== sanity test 184c: Concurrent write and layout swap ==== 15:51:54 (1782244314) 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 5.86679 s, 6.6 MB/s 39+0 records in 39+0 records out 40894464 bytes (41 MB, 39 MiB) copied, 6.53049 s, 6.3 MB/s ref file size: ref1(38797312), ref2(40894464) 2368+0 records in 2368+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 14.6778 s, 2.6 MB/s Copied 262144 bytes before swapping layout...