== sanity test 184c: Concurrent write and layout swap ==== 22:58:27 (1787799507) 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 2.77598 s, 9.1 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 5.64806 s, 7.4 MB/s ref file size: ref1(25165824), ref2(41943040) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 6.47236 s, 3.9 MB/s Copied 655360 bytes before swapping layout...