== sanity test 184c: Concurrent write and layout swap ==== 15:22:20 (1734121340) 33+0 records in 33+0 records out 34603008 bytes (35 MB) copied, 1.05196 s, 32.9 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB) copied, 1.21826 s, 31.0 MB/s ref file size: ref1(34603008), ref2(37748736) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB) copied, 2.30761 s, 15.0 MB/s Copied 1867776 bytes before swapping layout...