== sanity test 184c: Concurrent write and layout swap ==== 15:03:52 (1786820632) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 6.25775 s, 7.4 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB, 36 MiB) copied, 4.78788 s, 7.9 MB/s ref file size: ref1(46137344), ref2(37748736) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 11.8578 s, 3.9 MB/s Copied 557056 bytes before swapping layout...