== sanity test 184c: Concurrent write and layout swap ==== 08:06:47 (1726834007) 66+0 records in 66+0 records out 69206016 bytes (69 MB) copied, 2.84882 s, 24.3 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB) copied, 1.73829 s, 23.5 MB/s ref file size: ref1(69206016), ref2(40894464) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB) copied, 6.77314 s, 10.2 MB/s Copied 1392640 bytes before swapping layout...