== sanity test 184c: Concurrent write and layout swap ==== 19:51:22 (1787874682) 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 4.57047 s, 7.8 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 6.23703 s, 7.7 MB/s ref file size: ref1(35651584), ref2(48234496) 2176+0 records in 2176+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 8.1492 s, 4.4 MB/s Copied 573440 bytes before swapping layout...