== sanity test 398n: test append with parallel DIO ======= 20:16:15 (1787789775) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.21979 s, 20.8 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.64488 s, 14.4 MB/s