== sanity test 77a: normal checksum read/write operation ========================================================== 13:01:55 (1787850115) 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.271358 s, 30.9 MB/s 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 1.37776 s, 6.1 MB/s