Measure computing faster: a search 2.1 times as fast, TPC-C 4.1%, four fingers found and undone (121)

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diff --git a/research/experiments/036-faster-loops/2026-10-04-four-tpcc-before-6.jsonl b/research/experiments/036-faster-loops/2026-10-04-four-tpcc-before-6.jsonl
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+{"step": "load", "directory": "/dev/shm", "warehouses": 1, "rows": 568758, "generate_s": 0.56, "pure_load_s": 0.73, "sqlite_load_s": 1.57, "sqlite_page_size": 4096, "pure_resident_mib": 39.1, "sqlite_file_mib": 13.8}
+{"step": "run", "system": "pure", "warehouses": 1, "terminals": 64, "transactions_per_second": 43135, "new_orders_per_minute": 1154167, "undone_new_orders": 3690, "errors": 0, "new_order": {"done": 388413, "failed": 0, "p50_us": 1536, "p99_us": 3200}, "payment": {"done": 370800, "failed": 0, "p50_us": 1472, "p99_us": 3072}, "order_status": {"done": 34584, "failed": 0, "p50_us": 256, "p99_us": 1024}, "delivery": {"done": 34528, "failed": 0, "p50_us": 1472, "p99_us": 3200}, "stock_level": {"done": 34385, "failed": 0, "p50_us": 288, "p99_us": 1152}, "server_threads": "3", "cpu_us_per_transaction": 44.7, "core_shares": {"pure-owner": 0.91, "pure-checkpoint": 0.01}, "resident_mib": 451.9, "written_bytes_per_transaction": 0.0, "device_bytes_per_transaction": null, "consistency_failures": []}
+{"step": "end", "pure_resident_mib": 451.9, "pure_state_mib": 230.0, "pure_store_mib": 238.7, "sqlite_files_mib": 13.8, "grouped_sqlite_files_mib": 0.0, "pure_counts": {"bursts": 25887, "burst_events": 790131, "checkpoints": 38}}