== sanity test 184c: Concurrent write and layout swap ==== 03:18:12 (1783149492) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 3.50697 s, 16.7 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.29923 s, 17.8 MB/s ref file size: ref1(58720256), ref2(23068672) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 5.85698 s, 10.0 MB/s Copied 1425408 bytes before swapping layout...