== sanity test 184c: Concurrent write and layout swap ==== 09:49:00 (1747403340) 58+0 records in 58+0 records out 60817408 bytes (61 MB) copied, 0.887418 s, 68.5 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB) copied, 0.341459 s, 73.7 MB/s ref file size: ref1(60817408), ref2(25165824) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB) copied, 0.885781 s, 68.7 MB/s Copied 5423104 bytes before swapping layout...