== sanity test 184c: Concurrent write and layout swap ==== 10:04:06 (1774533846) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 0.693227 s, 66.6 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 0.64378 s, 68.4 MB/s ref file size: ref1(46137344), ref2(44040192) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 0.751014 s, 61.4 MB/s Copied 6635520 bytes before swapping layout...