== sanity test 184c: Concurrent write and layout swap ==== 20:44:17 (1779324257) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 3.99795 s, 17.3 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 4.0979 s, 15.9 MB/s ref file size: ref1(69206016), ref2(65011712) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 6.89101 s, 10.0 MB/s Copied 1032192 bytes before swapping layout...