== sanity test 184c: Concurrent write and layout swap ==== 21:11:23 (1781313083) 66+0 records in 66+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 2.86344 s, 24.2 MB/s 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 2.19354 s, 20.6 MB/s ref file size: ref1(69206016), ref2(45088768) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB, 66 MiB) copied, 4.25098 s, 16.3 MB/s Copied 3424256 bytes before swapping layout...