Fr0zkaandClaude Opus 5.5
34ae1d7187
Not for assembler/world: the 8 m -> 4 m strate chunk change moves every stratum, so the SurfaceWorld spawn camera floats in a void and the L1 mesh export shrank 58.7 -> 31.7 MB. Kept for its diagnostics, the boundarySeal finding and the readable capture shading. See Linux17/REPORT.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CSFYgsdW8ejZSyiMf4qRSX
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
#!/usr/bin/env python3
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"""Measure peak per-process RSS for a build process tree under the L17 limits."""
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import os
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import subprocess
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import sys
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import time
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from pathlib import Path
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def descendants(root):
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pending = [root]
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seen = set()
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while pending:
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pid = pending.pop()
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if pid in seen:
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continue
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seen.add(pid)
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try:
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children = Path(f"/proc/{pid}/task/{pid}/children").read_text().split()
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pending.extend(int(child) for child in children)
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except (FileNotFoundError, PermissionError, ProcessLookupError):
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pass
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return seen
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def status(pid):
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try:
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fields = {}
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for line in Path(f"/proc/{pid}/status").read_text().splitlines():
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if line.startswith(("Name:", "VmRSS:", "VmSize:")):
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key, *value = line.split()
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fields[key[:-1]] = value[0] if value else ""
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return (int(fields.get("VmRSS", "0")), int(fields.get("VmSize", "0")),
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fields.get("Name", ""))
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except (FileNotFoundError, PermissionError, ProcessLookupError, ValueError):
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return None
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if len(sys.argv) < 2:
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raise SystemExit("usage: MeasureBuild.py command [arguments ...]")
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if not os.sched_getaffinity(0).issubset(set(range(12))):
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raise SystemExit("run under taskset -c 0-11")
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started = time.monotonic()
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process = subprocess.Popen(sys.argv[1:], start_new_session=True)
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peak_rss = (0, 0, "")
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peak_vms = (0, 0, "")
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while process.poll() is None:
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for pid in descendants(process.pid):
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measured = status(pid)
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if measured is None:
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continue
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rss, vms, name = measured
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if rss > peak_rss[0]:
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peak_rss = (rss, pid, name)
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if vms > peak_vms[0]:
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peak_vms = (vms, pid, name)
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time.sleep(0.1)
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exit_code = process.wait()
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elapsed = time.monotonic() - started
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print(f"[BuildTreeResources] exit_code={exit_code} wall_s={elapsed:.3f} "
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f"peak_process_rss_kib={peak_rss[0]} peak_rss_pid={peak_rss[1]} "
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f"peak_rss_name={peak_rss[2]} peak_process_vms_kib={peak_vms[0]} "
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f"peak_vms_pid={peak_vms[1]} peak_vms_name={peak_vms[2]} "
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"monitor_interval_s=0.1", flush=True)
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raise SystemExit(exit_code)
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