== sanity test 398n: test append with parallel DIO ======= 01:54:26 (1790747666) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.65317 s, 18.4 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.76843 s, 14.1 MB/s