== sanity test 184c: Concurrent write and layout swap ==== 15:25:02 (1780341902) 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 6.69163 s, 9.7 MB/s 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 7.05188 s, 8.6 MB/s ref file size: ref1(65011712), ref2(60817408) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 16.3679 s, 4.0 MB/s Copied 458752 bytes before swapping layout...