Comparison of CGI, FastCGI, PHP-CGI, PHP-FPM, and Spawn-FCGI in PHP environment configuration
What is CGI The full name of CGI is “Common Gateway Interface”. It is a tool for the HTTP server to “talk” to your program or that of other machines. The program must run on the network server. CGI can be written in any language as long as the language has standard input, output and environment variables. Such as php, perl, tcl, etc. What is FastCGI FastCGI is like a long-live CGI. It can be executed all the time. As long as it is activated, it will not take time to fork every time (this is the most criticized fork-and of CGI). -execute mode). It also supports distributed computing, that is, FastCGI programs can be executed on hosts other than the website server and accept requests from other website servers. FastCGI is a language-independent, scalable architecture CGI open extension. Its main behavior is to keep the CGI interpreter process in memory and thus obtain higher performance. As we all know, repeated loading of the CGI interpreter is the main reason for low CGI performance. If the CGI interpreter remains in memory and accepts FastCGI process manager scheduling, it can provide good performance, scalability, Fail-Over features, etc. FastCGI and CGI features…
Nginx, CGI, FastCGI, PHP-CGI, PHP-FPM processing flow
There are many explanations of cgi fastcgi php-fpm php-cgi on the Internet. You can view them on Baidu. The following is my own understanding Terminology: 1. web server 2. Communication protocol 3. Process, main process, sub-process 4.php parser CGI: Common Gateway Interface, a standard for communication between web servers and scripting languages. Interface, protocol [protocol] FastCGI: An upgraded version of the CGI protocol [Protocol] PHP-CGI: PHP script parser that implements the CGI interface protocol [Program] PHP-FPM: A program that manages and schedules the php-cgi process and implements the FastCGI interface protocol [Program] Webserver can only process static files and cannot do anything about dynamic scripts like PHP. It can only be left to PHP itself. So we have the following process: But the above architecture There is a performance problem. CGI will parse the configuration file of the corresponding script (such as php.ini) for each request. Loading configurations and extensions, initializing the execution environment, the performance is very poor, all with the following process: Then the program that implements the Fastcgi protocol , such as how PHP-FPM is done? First, Fastcgi will start a master process, parse the configuration file, initialize the execution environment, and then start multiple worker processes.…
Comparison of CGI, FastCGI, PHP-CGI, PHP-FPM, and Spawn-FCGI in PHP environment configuration? _PHP Tutorial
What is CGI The full name of CGI is “Common Gateway Interface”. It is a tool for the HTTP server to “talk” to your program or that of other machines. The program must run on the network server. CGI can be written in any language as long as the language has standard input, output and environment variables. Such as php, perl, tcl, etc. What is FastCGI FastCGI is like a long-live CGI. It can be executed all the time. As long as it is activated, it will not take time to fork every time (this is the most criticized fork-and of CGI). -execute mode). It also supports distributed computing, that is, FastCGI programs can be executed on hosts other than the website server and accept requests from other website servers. FastCGI is a language-independent, scalable architecture CGI open extension. Its main behavior is to keep the CGI interpreter process in memory and thus obtain higher performance. As we all know, repeated loading of the CGI interpreter is the main reason for low CGI performance. If the CGI interpreter remains in memory and accepts FastCGI process manager scheduling, it can provide good performance, scalability, Fail-Over features, etc. FastCGI and CGI features…
PHP basic CGI, FastCGI, PHP-CGI and PHP-FPM_PHP tutorial
CGI The full name of CGI is “Common Gateway Interface”. It is a tool that the HTTP server uses to “talk” to programs on your or other machines. The program must run on the network server. CGI can be written in any language as long as the language has standard input, output and environment variables. Such as php, perl, tcl, etc. FastCGI FastCGI is like a long-live CGI. It can be executed all the time. As long as it is activated, it will not take time to fork every time (this is the most criticized fork-and of CGI). -execute mode). It also supports distributed computing, that is, FastCGI programs can be executed on hosts other than the website server and accept requests from other website servers. FastCGI is a language-independent, scalable architecture CGI open extension. Its main behavior is to keep the CGI interpreter process in memory and thus obtain higher performance. As we all know, repeated loading of the CGI interpreter is the main reason for low CGI performance. If the CGI interpreter remains in memory and accepts FastCGI process manager scheduling, it can provide good performance, scalability, Fail-Over features, etc. FastCGI features How FastCGI works In the above…
Concept understanding: CGI, FastCGI, PHP-CGI and PHP-FPM_PHP tutorial
