== sanity test 184c: Concurrent write and layout swap ==== 19:47:03 (1777592823) 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 1.95193 s, 18.3 MB/s 63+0 records in 63+0 records out 66060288 bytes (66 MB, 63 MiB) copied, 3.71275 s, 17.8 MB/s ref file size: ref1(35651584), ref2(66060288) 2176+0 records in 2176+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 3.45945 s, 10.3 MB/s Copied 1146880 bytes before swapping layout...