== sanity test 184c: Concurrent write and layout swap ==== 20:44:07 (1786841047) 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 1.26565 s, 19.1 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 1.28033 s, 19.7 MB/s ref file size: ref1(24117248), ref2(25165824) 1472+0 records in 1472+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 2.2057 s, 10.9 MB/s Copied 1343488 bytes before swapping layout...