== sanity test 184c: Concurrent write and layout swap ==== 15:19:40 (1789499980) 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 5.74567 s, 7.3 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 4.22335 s, 5.7 MB/s ref file size: ref1(41943040), ref2(24117248) 2560+0 records in 2560+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 15.6479 s, 2.7 MB/s Copied 589824 bytes before swapping layout...