{
  "environment": {
    "python": "3.13.12",
    "sqlite": "3.50.4",
    "system": "Darwin",
    "release": "25.6.0",
    "machine": "arm64",
    "logical_cpus": 18
  },
  "method": "256-byte body; exact-key reads; 4 tenants; warm connections; no network, embedding or model calls",
  "runs": [
    {
      "initial_rows": 1000,
      "readers": 1,
      "queries": 500,
      "p50_ms": 0.0015,
      "p95_ms": 0.0029,
      "p99_ms": 0.0039,
      "wall_seconds": 0.0019,
      "queries_per_second": 265152,
      "read_errors": 0
    },
    {
      "initial_rows": 1000,
      "readers": 4,
      "queries": 2000,
      "p50_ms": 0.0285,
      "p95_ms": 0.1572,
      "p99_ms": 0.2431,
      "wall_seconds": 0.026,
      "queries_per_second": 76791,
      "read_errors": 0
    },
    {
      "initial_rows": 10000,
      "readers": 1,
      "queries": 500,
      "p50_ms": 0.0016,
      "p95_ms": 0.0035,
      "p99_ms": 0.0043,
      "wall_seconds": 0.0013,
      "queries_per_second": 388438,
      "read_errors": 0
    },
    {
      "initial_rows": 10000,
      "readers": 4,
      "queries": 2000,
      "p50_ms": 0.028,
      "p95_ms": 0.1683,
      "p99_ms": 0.2609,
      "wall_seconds": 0.0256,
      "queries_per_second": 78150,
      "read_errors": 0
    }
  ],
  "storage": [
    {
      "initial_rows": 1000,
      "database_bytes": 348160
    },
    {
      "initial_rows": 10000,
      "database_bytes": 3387392
    }
  ],
  "checks_passed": [
    "tenant_key_isolation",
    "missing_unknown_tenant_rejected",
    "untrusted_excluded",
    "expired_excluded",
    "delete_and_export",
    "other_tenant_preserved",
    "competing_writer_locked"
  ],
  "cleanup": "Temporary databases removed automatically; logical deletion is not media erasure."
}