== sanity test 77a: normal checksum read/write operation ========================================================== 05:59:21 (1789984761) 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.0959196 s, 87.5 MB/s 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.482894 s, 17.4 MB/s