== sanity test 184c: Concurrent write and layout swap ==== 14:50:23 (1741632623) 62+0 records in 62+0 records out 65011712 bytes (65 MB) copied, 2.14371 s, 30.3 MB/s 55+0 records in 55+0 records out 57671680 bytes (58 MB) copied, 1.88401 s, 30.6 MB/s ref file size: ref1(65011712), ref2(57671680) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB) copied, 4.29052 s, 15.2 MB/s Copied 1687552 bytes before swapping layout...