== sanity test 398n: test append with parallel DIO ======= 09:05:25 (1787835925) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 7.36883 s, 9.1 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 4.80239 s, 14.0 MB/s