== sanity test 184c: Concurrent write and layout swap ==== 01:17:46 (1781241466) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.49094 s, 15.5 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 2.50801 s, 15.5 MB/s ref file size: ref1(23068672), ref2(38797312) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 2.83394 s, 8.1 MB/s Copied 1130496 bytes before swapping layout...