== sanity test 184c: Concurrent write and layout swap ==== 11:33:20 (1786116800) 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 2.188 s, 18.7 MB/s 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 3.70216 s, 17.0 MB/s ref file size: ref1(40894464), ref2(62914560) 2496+0 records in 2496+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 4.54225 s, 9.0 MB/s Copied 1409024 bytes before swapping layout...