== sanity test 184c: Concurrent write and layout swap ==== 17:59:16 (1782770356) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.51726 s, 18.0 MB/s 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 3.76125 s, 18.4 MB/s ref file size: ref1(27262976), ref2(69206016) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 2.95137 s, 9.2 MB/s Copied 1310720 bytes before swapping layout...