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This article mainly explains "what are the problems with the load capacity of the website server". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. let's study and learn "what are the problems with the load capacity of the website server"?

It is very easy to set up a Web server, especially on the Windows platform, many Web server software have graphical installation tools and graphical management tools. However, how to make the Web server set up can really bear a very high load?

For any website, the content can be divided into static web page and dynamic web page. Because the website can provide dynamic content, the load of the whole website includes not only the load of Web server, but also the load of back-end application software (CGI,PHP, etc.), database server and so on. At this time, how to improve the load capacity of the entire site is relatively complex. The common practice is to use the method of vertical division to divide different functions into different servers. This is because in order to achieve the best performance and load capacity of the Web server, it is necessary to adjust the server parameter settings for different purposes. Servers that provide static web pages and servers that provide dynamic access have different requirements.

Although dynamic content is becoming more and more important in more and more websites, most visits to a website are still for static data. Moreover, even for a Web server that provides dynamic content, except to meet the performance requirements of the back-end application, other issues that need to be paid attention to are the same as those of the Web server that provides static content. In many cases, servers are specifically required to provide excellent static data access, such as servers that provide pictures, music, and video clips. On the other hand, for sites with a large number of visitors, the technology of load balancing is usually used to share the load by using a server cluster composed of multiple servers. This kind of server cluster or load balancing technology has been quite mature, especially for large websites, it is widely used. In this method, each server has the same function, so it can be called horizontal partition.

A real high-load site usually combines the above methods to distribute the load to different servers in order to solve the load problem of the server. However, the visit to the website is quite random, and with the rich content of a website, the number of visits will increase rapidly. Therefore, a system administrator needs to really understand the load capacity of the Web site in order to be able to meet the increasing number of visitors.

For the following questions or similar questions:

1. How many PV can a VPS support?

2. How many IP can a VPS support?

3. How many visits can a VPS support?

4. How many people can a VPS support online?

5. Which VPS does xxx IP need?

6. Which VPS does xxx PV need?

7. Which VPS does xxx need online?

There are no answers.

The reason why there is no answer:

(1) the resources (CPU, memory, etc.) consumed by a static (HTML, JS, picture, etc.) HTTP request and a dynamic (ASP, PHP, etc.) HTTP request differ by several times to dozens of times.

(2) Note that the above is a HTTP request, not a page visit (1PV), and the number of HTTP requests generated by each visit may vary several times.

(3) the PV generated by an IP may vary several times, and your website may have a fixed proportion of IP and PV visits so that you can calculate the number of PV according to the amount of IP, even if it can be calculated, it doesn't make any sense, as described in summary and summary.

(4) different website programs have different load capacity. Generally speaking, static HTML consumes far less resources than dynamic programs (PHP, ASP, etc.). The resource consumption of different static web pages is roughly the same, and the resource gap consumed by different dynamic website programs is relatively large due to the large base.

(6) the same website program, different settings, different resources consumed. Take Discuz and DedeCMS as an example, the backend of the website is prompted for load-related settings.

(7) different Web servers have different load capacity. Generally speaking, the Web server resource consumption commonly used on Linux is as follows: APACHE > Lighttpd ≈ Nginx.

(8) in the same server environment (Web, DB), the resources consumed may be different with different setting parameters.

* Note: the "same" and "different" mentioned in each of the above articles are based on the assumption that other factors are exactly the same (obviously, this assumption is limited to theory, so it cannot be used in practical calculation at all).

Based on the above reasons, some users want to calculate the relevant resources on the condition of "the same website program" or "a certain number of PV or IP". The answer here can only be, but not.

Thank you for your reading. the above is the content of "what are the problems with the load capacity of the website server". After the study of this article, I believe you have a deeper understanding of the problem of the load capacity of the website server. the specific use of the situation also needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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