== sanity test 184c: Concurrent write and layout swap ==== 01:43:33 (1788673413) 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 6.33312 s, 6.8 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 6.93204 s, 6.8 MB/s ref file size: ref1(42991616), ref2(47185920) 2624+0 records in 2624+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 11.4894 s, 3.7 MB/s Copied 835584 bytes before swapping layout...