== sanity test 184c: Concurrent write and layout swap ==== 09:40:32 (1743514832) 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 2.22403 s, 31.6 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB) copied, 0.741768 s, 31.1 MB/s ref file size: ref1(70254592), ref2(23068672) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB) copied, 3.88846 s, 18.1 MB/s Copied 2113536 bytes before swapping layout...