== sanity test 184c: Concurrent write and layout swap ==== 22:33:30 (1787625210) 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 7.58736 s, 8.6 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 5.12664 s, 9.2 MB/s ref file size: ref1(65011712), ref2(47185920) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 21.1005 s, 3.1 MB/s Copied 540672 bytes before swapping layout...