 0)),
|
||||||
|
"active_tile_tasks": int(worst_work.get("active_tile_tasks", 0)),
|
||||||
|
"collision_gate_ms": round(float(worst_work.get("collision_gate_ms", 0.0)), 3),
|
||||||
|
"update_chunks_ms": round(float(worst_work.get("update_chunks_ms", 0.0)), 3),
|
||||||
|
"desired_rebuild_ms": round(float(worst_scheduler.get("desired_rebuild_ms", 0.0)), 3),
|
||||||
|
"pending_drain_ms": round(float(worst_work.get("pending_drain_ms", 0.0)), 3),
|
||||||
|
"post_apply_callbacks_ms": round(float(worst_work.get("post_apply_callbacks_ms", 0.0)), 3),
|
||||||
|
"collision_probe_ms": round(float(worst_work.get("collision_probe_ms", 0.0)), 3),
|
||||||
|
"visibility_reconcile_ms": round(float(worst_work.get("visibility_reconcile_ms", 0.0)), 3),
|
||||||
|
"visible_apply_probe_ms": round(float(worst_work.get("visible_apply_probe_ms", 0.0)), 3),
|
||||||
|
"lod0_ready_ms": round(float(worst_work.get("lod0_ready_ms", 0.0)), 3),
|
||||||
|
"unload_ms": round(float(worst_work.get("unload_ms", 0.0)), 3),
|
||||||
|
"steady_trace_ms": round(float(worst_work.get("steady_trace_ms", 0.0)), 3),
|
||||||
|
"modification_ms": round(float(worst_work.get("modification_ms", 0.0)), 3),
|
||||||
|
"lifecycle_audit_ms": round(float(worst_work.get("lifecycle_audit_ms", 0.0)), 3),
|
||||||
|
"trace_json_ms": round(float(worst_work.get("trace_json_ms", 0.0)), 3),
|
||||||
|
"trace_archive_serialize_ms": round(float(
|
||||||
|
worst_work.get("trace_archive_serialize_ms", 0.0)), 3),
|
||||||
|
"collision_completion_ms": round(worst_collision_completion_ms, 3),
|
||||||
|
**{key: round(float(worst_rmc.get(key, 0.0)), 3)
|
||||||
|
for key in ("component_acquire_ms", "create_section_group_ms",
|
||||||
|
"create_sections_ms", "collision_handoff_ms")},
|
||||||
|
},
|
||||||
|
"trace": str(trace.relative_to(ROOT)), "utrace": str(utrace.relative_to(ROOT)),
|
||||||
|
"abslog": str(abslog.relative_to(ROOT)), "stdout": str(stdout.relative_to(ROOT)),
|
||||||
|
}
|
||||||
|
stdout_text = stdout.read_text(encoding="utf-8", errors="replace")
|
||||||
|
gap_ms, gap_frame = endphysics_gap(stdout)
|
||||||
|
row["endphysics_to_postphysics_gap_ms_max"] = gap_ms
|
||||||
|
row["endphysics_gap_frame"] = gap_frame
|
||||||
|
failure = re.search(r"\[VoxelForgeCoreWorldTest\] failed: ([^\r\n]+)", stdout_text)
|
||||||
|
if failure:
|
||||||
|
row["world_test_failure"] = failure.group(1)
|
||||||
|
with (OUT / "runs.jsonl").open("a", encoding="utf-8") as stream:
|
||||||
|
stream.write(json.dumps(row, sort_keys=True) + "\n")
|
||||||
|
(OUT / f"{label}.summary.json").write_text(json.dumps(row, indent=2) + "\n",
|
||||||
|
encoding="utf-8")
|
||||||
|
print("[L102UnrealArrival] " + json.dumps(row, sort_keys=True), flush=True)
|
||||||
|
if exit_code:
|
||||||
|
raise SystemExit(f"Unreal commandlet failed: {stdout}; exit={exit_code}")
|
||||||
|
if not full or len(arrival) < 8:
|
||||||
|
raise SystemExit(f"Unreal arrival trace incomplete: {stdout}; exit={exit_code}")
|
||||||
|
if insights and (not utrace.is_file() or utrace.stat().st_size < 1024):
|
||||||
|
raise SystemExit(f"Unreal Insights trace missing or empty: {utrace}")
|
||||||
|
return row
|
||||||
|
|
||||||
|
|
||||||
|
def main() -> int:
|
||||||
|
parser = argparse.ArgumentParser()
|
||||||
|
parser.add_argument("--stratum", choices=("FI", "SW"), required=True)
|
||||||
|
parser.add_argument("--repeat", type=int, default=1)
|
||||||
|
parser.add_argument("--phase", choices=("probe", "before", "after", "snapshot"), default="probe")
|
||||||
|
parser.add_argument("--ready-depth", type=int, default=64)
|
||||||
|
parser.add_argument("--background-cap", type=int, choices=(0, 1), default=1)
|
||||||
|
parser.add_argument("--worker-reserve", type=int, choices=(0, 1, 2, 3), default=0)
|
||||||
|
parser.add_argument("--helper-background", type=int, choices=(0, 1), default=1)
|
||||||
|
parser.add_argument("--tile-background-low", type=int, choices=(0, 1), default=1)
|
||||||
|
parser.add_argument("--tile-background-normal", type=int, choices=(0, 1), default=0)
|
||||||
|
parser.add_argument("--startup-boost", type=int, choices=(0, 1), default=1)
|
||||||
|
parser.add_argument("--tick-logs", action="store_true")
|
||||||
|
parser.add_argument("--insights", action="store_true")
|
||||||
|
args = parser.parse_args()
|
||||||
|
if not EDITOR.is_file():
|
||||||
|
raise SystemExit(f"missing Unreal commandlet executable: {EDITOR}")
|
||||||
|
run(args.stratum, args.repeat, args.phase, args.ready_depth,
|
||||||
|
args.background_cap, args.worker_reserve, args.helper_background,
|
||||||
|
args.tile_background_low, args.tile_background_normal, args.startup_boost,
|
||||||
|
args.tick_logs, args.insights)
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__":
|
||||||
|
raise SystemExit(main())
|
||||||
Reference in new issue
Block a user