== sanity test 184c: Concurrent write and layout swap ==== 23:18:44 (1787887124) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 10.0729 s, 6.9 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 6.55386 s, 6.2 MB/s ref file size: ref1(69206016), ref2(40894464) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 22.7716 s, 3.0 MB/s Copied 540672 bytes before swapping layout...