== sanity test 184c: Concurrent write and layout swap ==== 20:32:42 (1781051562) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 1.69813 s, 33.3 MB/s 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 1.98474 s, 35.4 MB/s ref file size: ref1(56623104), ref2(70254592) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 1.95438 s, 29.0 MB/s Copied 4931584 bytes before swapping layout...