== sanity test 184c: Concurrent write and layout swap ==== 09:47:14 (1747403234) 66+0 records in 66+0 records out 69206016 bytes (69 MB) copied, 0.969598 s, 71.4 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB) copied, 0.652676 s, 72.3 MB/s ref file size: ref1(69206016), ref2(47185920) 4224+0 records in 4224+0 records out 69206016 bytes (69 MB) copied, 0.98327 s, 70.4 MB/s Copied 8290304 bytes before swapping layout...