mirror of
https://github.com/rcourtman/Pulse.git
synced 2026-09-10 02:25:56 +00:00
pulse-triage[bot]
92c3297049
The exact release tree retains a failed paired UUID benchmark check, while push CI cannot repeat that comparison. Provide a reviewed-source route to collect the requested four-condition hosted layout evidence instead of repeating local samples or changing product order. Fix source/tree/toolchain identities, isolate diagnostic controls, alternate ten rounds, and retain partial receipts without publishing binaries. Execution still needs separate operator authority; collection success does not dispose of the failed gate. Nine focused harness tests and existing benchmark contract tests pass. Change-source: pulse-maintainer
163 lines
7.5 KiB
Python
163 lines
7.5 KiB
Python
#!/usr/bin/env python3
|
|
"""One fixed diagnostic experiment; never a release qualification verdict."""
|
|
import argparse
|
|
import hashlib
|
|
import json
|
|
import os
|
|
from pathlib import Path
|
|
import re
|
|
import subprocess
|
|
import tempfile
|
|
from datetime import datetime, timezone
|
|
|
|
BASE = '5845692daf302a1524c2ca8fe6d06339ae7f8a24'
|
|
CANDIDATE = '57f3b6401a6553efaa7646d5f1db446a2725b9dc'
|
|
TREES = {BASE: 'dedef52efe4fc28d1c05c9d957a0cc439f54db22',
|
|
CANDIDATE: '7c2765cb06f424ce49647b33a5ebf3ade375e828'}
|
|
SOURCE_HASHES = {
|
|
'http_metrics.go': '81fc091698cf7c1b011af70776dad53db3aa735367e51f4cda8a9bbf4b2b8527',
|
|
'http_metrics_bench_test.go': '1562ae806264d8b22aece08fdadb7284760ae2374864479c7225b5051b5ba6b2',
|
|
}
|
|
LABELS = ('base', 'candidate', 'base-reordered', 'candidate-reordered')
|
|
SYMBOLS = r'api\.(normalizeSegment|BenchmarkNormalizeSegment)'
|
|
BENCH = '^BenchmarkNormalizeSegment$/^uuid$'
|
|
ROUNDS = 10
|
|
|
|
|
|
def digest(path):
|
|
with path.open('rb') as stream:
|
|
return hashlib.file_digest(stream, 'sha256').hexdigest()
|
|
|
|
|
|
def run(args, cwd=None):
|
|
return subprocess.check_output(args, cwd=cwd, text=True, stderr=subprocess.STDOUT)
|
|
|
|
|
|
def capture(args, output, cwd=None):
|
|
# Preserve partial diagnostics on failure as well as successful output.
|
|
with output.open('w') as stream:
|
|
subprocess.run(args, cwd=cwd, stdout=stream, stderr=subprocess.STDOUT, check=True)
|
|
|
|
|
|
def reorder(source):
|
|
"""Same declaration-only intervention as Core's retained controlled run."""
|
|
for marker in ('func normalizeSegment(', 'func isNumeric(', 'func normalizeRoute('):
|
|
if source.count(marker) != 1:
|
|
raise ValueError('unexpected declaration layout')
|
|
start = source.index('func normalizeSegment(')
|
|
end = source.index('func isNumeric(', start)
|
|
block = source[start:end]
|
|
remainder = source[:start] + source[end:]
|
|
index = remainder.index('func normalizeRoute(')
|
|
return remainder[:index] + block + remainder[index:]
|
|
|
|
|
|
def order(round_number):
|
|
return LABELS if round_number % 2 else tuple(reversed(LABELS))
|
|
|
|
|
|
def bench_args(binary, warmup=False):
|
|
return [str(binary), '-test.run=^$', '-test.bench=' + BENCH,
|
|
'-test.cpu=4', '-test.benchmem', '-test.count=1',
|
|
'-test.benchtime=' + ('1x' if warmup else '300ms'), '-test.timeout=2m']
|
|
|
|
|
|
def validate_sample(sample):
|
|
rows = [line for line in sample.splitlines() if line.startswith('Benchmark')]
|
|
if len(rows) != 1 or not re.fullmatch(
|
|
r'BenchmarkNormalizeSegment/uuid-4\s+[1-9][0-9]*\s+[0-9.]+ ns/op\s+'
|
|
r'[0-9]+ B/op\s+[0-9]+ allocs/op', rows[0]):
|
|
raise ValueError('missing, duplicate, or out-of-scope benchmark sample')
|
|
|
|
|
|
def execute(repo, output):
|
|
output.mkdir(parents=True, exist_ok=False) # never overwrite a previous attempt
|
|
os.environ.update(GOTOOLCHAIN='local', GOMAXPROCS='4', GOFLAGS='', GOENV='off')
|
|
if run(['go', 'version']).strip() != 'go version go1.26.7 linux/amd64':
|
|
raise ValueError('requires exact hosted experiment toolchain go1.26.7 linux/amd64')
|
|
metadata = {
|
|
'purpose': 'diagnostic-only; no gate disposition or release candidate',
|
|
'rounds': ROUNDS, 'gomaxprocs': 4, 'benchtime': '300ms',
|
|
'workflow_sha': os.environ.get('GITHUB_SHA'),
|
|
'run_id': os.environ.get('GITHUB_RUN_ID'),
|
|
'run_attempt': os.environ.get('GITHUB_RUN_ATTEMPT'),
|
|
'conditions': {}, 'complete': False,
|
|
}
|
|
|
|
def save():
|
|
(output / 'metadata.json').write_text(json.dumps(metadata, indent=2) + '\n')
|
|
|
|
save()
|
|
capture(['go', 'version'], output / 'go-version.txt')
|
|
capture(['go', 'env', 'GOOS', 'GOARCH', 'GOVERSION', 'GOTOOLCHAIN', 'GOAMD64',
|
|
'CGO_ENABLED', 'GOFLAGS'], output / 'go-env.txt')
|
|
capture(['lscpu'], output / 'cpu.txt')
|
|
capture(['uname', '-smr'], output / 'kernel.txt')