CGI The full name of CGI is “Common Gateway Interface”. It is a tool for the HTTP server to “talk” with programs on your or other machines. The program must run on the network server. CGI can be written in any language as long as the language has standard input, output and environment variables. Such as php, perl, tcl, etc. FastCGI FastCGI is like a long-live CGI. It can be executed all the time. As long as it is activated, it will not take time to fork every time (this is the most criticized fork-and of CGI). -execute mode). It also supports distributed computing, that is, FastCGI programs can be executed on hosts other than the website server and accept requests from other website servers. FastCGI is a language-independent, scalable architecture CGI open extension. Its main behavior is to keep the CGI interpreter process in memory and thus obtain higher performance. As we all know, repeated loading of the CGI interpreter is the main reason for low CGI performance. If the CGI interpreter remains in memory and accepts FastCGI process manager scheduling, it can provide good performance, scalability, Fail-Over features, etc. FastCGI features FastCGI is language independent. FastCGI’s in-process application…
Comparison of PHP running methods such as mod_php, FastCGI, PHP-FPM and others_PHP tutorial
Comparison of mod_php, FastCGI, PHP-FPM and other PHP running methods This article mainly introduces the comparison of mod_php, FastCGI, PHP-FPM and other PHP running methods. This article explains what is Friends in need can refer to the advantages and disadvantages of PHP handlers, mod_php, the advantages and disadvantages of FastCGI, the advantages and disadvantages of PHP-FPM (FastCGI Process Manager), etc. Overview I wrote this article because today I want to build an LNMP environment under Ubuntu. Nginx uses PHP-FPM, so I have sorted out the interaction between the web server and the PHP interpreter. As we all know, PHP is a cross-platform and cross-server language, which is one of the reasons why it is so popular. However, not many people know that the PHP interpreter can run in a web server in different ways. The most commonly used way for PHP is to run in Apache as a module (mod_php), which is also the default way for Apache to run PHP. But in Nginx, Nginx uses PHP-FPM. This article will introduce these concepts. If there is something wrong, please criticize and give me some advice. What are PHP handlers? The first thing to remember is that any kind of web…
Comparison of PHP running methods such as mod_php, FastCGI, PHP-FPM, etc., mod_phpfastcgi_PHP tutorial
Comparison of PHP running methods such as mod_php, FastCGI, PHP-FPM, etc., mod_phpfastcgi Overview I wrote this article because today I want to build an LNMP environment under Ubuntu. Nginx uses PHP-FPM, so I have sorted out the interaction between the web server and the PHP interpreter. As we all know, PHP is a cross-platform and cross-server language, which is one of the reasons why it is so popular. However, not many people know that the PHP interpreter can run in a web server in different ways. The most commonly used way for PHP is to run in Apache as a module (mod_php), which is also the default way for Apache to run PHP. But in Nginx, Nginx uses PHP-FPM. This article will introduce these concepts. If there is something wrong, please criticize and give me some advice. What are PHP handlers? The first thing to remember is that any kind of web server (Apache, Nginx, etc.) is designed to send static resources such as HTML and pictures to users. The web server itself cannot interpret any dynamic scripts (PHP, Python, etc.) wait). The PHP processor is used to interpret the PHP code in the web application, interpret it as HTML…
PHP: CGI, FASTCGI, php-fpm, mod_php, mod_cgi, mod_fcgid explanation-php tutorial
Some commonly used concepts can be confused if you don’t pay attention, so they are briefly listed below. 1. CGI is a universal gateway interface. The HTTP server uses such an interface program to communicate with other applications (such as PHP interpreter programs). Since CGI uses Fork and execution method, Each request requires a new CGI program to be processed, which leads to low performance. 2. FASTCGI is a memory-resident CGI. It actually manages the process of CGI programs. It accepts requests through the master process, distributes them to the worker process, and You can prefork the worker process to reduce the overhead of CGI process creation, initialization and destruction, thereby improving performance. 3. mod_php is apache’s built-in php interpretation module. It uses the prefork method and does not require additional processes for communication and application interpretation. Obviously mod_php is better than mod_cgi. The performance of this method is much better, but the disadvantage is that it binds the application and the HTTP server together. In addition, each Apache process needs to load mod_php regardless of whether the request handles static content or dynamic content, which leads to a waste of memory and reduced efficiency. In addition Changes to the…
What is CGI, FastCGI, PHP-CGI, PHP-FPM, Spawn-FCGI
What is CGI The full name of CGI is “Common Gateway Interface” (Common Gateway Interface). It is a tool for the HTTP server to “talk” to programs on your or other machines. The program must Runs on a web server. CGI can be written in any language as long as the language has standard input, output and environment variables. Such as php, perl, tcl, etc. What is FastCGI FastCGI is like a long-live CGI, which can be executed all the time As long as it is activated, it will not take time to fork every time (this is the most criticized fork-and-execute mode of CGI). It also supports distributed computing, that is, FastCGI programs can be executed on hosts other than the website server and accept requests from other website servers. FastCGI is a language-independent, scalable architecture CGI open extension. Its main behavior is to keep the CGI interpreter process in memory and thus obtain higher performance. As we all know, repeated loading of the CGI interpreter is the main reason for low CGI performance. If the CGI interpreter remains in memory and accepts FastCGI process manager scheduling, it can provide good performance, scalability, Fail-Over features, etc. Characteristics of FastCGI…
