== sanity test 184c: Concurrent write and layout swap ==== 12:08:08 (1785427688) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 15.1027 s, 4.7 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 9.27357 s, 5.1 MB/s ref file size: ref1(70254592), ref2(47185920) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 33.3671 s, 2.1 MB/s Copied 344064 bytes before swapping layout...