The programming principle of Flash is that it can only write 1 as 0, but cannot write 0 as 1. Therefore, before programming Flash, the corresponding block must be erased, and the erasure process is to write all bits as 1, turning all bytes in the block into 0xFF. Thus, programming can be said to … Read more
Memory, CPU, bandwidth, and disk usage are common aspects to monitor in Linux operations. Understanding how to check this information is a necessary skill. Below are several commonly used commands. General CPU and Memory top: Usage command: top Top Half %us Indicates the CPU usage rate of user space programs (not scheduled by nice) %sy … Read more
When purchasing server hardware, many factors need to be considered, such as the number of processors, available memory, and total storage capacity. When comparing servers offered by vendors, buyers should carefully evaluate eight important features. Processor One of the most important components to consider when purchasing server hardware is the processor, which performs data calculations. … Read more
To speed up operations and reduce disk I/O, the kernel typically caches as much memory as possible, which is known as Cache Memory. By design, pages containing cached data can be repurposed as needed (for example, by applications). Cache memory is not automatically released after a program finishes running. This can lead to a situation … Read more
Click the blue text Follow us Author | Bi Rong Introduction There are no specialized cells dedicated to specific memories. ——Karl Lashley We may easily remember a birthday party, the friends who attended, the taste of the cake, and the gifts, but it is difficult to recall what we did the day after the birthday. … Read more