== sanity test 184c: Concurrent write and layout swap ==== 11:57:30 (1788883050) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 1.49619 s, 18.2 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 2.1189 s, 18.3 MB/s ref file size: ref1(27262976), ref2(38797312) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 3.17482 s, 8.6 MB/s Copied 1523712 bytes before swapping layout...