The Netflix TechBlog

MAY 4, 2023

This blog series will examine the tools, techniques, and strategies we have utilized to achieve this goal. In this testing strategy, we execute a copy (replay) of production traffic against a system’s existing and new versions to perform relevant validations. This approach has a handful of benefits.

Traffic 339

Traffic Latency Tuning Systems 339

The Netflix TechBlog

OCTOBER 26, 2021

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. As a result, if the test treatment results in a small reduction in the latency metric, it’s hard to successfully identify?

Testing 202

Testing Latency Metrics Innovation 202

The Netflix TechBlog

SEPTEMBER 8, 2020

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. Functional Testing Functional testing was the most straightforward of them all: a set of tests alongside each path exercised it against the old and new endpoints.

Latency 233

Latency Cache Java Traffic 233

Dynatrace

JUNE 27, 2022

connectivity, access, user count, latency) of geographic regions. For example, real-user monitoring metrics might reveal a user performance issue that you can then apply to synthetic testing to replicate the issue by exercising the same transaction across several different variables. Performance testing based on variable metrics (i.e.,

Best Practices 182

Best Practices Monitoring Wireless Traffic 182

Scalegrid

APRIL 16, 2020

In this post, we compare ScaleGrid’s Bring Your Own Cloud (BYOC) plan vs. the standard Dedicated Hosting model to help you determine the best strategy for your MySQL, PostgreSQL, Redis™ and MongoDB® database deployment. Deploying your application and database on the same VPC also provides the lowest possible latency path. No problem.

Cloud 242

Cloud Azure AWS Database 242

The Morning Paper

NOVEMBER 14, 2019

Taiji’s routing table is a materialized representation of how user traffic at various edge nodes ought to be distributed over available data centers to balance data center utilization and minimize latency. For example, balance utilisation across all data centers, or optimise for network latency.

Traffic 42

Traffic Internet Internet Latency 42

The Morning Paper

JANUARY 23, 2020

1:18pm a key observation was made that an API call to populate the homepage sidebar saw a huge jump in latency. The process tracing exercise included: Examning IRC transcripts from multiple channels. Members of the team begin diagnosing the issue using the #sysops and #warroom internal IRC channels.

Internet 53

Internet Internet Cache Engineering 53