== sanity test 184c: Concurrent write and layout swap ==== 23:01:20 (1781233280) 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 2.50853 s, 10.0 MB/s 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 4.585 s, 6.4 MB/s ref file size: ref1(25165824), ref2(29360128) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 10.2284 s, 2.5 MB/s Copied 425984 bytes before swapping layout...