== sanity test 184c: Concurrent write and layout swap ==== 09:43:57 (1747403037) 30+0 records in 30+0 records out 31457280 bytes (31 MB) copied, 0.402008 s, 78.3 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB) copied, 0.81865 s, 79.4 MB/s ref file size: ref1(31457280), ref2(65011712) 1920+0 records in 1920+0 records out 31457280 bytes (31 MB) copied, 0.405126 s, 77.6 MB/s Copied 9584640 bytes before swapping layout...