== sanity test 184c: Concurrent write and layout swap ==== 09:25:53 (1786022753) 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 5.47248 s, 8.0 MB/s 49+0 records in 49+0 records out 51380224 bytes (51 MB, 49 MiB) copied, 7.42678 s, 6.9 MB/s ref file size: ref1(44040192), ref2(51380224) 2688+0 records in 2688+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 16.3371 s, 2.7 MB/s Copied 589824 bytes before swapping layout...