Apache Benchmark

Apache Benchmark (ab)

Apache Benchmark (ab) is an open-source tool for benchmarking the performance of HTTP web servers. It allows users to measure response times, requests per second, and other metrics to test a server's load capacity and performance under different conditions.

What is Apache Benchmark?

Apache Benchmark (ab) is an open-source command-line tool for benchmarking the performance of HTTP web servers. It is distributed as part of the Apache HTTP server project and is commonly installed alongside the Apache web server. ab allows users to simulate requests to test the responsiveness, throughput capacity, and scalability of a web server under a variable load.

Some key features and uses of ab include:

• Measuring a web server's requests per second capacity and response times under different concurrency levels
• Testing how a web server performs as the number of simultaneous connections increases
• Comparing the load handling capabilities of different web servers or web server configurations
• Generating basic HTTP workloads to analyze application code performance and bottlenecks
• Identifying the maximum number of concurrent users a web server can handle before performance degrades

ab runs from the command line and generates a specified number of requests from one single machine to the target web server. Reports include metrics like requests per second, time per request, percentage of failed requests, and more. It also supports HTTP protocols like HTTPS and can reuse TCP connections to better simulate browser behavior. While simple, ab provides an easy way to generate and test varying user loads on a web server.

Apache Benchmark Features

Official Links