== sanity test 184c: Concurrent write and layout swap ==== 15:17:11 (1788635831) 44+0 records in 44+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 6.69305 s, 6.9 MB/s 24+0 records in 24+0 records out 25165824 bytes (25 MB, 24 MiB) copied, 3.10498 s, 8.1 MB/s ref file size: ref1(46137344), ref2(25165824) 2816+0 records in 2816+0 records out 46137344 bytes (46 MB, 44 MiB) copied, 12.0512 s, 3.8 MB/s Copied 278528 bytes before swapping layout...