== sanity test 184c: Concurrent write and layout swap ==== 02:27:00 (1786775220) 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 8.79139 s, 6.3 MB/s 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 8.34 s, 8.3 MB/s ref file size: ref1(55574528), ref2(69206016) 3392+0 records in 3392+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 16.1309 s, 3.4 MB/s Copied 638976 bytes before swapping layout...