== sanity test 184c: Concurrent write and layout swap ==== 03:01:02 (1787814062) 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 3.71796 s, 6.8 MB/s 67+0 records in 67+0 records out 70254592 bytes (70 MB, 67 MiB) copied, 11.0934 s, 6.3 MB/s ref file size: ref1(25165824), ref2(70254592) 1536+0 records in 1536+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 6.65628 s, 3.8 MB/s Copied 589824 bytes before swapping layout...