== sanity test 184c: Concurrent write and layout swap ==== 03:43:11 (1789458191) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 2.95729 s, 7.4 MB/s 30+0 records in 30+0 records out 31457280 bytes (31 MB, 30 MiB) copied, 4.40888 s, 7.1 MB/s ref file size: ref1(22020096), ref2(31457280) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 6.39799 s, 3.4 MB/s Copied 638976 bytes before swapping layout...