Why Developers Insist on Being Measured on Software Performance

How do you set your performance metrics for your personal performance reviews? What do other developers do? Turns out, most prefer two performance-related metrics.

Every organization, every team, is a little bit different. Your personal job performance metrics might be different from your colleague’s, or your friend’s at another company.

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When should I start load testing?

Realism is a good goal, but don't lose sight of the trade-offs. If you wait to test until you have a perfect simulation, you'll miss opportunities to fix problems. Look for ways to start with simple testing instead, and then build up to more complex simulations.

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Understanding Test URL Status Codes to Track Performance

Congratulations: you’ve run a few LoadImpact load tests and you’re anxiously poring over the results. You’ve probably already gained a few insights about what you might improve. You’ve seen some areas you want to explore further. And you’ve found some mysterious status codes in the URLs tab on the test results page.

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How to get started load testing your API from a template

It’s important to perform API Performance Testing. In this article, we’ll review our simple strategy for getting started and give you a template or sample script for your JSON API.

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Ready for FIFA-world-cup-2018? What the performance graphs mean.

Prepare for your upcoming traffic peaks - like FIFA World Cup 2018

Is your site ready for peak traffic? How can you prepare for your upcoming traffic peaks? It’s more than just Black Friday and Cyber Monday for many businesses. In fact, one of the busiest traffic periods is coming up: FIFA World Cup 2018. (More about it later.)

No matter what’s coming your way, we want you to be planning for your peak traffic times. And we also recommend load testing.

If you’re not doing it already, load test now before these traffic peaks hit.

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Webinar: Analyzing your load testing results with Load Impact Insights

Join our webinar where we'll describe the difference between Load Impact Insights, our new analysis solution, versus the way results are handled in the current load testing platform. We will continue to reveal features that will be part of our next major platform upgrade, built on top of our open source load testing tool - k6

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Product Update


A new year is upon us - and a lot is going on at Load Impact. We’ve just done this year’s first release for k6, with a lot of new fabulous features. For this version we’ve had contributions from 10 people outside of Load Impact, yay!

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How to interpret your load test results

When you look at results, you will first want to start with the main graph, you can derive a lot of information from it!  By default, we will plot two metrics - Virtual Users (VUs) and Virtual User Load Time. By definition VU Load Time is a measure of how long it takes a virtual user to make all the HTTP requests during an iteration of the user scenario they are assigned to. If you are running a simple URL test, you’ll probably get results in milliseconds.  If you recorded a long journey with our chrome extension, you may be looking at minutes.  

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2018 Predictions: More Need for Load Testing

What’s going on in the world of testing?

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Make Your Load Tests More Realistic

Testing, by its nature, isn’t the real world. Still, you can make your load tests more realistic. Besides following our general advice about better load tests - like using the LoadImpact plugin for Google Chrome to record user scripts that emulate frequently-used features - we’d like to suggest another tips that might make your tests even better.

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