== sanity test 184c: Concurrent write and layout swap ==== 19:53:41 (1785801221) 46+0 records in 46+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 13.3024 s, 3.6 MB/s 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 10.9831 s, 4.2 MB/s ref file size: ref1(48234496), ref2(46137344) 2944+0 records in 2944+0 records out 48234496 bytes (48 MB, 46 MiB) copied, 18.984 s, 2.5 MB/s Copied 212992 bytes before swapping layout...