== sanity test 184c: Concurrent write and layout swap ==== 21:33:27 (1787621607) 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 8.70168 s, 7.0 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 4.01417 s, 6.0 MB/s ref file size: ref1(60817408), ref2(24117248) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 19.5508 s, 3.1 MB/s Copied 622592 bytes before swapping layout...