== sanity test 184c: Concurrent write and layout swap ==== 18:09:58 (1747260598) 30+0 records in 30+0 records out 31457280 bytes (31 MB) copied, 0.486754 s, 64.6 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB) copied, 1.04461 s, 68.3 MB/s ref file size: ref1(31457280), ref2(71303168) 1920+0 records in 1920+0 records out 31457280 bytes (31 MB) copied, 0.529566 s, 59.4 MB/s Copied 7487488 bytes before swapping layout...