== sanity test 184c: Concurrent write and layout swap ==== 12:54:13 (1784134453) 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 2.24979 s, 17.2 MB/s 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.24408 s, 18.5 MB/s ref file size: ref1(38797312), ref2(23068672) 2368+0 records in 2368+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 3.87603 s, 10.0 MB/s Copied 1507328 bytes before swapping layout...