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  "limitations": [
    "First sample is a single image-cache miss observation; no cold p95 or reliable cache-speedup estimate is inferred.",
    "The worker data root was new, shared extraction enabled and no private _shared files existed before the first submission. The normal worker data and host OS caches were untouched.",
    "Prepared artifact and distribution already existed; neither network image pulls nor OS reboot/pristine-host costs are measured.",
    "All 28 accepted commands, including other benchmark phases, cleaned up; private cache/database/settings/keys remain for evidence. Only the verified owned worker unit was stopped.",
    "The separately bounded worker unit differs from the original warm-state worker; end-to-end differences cannot be assigned only to cache state. Unit counters are not a complete host/VMM RSS guarantee.",
    "Source has shared extraction only on Linux. macOS packed create uses a fresh per-machine extraction path; its prior twenty-sample trial includes that work on an already-running host. A Linux-style cached-extraction comparison is not an available macOS path in this release.",
    "Hard resource-profile and protected release-host qualification remain incomplete."
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}