{ "measuredAt": "2026-11-02T10:48:59.787Z", "environment": { "execution": "compiled JavaScript", "node": "v24.14.1", "platform": "linux", "arch": "x64", "cpu": "Intel Xeon E312xx (Sandy Bridge, IBRS update)", "logicalCpus": 12, "totalMemoryGiB": 35.22977066040039, "loadAverage": [ 4.84, 4.64, 4.01 ] }, "methodology": { "scope": "Local loopback HTTP, deterministic synthetic content, isolated process per scenario; no production traffic", "upstreamDelayMs": 20, "rawSourceBaseline": "Raw local file; anonymization and gzip repeated every request; no transformed-result cache. Not a complete legacy deployment comparison.", "measurements": "Cold request then 3 warmups, 2 batches each at concurrency 1 (16 requests) and 8 (32 requests). CPU and RSS include server, loopback client, hashing and Node runtime; worker-thread CPU included. First cold request also includes worker startup when applicable.", "limitations": "Warm OS page cache; no TLS, proxy, GitHub bandwidth, database auth or real-world RTT. Small sample p95 is descriptive, not a capacity SLA. Fresh metadata indexes; not a full-size index test.", "legacyComparison": "Existing large-file transformedFile cache enabled, isolated TMPDIR, local source file, no Redis coordination or database authorization." }, "scenarios": [ { "size": 2097152, "changed": false, "mode": "legacy-transform", "encoding": "gzip", "binary": false, "cold": { "ms": 3637.6617370000004, "ttfb": 3425.310189, "bytes": 799931, "wallMs": 3672.4500099999996, "cpuMs": 4809.962 }, "batches": [ { "concurrency": 1, "repeat": 0, "requests": 16, "elapsedMs": 4325.215086, "requestsPerSecond": 3.6992379990047968, "p50Ms": 259.56264199999896, "p95Ms": 326.0954209999991, "maxMs": 326.0954209999991, "ttfbP95Ms": 100.11303399999997, "cpuMs": 7363.262, "cpuMsPerRequest": 460.203875, "peakRssMiB": 269.8828125, "eventLoopP95Ms": 11.419647, "wireBytes": 12798896, "latenciesMs": [ 271.195162, 326.0954209999991, 325.21412000000055, 268.0655480000005, 254.55466100000012, 262.5113799999999, 254.16493199999968, 256.40336600000046, 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839.5880639999996, 822.5235159999975, 800.3038809999998, 836.5671479999983, 794.8266949999997, 782.2958900000012, 780.0966379999991, 797.6877550000027, 833.3983110000008, 831.9884109999985 ] } ], "upstreamFills": 1, "source": null, "results": null, "metrics": [ { "name": "inspected_changed", "traffic": "background", "count": 100, "bytes": 209715200, "ms": 4202.822877000019, "b0": 0, "b1": 0, "b2": 34, "b3": 65, "b4": 0, "b5": 1, "b6": 0 }, { "name": "legacy_result_hit", "traffic": "background", "count": 99, "bytes": 0, "ms": 0, "b0": 99, "b1": 0, "b2": 0, "b3": 0, "b4": 0, "b5": 0, "b6": 0 }, { "name": "legacy_result_miss", "traffic": "background", "count": 1, "bytes": 0, "ms": 0, "b0": 1, "b1": 0, "b2": 0, "b3": 0, "b4": 0, "b5": 0, "b6": 0 } ], "wireBytesPerResponse": 799783, "uncompressedBytes": 2115777, "verifiedResponses": 100 } ], "completedAt": "2026-11-02T10:49:41.535Z", "assertions": "All 200 response bodies verified against expected output or the validated wire digest" }