== sanity test 184c: Concurrent write and layout swap ==== 13:19:40 (1790702380) 54+0 records in 54+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 7.40106 s, 7.7 MB/s 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 6.84776 s, 5.2 MB/s ref file size: ref1(56623104), ref2(35651584) 3456+0 records in 3456+0 records out 56623104 bytes (57 MB, 54 MiB) copied, 17.0484 s, 3.3 MB/s Copied 376832 bytes before swapping layout...