
Description: 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.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Locust is an open source load and performance testing tool written in Python. It allows developers to test the performance of their web applications by simulating large numbers of concurrent users making requests.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API