== sanity test 184c: Concurrent write and layout swap ==== 20:34:00 (1786754040) 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 8.34478 s, 8.4 MB/s 20+0 records in 20+0 records out 20971520 bytes (21 MB, 20 MiB) copied, 2.10678 s, 10.0 MB/s ref file size: ref1(70254592), ref2(20971520) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 21.5586 s, 3.3 MB/s Copied 704512 bytes before swapping layout...