What is the meaning of dump in computer

In computers, dump means "dump" in Chinese. It generally refers to exporting and dumping data into files or static forms, that is, saving dynamic (volatile) data into static data (persistent data). data). There is no need to dump data like programs that are originally stored in storage media (such as hard disks).

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

1. Why dump

generally refers to exporting and transferring data into a file or static form. For example, it can be understood as: dump (dump, export, save) the contents of the memory at a certain moment into a file.

Because when the program is running in the computer, it is stored on the memory, CPU, I/O and other devices. All data is dynamic (or volatile), which means that the data will be lost when it is used up or an exception occurs. If I want to get data at a certain moment (perhaps to debug program bugs or collect certain information), I need to dump it into a static (such as a file) form. Otherwise, you will never get this data.

2. What dump dumps

is to save dynamic (volatile) data as static data (persistent data). There is no need to dump data like programs that are originally stored in storage media (such as hard disks).

Now, dump is easy to understand as a noun, generally referring to the file or static form obtained in the above process. It refers to the result file of dump (verb).

Common dump scenarios include: coredump in Unix/Linux, headdump and threaddump in Java, and the tcpdump tool.

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