== sanity test 184c: Concurrent write and layout swap ==== 10:15:40 (1787408140) 60+0 records in 60+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 10.7232 s, 5.9 MB/s 42+0 records in 42+0 records out 44040192 bytes (44 MB, 42 MiB) copied, 7.91674 s, 5.6 MB/s ref file size: ref1(62914560), ref2(44040192) 3840+0 records in 3840+0 records out 62914560 bytes (63 MB, 60 MiB) copied, 23.2348 s, 2.7 MB/s Copied 638976 bytes before swapping layout...