== sanity test 184c: Concurrent write and layout swap ==== 18:40:09 (1746139209) 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 4.2814 s, 16.4 MB/s 59+0 records in 59+0 records out 61865984 bytes (62 MB) copied, 3.47987 s, 17.8 MB/s ref file size: ref1(70254592), ref2(61865984) 4288+0 records in 4288+0 records out 70254592 bytes (70 MB) copied, 7.81143 s, 9.0 MB/s Copied 1277952 bytes before swapping layout...