|
|
# All four builds complete before warm-up/measurement; no compilation drift.
|
|
with tempfile.TemporaryDirectory(prefix='uuid-layout-') as temporary:
|
|
work = Path(temporary)
|
|
binaries = {}
|
|
for label in LABELS:
|
|
revision = CANDIDATE if label.startswith('candidate') else BASE
|
|
tree = run(['git', 'rev-parse', revision + '^{tree}'], repo).strip()
|
|
if tree != TREES[revision]:
|
|
raise ValueError('unexpected source tree')
|
|
source = work / label
|
|
source.mkdir()
|
|
archive = work / (label + '.tar')
|
|
subprocess.run(['git', 'archive', '-o', str(archive), revision], cwd=repo, check=True)
|
|
subprocess.run(['tar', '-xf', str(archive), '-C', str(source)], check=True)
|
|
for filename, expected in SOURCE_HASHES.items():
|
|
if digest(source / 'internal/api' / filename) != expected:
|
|
raise ValueError('unexpected HTTP source content')
|
|
metrics = source / 'internal/api/http_metrics.go'
|
|
original = metrics.read_text()
|
|
if label.endswith('-reordered'):
|
|
metrics.write_text(reorder(original))
|
|
# Retain the exact intervention, not the experimental executable.
|
|
(output / (label + '-http_metrics.go')).write_text(metrics.read_text())
|
|
stub = source / 'internal/api/frontend-modern/dist/index.html'
|
|
stub.parent.mkdir(parents=True, exist_ok=True)
|
|
stub.write_text('<!doctype html><title>ci embed stub</title>\n')
|
|
binary = work / (label + '.test')
|
|
capture(['go', 'test', '-c', '-o', str(binary), './internal/api'],
|
|
output / (label + '-build.txt'), source)
|
|
binaries[label] = binary
|
|
metadata['conditions'][label] = {
|
|
'commit': revision, 'tree': tree, 'binary_sha256': digest(binary),
|
|
'experimental': label.endswith('-reordered'),
|
|
'http_metrics_sha256': digest(metrics), 'embed_stub_sha256': digest(stub),
|
|
}
|
|
save()
|
|
capture(['go', 'tool', 'objdump', '-s', SYMBOLS, str(binary)],
|
|
output / (label + '-http.asm'))
|
|
# Restrict retained symbols to the HTTP normaliser experiment.
|
|
symbols = run(['go', 'tool', 'nm', str(binary)])
|
|
(output / (label + '-symbols.txt')).write_text('\n'.join(
|
|
line for line in symbols.splitlines() if re.search(SYMBOLS, line)) + '\n')
|
|
for label in LABELS:
|
|
capture(bench_args(binaries[label], warmup=True), output / (label + '-warmup.txt'))
|
|
for round_number in range(1, ROUNDS + 1):
|
|
for label in order(round_number):
|
|
with (output / 'order.jsonl').open('a') as log:
|
|
log.write(json.dumps({'round': round_number, 'condition': label,
|
|
'at': datetime.now(timezone.utc).isoformat(),
|
|
'load': os.getloadavg()}) + '\n')
|
|
sample_path = output / f'{label}-{round_number:02}.txt'
|
|
capture(bench_args(binaries[label]), sample_path)
|
|
sample = sample_path.read_text()
|
|
validate_sample(sample)
|
|
with (output / (label + '.txt')).open('a') as aggregate:
|
|
aggregate.write(sample)
|
|
metadata['complete'] = True
|
|
save()
|
|
files = sorted(path for path in output.iterdir() if path.is_file())
|
|
(output / 'SHA256SUMS').write_text(''.join(f'{digest(path)} {path.name}\n' for path in files))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
parser = argparse.ArgumentParser(description=__doc__)
|
|
parser.add_argument('--output', required=True, type=Path)
|
|
args = parser.parse_args()
|
|
execute(Path(__file__).resolve().parents[1], args.output.resolve())
|