== sanity test 184c: Concurrent write and layout swap ==== 02:05:08 (1761113108) 34+0 records in 34+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 2.16885 s, 16.4 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 2.54662 s, 16.1 MB/s ref file size: ref1(35651584), ref2(40894464) 2176+0 records in 2176+0 records out 35651584 bytes (36 MB, 34 MiB) copied, 3.40413 s, 10.5 MB/s Copied 1343488 bytes before swapping layout...