Performance Testing • Test Guild Blog

Browser-Based Load Testing vs. JMeter: When Real Browsers Are Worth the Cost

Thu, 17 Sep 2026 12:39:28 GMT

Quick Answer Browser-based load testing (also called real-browser load testing) drives real browser sessions through your critical user journeys under […]

What Is HTTP in Performance Testing?

Wed, 09 Sep 2026 21:56:43 GMT

HTTP is the protocol web browsers, mobile apps, and test tools use to request information from a server and receive […]

What is Throughput in Performance Testing?

Sun, 16 Aug 2026 03:26:49 GMT

What is Throughput in Performance Testing? Throughput is the amount of work an application completes over a given period. In […]

What Are Concurrent Users in Performance Testing?

Thu, 09 Jul 2026 21:46:29 GMT

Concurrent users are the people or virtual users who are active in an application during the same time window. They […]

The JMeter Alternative for Teams Who’ve Outgrown Open Source But Can’t Stomach LoadRunner Prices

Tue, 30 Jun 2026 10:42:15 GMT

Disclosure: OctoPerf is a TestGuild sponsor. All opinions are my own. Here’s a pattern I’ve seen over and over again […]

Best Load Testing Tools for 2026

Sat, 07 Mar 2026 09:00:30 GMT

Look, I’ve been doing automation testing including performance testing for over 25 years. And in that time, the #1 question […]

Gatling Studio Review 2026: What Gatling’s Creator Showed Me

Fri, 06 Mar 2026 21:35:32 GMT

Look, performance testing has the biggest gap between “we should really do that” and “we actually do that” of any […]

6 Must Run Performance Tests for Black Friday

Thu, 21 Nov 2024 12:56:35 GMT

Regarding e-commerce, Black Friday is the ultimate test of endurance. It’s one of those days of the year, along with […]

Unlock the Power of Continuous Performance Engineering

Mon, 25 Mar 2024 17:41:06 GMT

DevOps Toolchain Podcast with Joe Colantonio With the current demand for software teams to high quality product in a timely […]

What is Response Time Testing (Performance)

Fri, 01 Mar 2024 18:20:02 GMT

What is Response Time Testing (Performance) Unhappy user experience and lost revenue are all side-effects if you don’t get this […]

Performance Testing Guide: Overview, Common Problems, and Tools

Tue, 07 Jun 2022 09:56:55 GMT

Performance matters, especially if you want to produce quality software. For this reason, many testers and software companies invest in […]

Testing Nirvana Basics – Four Steps to Performance Nirvana

Thu, 26 Aug 2021 20:22:12 GMT

Breathe In, Breathe Out – 4 Step Process We all know that performance testing can be frustrating. So many things […]

The Complete Front-End Performance Testing Guide

Tue, 03 Nov 2020 16:00:20 GMT

Discover some ways to address the front-end performance challenges you and your team are probably facing.

Resource Monitoring Basics: CPU and Memory Utilization in Performance Testing

Mon, 05 Oct 2020 16:29:37 GMT

Resource Monitoring Basics: CPU and Memory Utilization in Performance Testing Monitoring resource utilization during performance testing is crucial. This helps […]

Six Top Trends for Performance in 2020 and Beyond

Thu, 21 May 2020 09:58:03 GMT

Many of the trends I’m listing here took place earlier with other software development activities like functional automation testing, but […]

Performance Testing in Troubled Times (Don’t be like Robinhood)

Wed, 29 Apr 2020 11:20:58 GMT

As we enter the fifth month of the year I’m sure no one predicted the trouble times we would find […]

9 Load Testing Best Practices (Don’t Make These Mistakes)

Tue, 17 Mar 2020 13:26:02 GMT

9 Load Testing Best Practices (Don’t Make These Mistakes) One of the most misunderstood parts of performance testing is load […]

How to Reuse Functional Test for Performance Testing

Tue, 25 Feb 2020 20:34:29 GMT

For the past couple of years, I’ve heard lots of talk about using UI browser-based automation tools for performance testing […]

A Podcast Dedicated to Performance Testing and SRE

Thu, 05 Sep 2019 11:07:03 GMT

I just wanted to let you know all about the new TestGuild Performance and Site Reliability podcasts. Here is a […]

Performance Testing with Sauce Labs

Thu, 01 Aug 2019 11:41:39 GMT