== sanity test 184c: Concurrent write and layout swap ==== 13:43:12 (1783359792) 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 3.12855 s, 17.8 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 1.85139 s, 17.6 MB/s ref file size: ref1(55574528), ref2(32505856) 3392+0 records in 3392+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 5.54763 s, 10.0 MB/s Copied 1146880 bytes before swapping layout...