== sanity test 184c: Concurrent write and layout swap ==== 13:35:45 (1776274545) 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 0.904723 s, 67.2 MB/s 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 0.788081 s, 63.9 MB/s ref file size: ref1(60817408), ref2(50331648) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 1.01114 s, 60.1 MB/s Copied 7307264 bytes before swapping layout...