FastCGI provides a high-performance alternative to the Common Gateway Interface CGIa standard way of interfacing external applications with Web servers that has been supported as part of the IIS feature-set since the very first release. CGI programs are executables launched by the web server for each request in order to process the request and generate dynamic responses that are sent back to the client.
Apache vs Nginx Performance: Optimization Techniques Apache vs Nginx Performance: Its daemon process on Linux systems has the name httpd meaning simply http process — and comes preinstalled in major Linux distributions.
It is still the most-used web server software according to W3techs. However, according to those reports which show some trends of the last decade and comparisons to other solutionsits market share is decreasing. Nginx — pronounced engine x — was released in by Igor Sysoevwith the explicit intent to outperform Apache.
At first, it was mostly used as a supplement to Apache, mostly for serving static files, but it has been steadily growing, as it has been evolving to deal with the full spectrum of web server tasks.
CDNs and video streaming providers use it to build their content delivery systems where performance is critical.
Apache has been around for a long time, and it has a big choice of modules. Managing Apache servers is known to be user-friendly. Dynamic module loading allows for different modules to be compiled and added to the Apache stack without recompiling the main server binary. Oftentimes, modules will be in Linux distro repositories, and after installing them through system package managers, they can be gracefully added to the stack with commands like a2enmod.
This kind of flexibility has yet to be seen with Nginx. Every directory on a server served by Apache can have its own. Nginx not only has no equivalent solution, but discourages such usage due to performance hits. Server vendors market share — Data by Netcraft LiteSpeedor LSWS, is one server contender that has a level of flexibility that can compare to Apache, while not sacrificing performance.
It was planned as a drop-in replacement for Apache, and it works with cPanel and Plesk.
Standard and Enterprise come with an optional caching solution comparable to Varnish, LSCache, which is built into the server itselfand can be controlled, with rewrite rules, in.
This, along with its event-driven architecture, makes it a solid contender, targeting primarily performance-oriented hosting providersbut it could be worth setting up even for smaller servers or websites. Hardware Considerations When optimizing our system, we cannot emphasize enough giving due attention to our hardware setup.
Whichever of these solutions we choose for our setup, having enough RAM is critical. The effect of this is increased latency every time this memory is accessed. This takes us to the second point — the hard disk space. Using fast SSD storage is another critical factor of our website speed.
To dive in deeper into the hardware side of performance tuning, Dropbox has a good article. Monitoring One practical way to monitor our current server stack performance, per process in detail, is htopwhich works on Linux, Unix and macOS, and gives us a colored overview of our processes.
Other monitoring tools are New Relica premium solution with a comprehensive set of tools, and Netdataan open-source solution which offers great extensibility, fine-grained metrics and a customizable web dashboard, suitable for both little VPS systems and monitoring a network of servers.
It can send alarms for any application or system process via email, Slack, pushbullet, Telegram, Twilio etc. Monit is another, headless, open-source tool which can monitor the system, and can be configured to alert us, or restart certain processes, or reboot the system when some conditions are met.
This article explains how to set them both up, and here we have some more advanced tips for AB, while an in-depth look at Siege can be found here. If you prefer a web interface, there is Locusta Python-based tool that comes in very handy for testing website performance.
After we install Locust, we need to create a locustfile in the directory from which we will launch it: If more connections came in, more worker processes were created to handle them. The costs of spawning new processes were high, and Apache developers devised a prefork mode, with a pre-spawned number of processes.
Each process was only able to handle a single incoming connection.
A small Locust load test that shows spawning of huge number of Apache processes to handle the incoming traffic. It can get resource-inefficient. Version 2 of Apache brought another two MPMs that try to solve the issues that prefork mode has.
Each child process creates a fixed number of server threads as specified in the ThreadsPerChild directive, as well as a listener thread which listens for connections and passes them to a server thread for processing when they arrive.Tonino Jankov introduces techniques to improve Apache and Nginx web server performance, explaining the theory behind those techniques.
alarms for any application or system process via email. FastCGI provides a high-performance alternative to the Common Gateway Interface (CGI), which is a standard way of interfacing external applications with Web servers that has been a part of the supported IIS feature set since the first release.
Performance tuning recommmendations for IIS web The main purpose of both the idle worker process page-out and idle worker process termination features is to conserve memory utilization on the server, since a site can consume a lot of memory even if it’s just sitting there, listening.
Frequently creating and deleting CGI processes. FastCGI 09/26/; 13 minutes to read Contributors. In this article. Overview.
The element contains a collection of elements, each of which creates a FastCGI application pool definition. Internet Information Services (IIS) 7 includes the FastCGI component. Jan 25, · The IIS FastCGI Extension enables popular application frameworks like PHP be hosted on the IIS web server in a high-performance and reliable way/5.
The performance paper will help you understand how application design affects performance with FastCGI. The FastCGI Specification, doc/vetconnexx.com, defines the interface between a FastCGI application and a Web server that supports FastCGI.