== sanity test 184c: Concurrent write and layout swap ==== 09:21:22 (1743513682) 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 3.95154 s, 6.1 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 5.56098 s, 8.1 MB/s ref file size: ref1(24117248), ref2(45088768) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 4.15134 s, 5.8 MB/s Copied 1196032 bytes before swapping layout...