How to implement web stress testing through Apache Bench

1. Introduction to Apache Bench

ApacheBench is a web stress testing tool that comes with the Apache server, referred to as ab. ab is also a command line tool that has very low requirements for the local machine that initiates the load. According to the ab command, many concurrent access threads can be created to simulate multiple visitors accessing a certain URL address at the same time. Therefore, it can be used to test the load pressure of the target server. In general, the ab tool is small and simple, easy to learn, and can provide the basic performance indicators you need, but it does not have graphical results and cannot be monitored.

2. Apache Bench Installation

First, you need to install the Apache server. Download address: https://www.apachelounge.com/download/. For a 64-bit operating system, select one of the compressed packages above.

Install

Ubuntu

1: Use apt to install online: sudo apt install apache2-utils

2: Check whether the installation is successful: ab -V

Common parameter description

Test report interpretation

example

(1) Simulate 100 client requests:

ab -n 100 http://www.example.com/

(2) Simulate 100 client requests 10,000 times:

ab -n 10000 -c 100 http://www.example.com/

(3) Call the POST method interface 10 times, and the data format transmitted is JSON:

ab -n 10 -p json-file http://www.example.com/

(4) Call the OPTIONS method interface 10 times:

ab -n 10 -m OPTIONS http://www.example.com/

(5) Output the response information for each request:

ab -n 10 -v 2 http://www.example.com/

Precautions

• Using -H Content-Type does not replace -T Content-Type to specify the Content-Type header
• If the message ab: invalid URL appears, it may be because the rightmost part of the URL is missing /. For example, http://www.example.com needs to be changed to http://www.example.com/.
• It should be noted that if the HTTP interface of the stress test determines whether it is successful by returning the result (as long as it can respond, it will return a 200 status code), you need to find a way to identify failed requests yourself.
  

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