== sanity test 184c: Concurrent write and layout swap ==== 15:49:18 (1772484558) 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 5.23415 s, 13.6 MB/s 23+0 records in 23+0 records out 24117248 bytes (24 MB, 23 MiB) copied, 1.67366 s, 14.4 MB/s ref file size: ref1(71303168), ref2(24117248) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 7.50919 s, 9.5 MB/s Copied 1015808 bytes before swapping layout...