== sanity test 184c: Concurrent write and layout swap ==== 13:13:22 (1714410802) 37+0 records in 37+0 records out 38797312 bytes (39 MB) copied, 2.44422 s, 15.9 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB) copied, 4.35841 s, 14.9 MB/s ref file size: ref1(38797312), ref2(65011712) 2368+0 records in 2368+0 records out 38797312 bytes (39 MB) copied, 4.7191 s, 8.2 MB/s Copied 999424 bytes before swapping layout...