== sanity test 184c: Concurrent write and layout swap ==== 11:40:23 (1787413223) 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 9.87101 s, 6.6 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 6.45198 s, 7.5 MB/s ref file size: ref1(65011712), ref2(48234496) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 20.4379 s, 3.2 MB/s Copied 507904 bytes before swapping layout...