== sanity test 184c: Concurrent write and layout swap ==== 07:35:27 (1784288127) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.32648 s, 17.4 MB/s 57+0 records in 57+0 records out 59768832 bytes (60 MB, 57 MiB) copied, 3.39923 s, 17.6 MB/s ref file size: ref1(23068672), ref2(59768832) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 2.37784 s, 9.7 MB/s Copied 1277952 bytes before swapping layout...