{"index_key": "OPQ256_1280,IVF65536_HNSW32,PQ256x8", "index_param": "nprobe=28,efSearch=56,ht=2048", "index_path": "/tmp/tmpknpzm_wj/knn.index", "size in bytes": 6518285032, "avg_search_speed_ms": 8.95315398618032, "99p_search_speed_ms": 13.199036065489048, "reconstruction error %": 19.50579285621643, "nb vectors": 23325111, "vectors dimension": 1024, "compression ratio": 14.657176571286826}