== sanity test 184c: Concurrent write and layout swap ==== 02:29:10 (1787725750) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 9.62508 s, 7.3 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 4.97004 s, 9.1 MB/s ref file size: ref1(70254592), ref2(45088768) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 19.1702 s, 3.7 MB/s Copied 688128 bytes before swapping layout...