== sanity test 398n: test append with parallel DIO ======= 00:03:27 (1787371407) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.39778 s, 19.8 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.19516 s, 16.0 MB/s