== sanity test 184c: Concurrent write and layout swap ==== 21:58:17 (1786672697) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 8.47421 s, 5.4 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 10.1532 s, 4.4 MB/s ref file size: ref1(46137344), ref2(45088768) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 16.4748 s, 2.8 MB/s Copied 917504 bytes before swapping layout...