== sanity test 184c: Concurrent write and layout swap ==== 08:33:31 (1787402011) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 3.05308 s, 7.6 MB/s 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 4.58197 s, 7.8 MB/s ref file size: ref1(23068672), ref2(35651584) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 7.85043 s, 2.9 MB/s Copied 491520 bytes before swapping layout...