== sanity test 184c: Concurrent write and layout swap ==== 19:59:13 (1786492753) 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 1.72746 s, 17.0 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 1.60929 s, 15.6 MB/s ref file size: ref1(29360128), ref2(25165824) 1792+0 records in 1792+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 3.12121 s, 9.4 MB/s Copied 1163264 bytes before swapping layout...