== sanity test 184c: Concurrent write and layout swap ==== 21:46:53 (1781833613) 33+0 records in 33+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 1.90841 s, 18.1 MB/s 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 2.34555 s, 19.7 MB/s ref file size: ref1(34603008), ref2(46137344) 2112+0 records in 2112+0 records out 34603008 bytes (35 MB, 33 MiB) copied, 3.28867 s, 10.5 MB/s Copied 1376256 bytes before swapping layout...