Apache Benchmark ( There are multiple ways to perform load testing of web servers and websites. The most commonly used load testing tools are JMeter and ab benchmarking. We are going to explain how to perform ab benchmarking load testing on a website.<\/p>\n Let’s start with ab utility installation. Since this post deals with an Ubuntu host, use apt-get to install the ab utility.<\/p>\n The above command will install the ab utility on the host.<\/p>\n Now, execute the ab benchmark command to get the stats.<\/p>\n where,<\/p>\n n – Number of requests to perform for the benchmarking session. The default is to perform a single request, which usually leads to non-representative benchmarking results.<\/p>\n c- Number of multiple requests to perform at a time. To load a single webpage, normally the browser sends multiple requests to serve a single page. In our example, we assumed that 10 requests are being sent to load the page.<\/p>\n The sample output<\/p>\n Server Software:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Apache Document Path:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/ Concurrency Level:\u00a0\u00a0\u00a0\u00a0\u00a0 10<\/strong> Connection Times (ms) Percentage of the requests served within a certain time (ms) From the above example, we can see that the concurrency level is 10, which means that at a time, we are sending 10 concurrent connections.<\/p>\n The time taken for tests gives the output on how long the benchmark utility takes to complete the test.<\/p>\n\n\nab<\/code>) is a simple command-line utility used to perform basic load and performance testing on web servers and websites. It sends multiple HTTP requests to a specified domain or IP address and measures the server’s response. It provides useful performance metrics such as response time, requests per second, failed requests, and transfer rate. Apache Benchmark is easy to install and use on Linux systems. This article explains how to install and perform basic load testing using the ab<\/code> utility.<\/p>\n\n\n\nPrerequisites<\/h2>\n\n\n\n
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ab<\/code>) utility installed <\/li>\n\n\n\nIMPLEMENTATION<\/h2>\n\n\n
Assumption:<\/h4>\n
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Performance Testing:<\/em><\/h4>\n
<\/code>apt-get -y install apache2-utils<\/code><\/p>\nab -n 100 -c 10 http:\/\/domain.tld<\/code><\/p>\n\n
Server Hostname:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 domain.tld
Server Port:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 80<\/p>\n
Document Length:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 51753 bytes<\/p>\n
Time taken for tests:\u00a0\u00a0 26.274 seconds<\/strong><\/em>
Complete requests:\u00a0\u00a0\u00a0\u00a0\u00a0 100<\/strong>
Failed requests:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0
Total transferred:\u00a0\u00a0\u00a0\u00a0\u00a0 5197900 bytes
HTML transferred:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5175300 bytes
Requests per second:\u00a0\u00a0\u00a0 3.81 [#\/sec] (mean)
Time per request:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2627.362 [ms] (mean)
Time per request:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 262.736 [ms] (mean, across all concurrent requests)
Transfer rate:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 193.20 [Kbytes\/sec] received<\/p>\n
min\u00a0 mean[+\/-sd] median\u00a0\u00a0 max
Connect:\u00a0\u00a0\u00a0\u00a0\u00a0 271\u00a0 305\u00a0 35.7\u00a0\u00a0\u00a0 293\u00a0\u00a0\u00a0\u00a0 482
Processing:\u00a0 1760 2177 430.1\u00a0\u00a0 2063\u00a0\u00a0\u00a0 5716
Waiting:\u00a0\u00a0\u00a0\u00a0\u00a0 561\u00a0 828\u00a0 78.1\u00a0\u00a0\u00a0 821\u00a0\u00a0\u00a0 1242
Total:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2061 2482 429.0\u00a0\u00a0 2370\u00a0\u00a0\u00a0 6016<\/p>\n
50%\u00a0\u00a0 2370
66%\u00a0\u00a0 2458
75%\u00a0\u00a0 2542
80%\u00a0\u00a0 2584
90%\u00a0\u00a0 2780
95%\u00a0\u00a0 3021
98%\u00a0\u00a0 3605
99%\u00a0\u00a0 6016
100%\u00a0\u00a0 6016<\/p>\n<\/blockquote>\nConclusion<\/h2>\n\n\n\n