== sanity test 184c: Concurrent write and layout swap ==== 19:38:53 (1788219533) 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 8.79299 s, 8.1 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 6.00875 s, 7.9 MB/s ref file size: ref1(71303168), ref2(47185920) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 17.6322 s, 4.0 MB/s Copied 360448 bytes before swapping layout...