== sanity test 184c: Concurrent write and layout swap ==== 07:20:30 (1788607230) 58+0 records in 58+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 9.55763 s, 6.4 MB/s 36+0 records in 36+0 records out 37748736 bytes (38 MB, 36 MiB) copied, 5.12172 s, 7.4 MB/s ref file size: ref1(60817408), ref2(37748736) 3712+0 records in 3712+0 records out 60817408 bytes (61 MB, 58 MiB) copied, 16.5578 s, 3.7 MB/s Copied 622592 bytes before swapping layout...