== sanity test 184c: Concurrent write and layout swap ==== 17:24:19 (1758835459) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 2.87378 s, 19.7 MB/s 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.26035 s, 21.6 MB/s ref file size: ref1(56623104), ref2(27262976) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 5.31548 s, 10.7 MB/s Copied 1327104 bytes before swapping layout...