== sanity test 184c: Concurrent write and layout swap ==== 14:07:31 (1788545251) 47+0 records in 47+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 7.28279 s, 6.8 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 7.2958 s, 6.2 MB/s ref file size: ref1(49283072), ref2(45088768) 3008+0 records in 3008+0 records out 49283072 bytes (49 MB, 47 MiB) copied, 16.6135 s, 3.0 MB/s Copied 557056 bytes before swapping layout...