== sanity test 184c: Concurrent write and layout swap ==== 14:34:15 (1787596455) 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 6.0829 s, 7.1 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 5.05638 s, 6.4 MB/s ref file size: ref1(42991616), ref2(32505856) 2624+0 records in 2624+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 10.7751 s, 4.0 MB/s Copied 851968 bytes before swapping layout...