== sanity test 184c: Concurrent write and layout swap ==== 03:33:18 (1783150398) 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 3.23077 s, 16.6 MB/s 41+0 records in 41+0 records out 42991616 bytes (43 MB, 41 MiB) copied, 2.57473 s, 16.7 MB/s ref file size: ref1(53477376), ref2(42991616) 3264+0 records in 3264+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 5.34137 s, 10.0 MB/s Copied 1458176 bytes before swapping layout...