== sanity test 184c: Concurrent write and layout swap ==== 14:35:29 (1772480129) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 4.104 s, 17.1 MB/s 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 2.13288 s, 17.2 MB/s ref file size: ref1(70254592), ref2(36700160) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 7.04249 s, 10.0 MB/s Copied 1261568 bytes before swapping layout...