== sanity test 184c: Concurrent write and layout swap ==== 06:14:19 (1788776059) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 7.8629 s, 7.2 MB/s 30+0 records in 30+0 records out 31457280 bytes (31 MB, 30 MiB) copied, 4.69372 s, 6.7 MB/s ref file size: ref1(56623104), ref2(31457280) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 17.7179 s, 3.2 MB/s Copied 524288 bytes before swapping layout...