== sanity test 398n: test append with parallel DIO ======= 00:05:25 (1789272325) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.66646 s, 18.3 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.88873 s, 17.3 MB/s