== sanity test 184c: Concurrent write and layout swap ==== 07:47:18 (1787572038) 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 9.81344 s, 6.6 MB/s 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 8.57404 s, 6.5 MB/s ref file size: ref1(65011712), ref2(55574528) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 18.5355 s, 3.5 MB/s Copied 327680 bytes before swapping layout...