== sanity test 184c: Concurrent write and layout swap ==== 15:12:28 (1790709148) 26+0 records in 26+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 4.35668 s, 6.3 MB/s 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 7.72322 s, 6.2 MB/s ref file size: ref1(27262976), ref2(48234496) 1664+0 records in 1664+0 records out 27262976 bytes (27 MB, 26 MiB) copied, 6.04691 s, 4.5 MB/s Copied 458752 bytes before swapping layout...