stats/summary.json

{
 "configs": {
  "arcgen_v1": {
   "records": 399990,
   "shards": 1,
   "tasks": 400,
   "tasks_bg_layer_off": 18,
   "tasks_fg_layer_off": 14,
   "with_steps": 305616
  },
  "arcgen_v2": {
   "records": 487091,
   "shards": 1,
   "tasks": 500,
   "tasks_bg_layer_off": 45,
   "tasks_fg_layer_off": 80,
   "with_steps": 486091
  },
  "rearc": {
   "dropped_oversize": 129,
   "records": 399871,
   "shards": 1,
   "tasks": 400,
   "with_steps": 270854
  }
 },
 "shard_size": 0,
 "total_records": 1286952,
 "total_with_steps": 1062561
}