== sanity test 184c: Concurrent write and layout swap ==== 00:58:02 (1763359082) 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 3.36294 s, 18.1 MB/s 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 2.79214 s, 19.9 MB/s ref file size: ref1(60817408), ref2(55574528) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 5.47377 s, 11.1 MB/s Copied 1343488 bytes before swapping layout...