== sanity test 184c: Concurrent write and layout swap ==== 09:12:25 (1789477945) 51+0 records in 51+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 9.3885 s, 5.7 MB/s 29+0 records in 29+0 records out 30408704 bytes (30 MB, 29 MiB) copied, 4.63721 s, 6.6 MB/s ref file size: ref1(53477376), ref2(30408704) 3264+0 records in 3264+0 records out 53477376 bytes (53 MB, 51 MiB) copied, 17.9228 s, 3.0 MB/s Copied 376832 bytes before swapping layout...