== sanity test 184c: Concurrent write and layout swap ==== 19:26:18 (1790119578) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 9.70544 s, 7.2 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 5.43002 s, 6.0 MB/s ref file size: ref1(70254592), ref2(32505856) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 19.7279 s, 3.6 MB/s Copied 704512 bytes before swapping layout...