Load Testing with Mark Gilbert

Load testing measures performance of a system undergoing a large volume of requests. Before an application is pushed to production, engineers will often load test their software to ensure it is resilient in the face of high traffic.

As web applications have changed, the requirements around load testing have changed as well. External APIs, internal undocumented APIs, and proprietary databases are black boxes that you might not be able to test reliably with unit tests or integration tests. Having an end-to-end load testing system can provide a measure of insurance against unknown unknowns before users start engaging with a production version.

Mark Gilbert works on performance engineering at Apica, and he joins the show to discuss how load testing software is built and when engineers should use it. Full disclosure: Apica is a sponsor of Software Engineering Daily.


Indeed Prime simplifies your job search and helps you land that ideal software engineering position. The average software developer gets 5 employer contacts and an average salary offer of $125,000. Indeed Prime is 100% free for candidates – no strings attached. Check out indeed.com/sedaily 

Datadog brings you visibility into every part of your infrastructure, plus APM for monitoring your application’s performance. Dashboarding, collaboration tools, and alerts let you develop your own workflow for observability and incident response. Datadog integrates seamlessly with all of your apps and systems, from Slack to Amazon Web Services, so you can get visibility in minutes. Go to softwareengineeringdaily.com/datadog to get started with Datadog and get a free t-shirt.

GoCD is an on-premise, open source, continuous delivery tool. Get better visibility into and control of your teams’ deployments with GoCD. Say goodbye to deployment panic and hello to consistent, predictable deliveries. Visit gocd.io for a free download. 

Software Weekly

Software Weekly

Subscribe to Software Weekly, a curated weekly newsletter featuring the best and newest from the software engineering community.