The Netflix TechBlog

MAY 4, 2023

Replay Traffic Testing Replay traffic refers to production traffic that is cloned and forked over to a different path in the service call graph, allowing us to exercise new/updated systems in a manner that simulates actual production conditions. This approach has a handful of benefits.

Traffic 339

Traffic Latency Tuning Systems 339

The Netflix TechBlog

SEPTEMBER 8, 2020

For each route we migrated, we wanted to make sure we were not introducing any regressions: either in the form of missing (or worse, wrong) data, or by increasing the latency of each endpoint. Being able to canary a new route let us verify latency and error rates were within acceptable limits.

Latency 233

Latency Cache Java Traffic 233

Dynatrace

JUNE 27, 2022

Data collected on page load events, for example, can include navigation start (when performance begins to be measured), request start (right before the user makes a request from the server), and speed index metrics (measure page load speed). connectivity, access, user count, latency) of geographic regions. The bottom line?

Best Practices 169

Best Practices Monitoring Wireless Traffic 169

Scalegrid

APRIL 16, 2020

Deploying your application and database on the same VPC also provides the lowest possible latency path. AWS Security Groups and Azure Network Security Groups allow you to lock down access to your servers through advanced virtual firewalls. This becomes really important for cache solutions like Redis™. Security Groups. No problem.

Cloud 242

Cloud Azure AWS Database 242

The Morning Paper

JULY 4, 2019

They use a combination of timeouts, retries, and fallbacks to try to mitigate the effects of these failures, but these don’t get exercised as often as the happy path, so how can we be confident they’ll work as intended when called upon? RPCs at Netflix are wrapped as Hystrix commands.

Latency 77

Latency Engineering Metrics Traffic 77

Brendan Gregg

JUNE 30, 2018

sounds like a homework exercise of purely academic value. If you develop a habit of reading only the operation rate and latency numbers from a lengthy benchmark report (or you have a shell script to do this that feeds a GUI), it's easy to miss other details in the report such as the error rate. ### 4. What's the limiter?" No packets.

Benchmarking 54

Benchmarking Latency Cache Network 54

Brendan Gregg

JUNE 29, 2018

sounds like a homework exercise of purely academic value. If you develop a habit of reading only the operation rate and latency numbers from a lengthy benchmark report (or you have a shell script to do this that feeds a GUI), it's easy to miss other details in the report such as the error rate. ### 4. What's the limiter?" No packets.

Benchmarking 40

Benchmarking Latency Cache Network 40