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64 lines
2.6 KiB
JSON
64 lines
2.6 KiB
JSON
{
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"status": "historical exploratory parser-retention comparison, not the final pinned-source benchmark",
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"baselineCommit": "51e7181850b022bae2d41091fe1229accef4bd50",
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"sourceProvenance": {
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"baseline": "Only codex-rollout-file-parse.ts was loaded with git show from this commit; other bundled project dependencies came from the worktree.",
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"current": "Actual worktree parser and project dependencies at the time of the exploratory run.",
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"sourceHashes": null,
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"limitation": "Source hashes and individual heap snapshots were not saved during this run. Later hashes cannot establish the earlier source. Use the reproducible full-graph comparison for final evidence."
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},
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"environment": {
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"node": "v24.20.0",
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"v8": "13.6.233.17-node.53",
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"platform": "darwin",
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"architecture": "arm64",
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"timeZone": "America/Los_Angeles"
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},
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"instrumentation": {
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"fixture": "100,000 event_msg/token_count rows with distinct one-second timestamps, model gpt-5-codex, last usage input 100/output 10/total 110, and one session_meta row; written in batches of 5,000.",
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"clockOrigin": 1791547200000,
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"metric": "heapUsed after two forced full GCs before parse, every 35 ms during parse, and after parse",
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"isolation": "Each measurement had its own async function scope; result held on globalThis through the final sample, removed at function end, with setImmediate before the next baseline sample.",
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"ownership": "baseline claimEventKey and current canClaimEventKey accept queryIndex++ % stride === 0; current commitEventKey is a no-op",
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"interpretation": "Sampled retained memory, not absolute process peak. Timings are not a speed benchmark."
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},
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"measurements": [
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{
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"arm": "baseline",
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"stride": 1,
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"samples": 9,
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"claimedKeys": 100000,
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"countedEvents": 100000,
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"sampledRetainedPeakDeltaMiB": 45.45518493652344,
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"finalRetainedDeltaMiB": 6.44708251953125
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},
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{
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"arm": "current",
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"stride": 1,
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"samples": 10,
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"claimedKeys": 100000,
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"countedEvents": 100000,
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"sampledRetainedPeakDeltaMiB": 7.5893402099609375,
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"finalRetainedDeltaMiB": 6.328620910644531
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},
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{
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"arm": "baseline",
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"stride": 10,
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"samples": 4,
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"claimedKeys": 10000,
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"countedEvents": 10000,
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"sampledRetainedPeakDeltaMiB": 3.7055206298828125,
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"finalRetainedDeltaMiB": 0.6778564453125
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},
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{
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"arm": "current",
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"stride": 10,
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"samples": 5,
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"claimedKeys": 10000,
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"countedEvents": 10000,
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"sampledRetainedPeakDeltaMiB": 0.91009521484375,
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"finalRetainedDeltaMiB": 0.66552734375
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}
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]
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}
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