Why caching mechanism is needed

The reason is: the caching mechanism can reduce user waiting time and improve user experience. It can also reduce network bandwidth consumption and reduce server pressure. You can also use caching to generate minimal network traffic, which will effectively reduce operating costs. However, it should be noted that improper use of cache will lead to "dirty data", resulting in abnormal user data. Therefore, data consistency and timeliness issues need to be handled carefully when using the caching mechanism.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

The caching mechanism is a technology that trades space for time. It exists in many places in the computer. It is used to save some common data in slow devices in fast devices. When retrieving data, it can be retrieved directly from fast devices. Win. The caching mechanism can reduce user waiting time and improve user experience. It can also reduce network bandwidth consumption and reduce server pressure.

For website operators and users, bandwidth represents a cost, and excessive bandwidth consumption requires additional fees. If caching can be used, only minimal network traffic will be generated, which will effectively reduce operating costs. In addition, caching can save data locally, reducing requests to the origin server and reducing server pressure. This can also reduce the frequency of crawling for search engine crawler robots based on the expiration mechanism, and can also effectively reduce the pressure on the server.

But it should be noted that improper use of cache will cause "dirty data", resulting in abnormal user data. Therefore, data consistency and timeliness issues need to be handled carefully when using the caching mechanism.

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