== sanity test 184c: Concurrent write and layout swap ==== 12:15:15 (1761322515) 35+0 records in 35+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 0.718627 s, 51.1 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 0.844578 s, 52.1 MB/s ref file size: ref1(36700160), ref2(44040192) 2240+0 records in 2240+0 records out 36700160 bytes (37 MB, 35 MiB) copied, 0.740247 s, 49.6 MB/s Copied 5767168 bytes before swapping layout...