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Simulate Network Latency and Packet Drop In Linux

DZone

There may be a scenario when you want to test an application when the network is slow(we also call it high network latency). Or you are reproducing a customer scenario(having high network latency) where some anomalous behavior is observed. In the Chrome browser, we can easily Simulate a slower network connection.

Latency 230
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Bandwidth or Latency: When to Optimise for Which

CSS Wizardry

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. Latency is defined as…. Where bandwidth deals with capacity, latency is more about speed of transfer 2. and reduction in latency. and reduction in latency. Bandwidth is defined as….

Latency 133
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What are quality gates? How to use quality gates to deliver better software at speed and scale

Dynatrace

Quality gates after load/performance testing Teams can use quality gates to evaluate performance metrics. 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.

Speed 206
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How To Test Your Application in Different Network Conditions by Simulating Artificial Delays in Network Requests

DZone

As a frontend developer or QA, we want to test our website performance in different network conditions and with different API latencies too. Testing certain components of web applications requires simulating delay in one or more web app components. Here are some scenarios where you would like to delay the network requests.

Network 246
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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

In one test, I concatenated it all into one big file, and the other had the library split into 12 files. Read the complete test methodology. Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. This will be referred to as css_time.

Cache 291
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Migrating Critical Traffic At Scale with No Downtime?—?Part 1

The Netflix TechBlog

This blog post will provide a detailed analysis of replay traffic testing, a versatile technique we have applied in the preliminary validation phase for multiple migration initiatives. In this testing strategy, we execute a copy (replay) of production traffic against a system’s existing and new versions to perform relevant validations.

Traffic 339
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Interpreting A/B test results: false negatives and power

The Netflix TechBlog

Martin Tingley with Wenjing Zheng , Simon Ejdemyr , Stephanie Lane , and Colin McFarland This is the fourth post in a multi-part series on how Netflix uses A/B tests to inform decisions and continuously innovate on our products. Have a look at Part 1 (Decision Making at Netflix), Part 2 (What is an A/B Test?), Need to catch up?

Testing 202