== sanity test 184c: Concurrent write and layout swap ==== 18:54:01 (1784415241) 30+0 records in 30+0 records out 31457280 bytes (31 MB, 30 MiB) copied, 1.76487 s, 17.8 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 2.31147 s, 19.5 MB/s ref file size: ref1(31457280), ref2(45088768) 1920+0 records in 1920+0 records out 31457280 bytes (31 MB, 30 MiB) copied, 2.90593 s, 10.8 MB/s Copied 1474560 bytes before swapping layout...