== sanity test 184c: Concurrent write and layout swap ==== 08:15:32 (1778674532) 62+0 records in 62+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 8.99256 s, 7.2 MB/s 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 8.26737 s, 7.6 MB/s ref file size: ref1(65011712), ref2(62914560) 3968+0 records in 3968+0 records out 65011712 bytes (65 MB, 62 MiB) copied, 19.1154 s, 3.4 MB/s Copied 540672 bytes before swapping layout...