- ApacheBench (ab) is a benchmarking tool that measures the performance of a web server by inundating it with HTTP requests and recording metrics for latency and success. ApacheBench can help you determine how much traffic your HTTP server can sustain before performance degrades, and set baselines for typical response times.
- ####SUMMARY#### ab is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server. It is designed to give you an impression of how your current Apache installation performs. This especially shows you how many requests per second your Apache installation is capable of serv‐ ing.
Ab Apache Benchmark Download
ab (Apache Benchmark) is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP) server. It provides a quick an easy way to evaluate your http serving capabilities. ab overloads the server with http requests and measures the time it takes to serve all those requests.
ApacheBench standalone - an Apache HTTP Server benchmark tool, known as 'ab' - ShiFengAway/ab.
The benchmark is intended for all available versions of Apache through 2.x.
A very common question is how to install ab and where to get it. The real thing is that ab comes preconfigured with your apache installation. Apache by himself is just an extension command for the Apache Web Server. So if you have already installed Apache, then you should also have the ab benchmarking tool.
What we need in order to get ab to work is type the command and append the URL address we want to test. The command is issued as follows:
# ab -n100 -c10 http://localhost:8080/index.jsp
Lets see an example screen:
The -n parameter tells ab the number of connections to send to the server. In this case we are sending just 10, while the -c means the number concurrent requests to be made. The -k option activates the KeepAlive feature and the -t is the timelimit (in seconds)for apache to spend for benchmarking.
The number of connections is the most important parameter, the first times set it to a prudent level of connections and try with different values, increase this value until you get satisfied with the benchmarking; An ab test makes consumption of the server RAM, resources, bandwidth and processor so if you put a brutally high number of connections on an underpowered server, it may get out of resources.
ab is a very simple and useful command line application. It can be understood and performed with ease on almost any kind of Apache server.
As a matter of fact, the ab testing mechanism actually is a good example of a Denial of Service (DoS) attack. Of course ab is not as dangerous and stealthy, and although its very unlikely for it to effectively damage a server, the basis remains the same.
For further information, you can always check the official webpage.
- Apache Bench Tutorial
Apache Ab Benchmark Example
- Apache Bench Useful Resources
- Selected Reading
Apache Bench (ab) is a load testing and benchmarking tool for Hypertext Transfer Protocol (HTTP) server. It can be run from command line and it is very simple to use. A quick load testing output can be obtained in just one minute. As it does not need too much familiarity with load and performance testing concepts, therefore it is suitable for beginners and intermediate users. To use this tool, no complex setup is required. Moreover, it gets installed automatically with Apache web server, or it can be installed separately as Apache utility. It does not have all the features of more popular tools such as jMeter or Grinder, but it is good for a start.
This tutorial is designed for Application Developers and System Administrators, who are willing to learn Apache Bench in simple and easy steps. This tutorial will give you practical knowledge on Apache Bench, and after completing this tutorial, you will be at an intermediate level of expertise from where you can take yourself to higher level of expertise.
Ubuntu Ab Apache Benchmark 2000 Concurrent
Before proceeding with this tutorial, you should have a basic understanding of command line interface (CLI), HTTP, text editor and web servers, etc., because you will need these tools to successfully run Apache Bench for load testing. In addition, it will be good if you have knowledge of web development and application testing processes.