== sanity test 184c: Concurrent write and layout swap ==== 07:55:39 (1717156539) 60+0 records in 60+0 records out 62914560 bytes (63 MB) copied, 0.790348 s, 79.6 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 0.299654 s, 84.0 MB/s ref file size: ref1(62914560), ref2(25165824) 3840+0 records in 3840+0 records out 62914560 bytes (63 MB) copied, 0.757176 s, 83.1 MB/s Copied 6225920 bytes before swapping layout...