== sanity test 184c: Concurrent write and layout swap ==== 21:34:03 (1746149643) 66+0 records in 66+0 records out 69206016 bytes (69 MB) copied, 5.18075 s, 13.4 MB/s 54+0 records in 54+0 records out 56623104 bytes (57 MB) copied, 4.70476 s, 12.0 MB/s ref file size: ref1(69206016), ref2(56623104) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB) copied, 11.7537 s, 5.9 MB/s Copied 999424 bytes before swapping layout...