== sanity test 184c: Concurrent write and layout swap ==== 16:32:31 (1789158751) 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 7.00843 s, 6.9 MB/s 53+0 records in 53+0 records out 55574528 bytes (56 MB, 53 MiB) copied, 7.37782 s, 7.5 MB/s ref file size: ref1(48234496), ref2(55574528) 2944+0 records in 2944+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 13.2274 s, 3.6 MB/s Copied 704512 bytes before swapping layout...