== sanity test 184c: Concurrent write and layout swap ==== 18:07:55 (1715206075) 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 0.938493 s, 74.9 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB) copied, 0.319159 s, 72.3 MB/s ref file size: ref1(70254592), ref2(23068672) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB) copied, 0.89493 s, 78.5 MB/s Copied 8470528 bytes before swapping layout...