== sanity test 184c: Concurrent write and layout swap ==== 16:15:05 (1788812105) 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 4.29303 s, 13.7 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB, 36 MiB) copied, 2.98433 s, 12.6 MB/s ref file size: ref1(58720256), ref2(37748736) 3584+0 records in 3584+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 11.7184 s, 5.0 MB/s Copied 1064960 bytes before swapping layout...