== sanity test 184c: Concurrent write and layout swap ==== 20:14:39 (1777508079) 22+0 records in 22+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 1.30093 s, 17.7 MB/s 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 2.29762 s, 18.3 MB/s ref file size: ref1(23068672), ref2(41943040) 1408+0 records in 1408+0 records out 23068672 bytes (23 MB, 22 MiB) copied, 2.45176 s, 9.4 MB/s Copied 1196032 bytes before swapping layout...