== sanity test 184c: Concurrent write and layout swap ==== 02:53:48 (1788850428) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 5.80991 s, 12.1 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 3.77121 s, 13.1 MB/s ref file size: ref1(70254592), ref2(49283072) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 10.1874 s, 6.9 MB/s Copied 1081344 bytes before swapping layout...