== sanity test 184c: Concurrent write and layout swap ==== 13:53:00 (1788457980) 43+0 records in 43+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 5.72867 s, 7.9 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 13.0814 s, 5.5 MB/s ref file size: ref1(45088768), ref2(71303168) 2752+0 records in 2752+0 records out 45088768 bytes (45 MB, 43 MiB) copied, 15.147 s, 3.0 MB/s Copied 344064 bytes before swapping layout...