== sanity test 184c: Concurrent write and layout swap ==== 09:20:05 (1741699205) 33+0 records in 33+0 records out 34603008 bytes (35 MB) copied, 1.10699 s, 31.3 MB/s 67+0 records in 67+0 records out 70254592 bytes (70 MB) copied, 2.45448 s, 28.6 MB/s ref file size: ref1(34603008), ref2(70254592) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB) copied, 2.86922 s, 12.1 MB/s Copied 1884160 bytes before swapping layout...