From f47f0caa14889013436438f2bcb2c482a58e630b Mon Sep 17 00:00:00 2001 From: eunhhu Date: Fri, 9 Oct 2026 15:41:24 +0100 Subject: Research 138: the batch executor's stage 5, design 025 made: sums into cells at once in integers (join 116.0 to 110.5 ms, short of 108: what is left is the same cells' memory, read, add and write again), decide's bit found once (BFS 23.2, short of 21.5: the tail's time was its loads more than its instructions), and the batch executor's loops aligned to 64-byte lines (the hot loops' placement had swung knapsack 6% at the same instructions; the lists' loops aligned too cost the bank's queries 1-2% more instructions, so not they); against b9 matmul -36%, knapsack -28%, roots -7.6%, join -6.2%, BFS -3.9%, the executor alone, the bank queries and TPC-C (+0.7%) as they were; 025's bars and what each stage measured; 024 and CHECKPOINT say so --- research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl | 3 +++ 1 file changed, 3 insertions(+) create mode 100644 research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl (limited to 'research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl') diff --git a/research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl b/research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl new file mode 100644 index 0000000..3daa9b2 --- /dev/null +++ b/research/experiments/040-against-c/2026-10-09-tpcc-s20-16.jsonl @@ -0,0 +1,3 @@ +{"step": "load", "directory": "/dev/shm", "warehouses": 1, "rows": 568758, "generate_s": 0.56, "pure_load_s": 0.64, "sqlite_load_s": 1.58, "sqlite_page_size": 4096, "pure_resident_mib": 40.3, "sqlite_file_mib": 13.8} +{"step": "run", "system": "pure", "warehouses": 1, "terminals": 64, "transactions_per_second": 44335, "new_orders_per_minute": 1186103, "undone_new_orders": 3804, "errors": 0, "new_order": {"done": 399172, "failed": 0, "p50_us": 1408, "p99_us": 4096}, "payment": {"done": 381121, "failed": 0, "p50_us": 1344, "p99_us": 4096}, "order_status": {"done": 35542, "failed": 0, "p50_us": 272, "p99_us": 1600}, "delivery": {"done": 35494, "failed": 0, "p50_us": 1408, "p99_us": 4096}, "stock_level": {"done": 35372, "failed": 0, "p50_us": 304, "p99_us": 1792}, "server_threads": "3", "cpu_us_per_transaction": 43.1, "core_shares": {"pure-owner": 0.87, "pure-checkpoint": 0.01}, "resident_mib": 467.2, "written_bytes_per_transaction": 0.0, "device_bytes_per_transaction": null, "consistency_failures": []} +{"step": "end", "pure_resident_mib": 467.2, "pure_state_mib": 235.8, "pure_store_mib": 246.7, "sqlite_files_mib": 13.8, "grouped_sqlite_files_mib": 0.0, "pure_counts": {"bursts": 27727, "burst_events": 812069, "checkpoints": 40}} -- cgit v1.2.3