== sanity test 398n: test append with parallel DIO ======= 08:58:09 (1787835489) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.65618 s, 18.4 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 5.42512 s, 12.4 MB/s