== sanity test 184c: Concurrent write and layout swap ==== 14:11:32 (1789150292) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 14.658 s, 4.8 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 14.6343 s, 4.4 MB/s ref file size: ref1(70254592), ref2(65011712) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 19.3558 s, 3.6 MB/s Copied 573440 bytes before swapping layout...