== sanity test 184c: Concurrent write and layout swap ==== 08:00:03 (1788782403) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 11.8446 s, 5.0 MB/s 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 3.70708 s, 7.9 MB/s ref file size: ref1(58720256), ref2(29360128) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 14.2698 s, 4.1 MB/s Copied 524288 bytes before swapping layout...