== sanity test 398n: test append with parallel DIO ======= 02:24:34 (1790663074) 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 3.85366 s, 17.4 MB/s 8+0 records in 8+0 records out 67108864 bytes (67 MB, 64 MiB) copied, 6.27411 s, 10.7 MB/s