== sanity test 184c: Concurrent write and layout swap ==== 13:39:58 (1789148398) 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 4.97266 s, 8.9 MB/s 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 3.63903 s, 8.9 MB/s ref file size: ref1(44040192), ref2(32505856) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 9.99729 s, 4.4 MB/s Copied 917504 bytes before swapping layout...