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What are quality gates? How to use quality gates to deliver better software at speed and scale

Dynatrace

Before a new version of the application is deployed, the software is subject to a series of load tests that evaluate capacity and performance under a series of simulated traffic and application demands. These metrics are latency, traffic, errors, and saturation, all of which must be key considerations when curating user experience.

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The psychology of site speed and human happiness

Speed Curve

In the fourteen years that I've been working in the web performance industry, I've done a LOT of research, writing, and speaking about the psychology of page speed – in other words, why we crave fast, seamless online experiences. In fairness, that was in the early 2000s, and site speed was barely on anyone's radar.

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Answering Common Questions About Interpreting Page Speed Reports

Smashing Magazine

Answering Common Questions About Interpreting Page Speed Reports Answering Common Questions About Interpreting Page Speed Reports Geoff Graham 2023-10-31T16:00:00+00:00 2023-10-31T17:06:18+00:00 This article is sponsored by DebugBear Running a performance check on your site isn’t too terribly difficult. Source: Source: DebugBear.

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Running A Page Speed Test: Monitoring vs. Measuring

Smashing Magazine

Running A Page Speed Test: Monitoring vs. Measuring Running A Page Speed Test: Monitoring vs. Measuring Geoff Graham 2023-08-10T08:00:00+00:00 2023-08-10T12:35:05+00:00 This article is sponsored by DebugBear There is no shortage of ways to measure the speed of a webpage. Lighthouse results. One type is called lab data.

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The Power of Caching: Boosting API Performance and Scalability

DZone

Caching is the process of storing frequently accessed data or resources in a temporary storage location, such as memory or disk, to improve retrieval speed and reduce the need for repetitive processing.

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The Speed of Time

Brendan Gregg

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? The CentOS flame graph: The Ubuntu flame graph: Darn, they didn't work.

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4 Most Common Page Speed Testing Mistakes

MachMetrics

Using a page speed optimization audit tool like GTmetrix or WebPageTest is a great first step towards assessing how your website loads for visitors. However, you may be making one of the common page speed testing mistakes that often cost website owners engagement, and ultimately, revenue. Mistake #1: Only Testing Desktop.

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