== sanity test 184c: Concurrent write and layout swap ==== 17:57:50 (1746136670) 25+0 records in 25+0 records out 26214400 bytes (26 MB) copied, 1.18641 s, 22.1 MB/s 66+0 records in 66+0 records out 69206016 bytes (69 MB) copied, 3.24829 s, 21.3 MB/s ref file size: ref1(26214400), ref2(69206016) 1600+0 records in 1600+0 records out 26214400 bytes (26 MB) copied, 3.19014 s, 8.2 MB/s Copied 1327104 bytes before swapping layout...