== sanity test 184c: Concurrent write and layout swap ==== 03:42:46 (1780818166) 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 3.44308 s, 17.7 MB/s 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 2.72516 s, 18.1 MB/s ref file size: ref1(60817408), ref2(49283072) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 6.06718 s, 10.0 MB/s Copied 933888 bytes before swapping layout...