Remove Design Remove Exercise Remove Metrics Remove Strategy
article thumbnail

Interpreting A/B test results: false negatives and power

The Netflix TechBlog

We then used simple thought exercises based on flipping coins to build intuition around false positives and related concepts such as statistical significance, p-values, and confidence intervals. the difference in metric values between Groups A and B?—?the In fact, power is simply one minus the false negative rate.

Testing 202
article thumbnail

Efficient SLO event integration powers successful AIOps

Dynatrace

However, it’s essential to exercise caution: Limit the quantity of SLOs while ensuring they are well-defined and aligned with business and functional objectives. Data Explorer “test your Metric Expression” for info result coming from the above metric. In other words, where the application code resides.

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

Seamlessly Swapping the API backend of the Netflix Android app

The Netflix TechBlog

Over the course of this post, we will talk about our approach to this migration, the strategies that we employed, and the tools we built to support this. To prepare ourselves for a big change in the tech stack of our endpoint, we decided to track metrics around the time taken to respond to queries.

Latency 233
article thumbnail

Panel Recap: How is your performance and reliability strategy aligned with your customer experience?

Dynatrace

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Then, using a design thinking process , ideate on the future and establish the business vision.

Strategy 178
article thumbnail

Seven benefits of AIOps to transform your business operations

Dynatrace

Like the development and design phases, these applications generate massive data volumes that offer relevant and actionable insights. But AIOps also improves metrics that matter to the bottom line. Create a cloud observability strategy with automatic and intelligent AIOps. For example: Greater IT staff efficiency.

article thumbnail

Site-Speed Topography

CSS Wizardry

Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics. Higher variance means a less stable metric across pages. I can see from the screenshot above that TTFB is my most stable metrics—no one page appears to have particularly expensive database queries or API calls on the back-end.

Speed 292
article thumbnail

Market Power Increases Exponentially with IT Velocity

The Agile Manager

A basic concept of wind energy systems, it is increasingly relevant in commercial building architecture: specifically, if wind velocity can be increased through building design, the potential power that a building can derive from wind energy is considerably greater. In the aggregate, power is abstract in this definition.