{
  "source_commit": "0d2ef488949ae80cee141d679e17f10fea08e8dd",
  "kernel": "Linux 6.18.40.1-microsoft-standard-WSL2 x86_64 GNU/Linux",
  "java": "OpenJDK 17",
  "rocksdb": "0.22.0 / native 8.10.0",
  "events": 2000000,
  "parallelism": 4,
  "kafka_partitions": null,
  "mini_batch": false,
  "warmup": 0,
  "runs": 3,
  "rule": "minimum of three measured trials",
  "profile": "release + mimalloc",
  "checkpoint_interval": "1 s",
  "delivery": "generated RowData source to blackhole sink",
  "toggle": "SF_ROCKSDB_IO_URING=false/true",
  "harness_unchanged": false,
  "dependency_sources_unchanged": true,
  "excluded_query": "q6",
  "per_trial_precision_seconds": 1e-09,
  "summary_best_precision_seconds": 1e-09,
  "validation": "36 RocksDB JVM tests; cold-SST pinned-read test under syscall tracing in both modes",
  "test_only_adjustment": "Disable block cache and run pinned read before legacy MultiGet in existing Rust test; headline backend options unchanged",
  "tracing_during_measured_runs": false,
  "logical_cpus": 16,
  "baseline": "Current worktree snapshot plus a shared Kafka NOT NULL ERROR prerequisite fix, applied identically to both modes",
  "baseline_failure": "Original q4 preflight rejects native Kafka sink on nullable relational PK input",
  "baseline_choice": "Recommended current-code baseline after optional clarification; historical README revision remains an alternative",
  "benchmark_harness_changed": true,
  "runtime_io_observation": "Previous validation proves runtime toggle; no profiling in this pair",
  "supplemental_execution": null,
  "failed_runs_retained": "Previous runs retained separately; this pair is independently measured",
  "q23_recovery": null,
  "startup_gate": "No competing Java/cargo/rustc observed at launch; 8.9 GiB available",
  "execution": "Native StreamFusion only: three measured trials per query, off then on; native RocksDB preflight only",
  "native_sha256": "63403851fddcb69b43bbaf25c7ba2ae60cd394020669b98d961781bf8c74c68c",
  "started": 1790908468.834016,
  "harness_change": "Native-only generated row source at p4, blackhole sink, native RocksDB, one-second checkpoints; both transposes checked",
  "benchmark_source_sha256": "a8d5a3b035751c279faf03d45914bc42b0664cf81757aefcb8355fdca795369b",
  "generator_source_sha256": "d663ec1125c22a8bc35a2188f8208254e9cc450b0b42833e985d03d994065350"
}