== sanity test 184c: Concurrent write and layout swap ==== 15:58:33 (1789070313) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 5.58285 s, 6.6 MB/s 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 9.86053 s, 6.6 MB/s ref file size: ref1(36700160), ref2(65011712) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 9.91412 s, 3.7 MB/s Copied 458752 bytes before swapping layout...