== sanity test 184c: Concurrent write and layout swap ==== 19:19:55 (1776208795) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.05325 s, 25.9 MB/s 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 2.70147 s, 19.8 MB/s ref file size: ref1(27262976), ref2(53477376) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.76972 s, 15.4 MB/s Copied 3047424 bytes before swapping layout...