The Netflix TechBlog

JANUARY 6, 2025

In this case, the main stakeholders are: - Title Launch Operators Role: Responsible for setting up the title and its metadata into our systems. In this context, were focused on developing systems that ensure successful title launches, build trust between content creators and our brand, and reduce engineering operational overhead.

Scalability 219

Scalability Cache Engineering Systems 219

DZone

FEBRUARY 27, 2024

Caching is a critical technique for optimizing application performance by temporarily storing frequently accessed data, allowing for faster retrieval during subsequent requests. Multi-layered caching involves using multiple levels of cache to store and retrieve data.

Cache 173

Cache Efficiency Architecture Design 173

DZone

MAY 1, 2023

Caches are very useful software components that all engineers must know. It is a transversal component that applies to all the tech areas and architecture layers such as operating systems, data platforms, backend, frontend, and other components. What Is a Cache?

Cache 147

Cache Strategy Latency Operating System 147

DZone

SEPTEMBER 3, 2024

High-performance computing systems often use all-flash architectures and kernel-mode parallel file systems to satisfy performance demands. However, the increasing sizes of both data volumes and distributed system clusters raise significant cost challenges for all-flash storage and vast operational challenges for kernel clients.

Cache 147

Cache Performance Storage Architecture 147

The Netflix TechBlog

NOVEMBER 9, 2022

We also see much higher L1 cache activity combined with 4x higher count of MACHINE_CLEARS. a usage pattern occurring when 2 cores reading from / writing to unrelated variables that happen to share the same L1 cache line. Cache line is a concept similar to memory page?—? Thread 0’s cache in this example.

Hardware 363

Hardware Cache Performance Latency 363

The Netflix TechBlog

DECEMBER 19, 2024

Many of these projects are under constant development by dedicated teams with their own business goals and development best practices, such as the system that supports our content decision makers , or the system that ranks which language subtitles are most valuable for a specific piece ofcontent. All environments already cached in s3.

Best Practices 204

Best Practices Cache Metrics Code 204

DZone

JUNE 29, 2022

The purpose of this article is to help readers understand what is caching, the problems it addresses, and how caching can be applied across layers of system architecture to solve some of the challenges faced by modern software systems.

Cache 130

Cache Software Architecture Architecture Software 130

DZone

AUGUST 4, 2022

The host offered browser caching advantages, better stability, and storage on fast edge servers across strategic geolocations. The idea has been that a CDN has fast edge servers that cache content and deliver it based on the user’s geolocation. Not only did it have performance benefits, but it was also convenient for developers.

Cache 305

Cache Tuning Storage Website 305

ACM Sigarch

DECEMBER 19, 2022

We look here at a Gedankenexperiment: move 16 bytes per cycle , addressing not just the CPU movement, but also the surrounding system design. They also fail if the source or desired destination is somewhere in the cache hierarchy, not DRAM. Cache pollution is addressed in a section below.). Cache Underpinning. byte loads.

Design 145

Design Systems Cache Network 145

Dynatrace

JANUARY 16, 2023

As Kubernetes adoption increases and it continues to advance technologically, Kubernetes has emerged as the “operating system” of the cloud. Kubernetes is emerging as the “operating system” of the cloud. Kubernetes is emerging as the “operating system” of the cloud. Kubernetes moved to the cloud in 2022.

Open Source 358

Open Source Java Operating System Programming 358

High Scalability

SEPTEMBER 3, 2019

Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s important to note that Redis is a NoSQL database system.

Open Source 55

Open Source Cache C++ Database 55

The Netflix TechBlog

MARCH 28, 2025

By Ko-Jen Hsiao , Yesu Feng and Sudarshan Lamkhede Motivation Netflixs personalized recommender system is a complex system, boasting a variety of specialized machine learned models each catering to distinct needs including Continue Watching and Todays Top Picks for You. Refer to our recent overview for more details).

Tuning 165

Tuning Efficiency Latency Strategy 165

KeyCDN

NOVEMBER 19, 2020

In October 2015 KeyCDN released a free WordPress caching plugin called Cache Enabler. We did this because we wanted to give back to the WordPress community in the offering of a caching solution that was not complicated and most importantly, free. Over the last few months there have been many changes made to Cache Enabler.

Cache 116

Cache Network Open Source Speed 116

InfoQ

OCTOBER 28, 2023

DoorDash rearchitected the heterogeneous caching system they were using across all of their microservices and created a common, multi-layered cache providing a generic mechanism and solving a number of issues coming from the adoption of a fragmented cache. By Sergio De Simone

Cache 113

Cache Scalability Performance Systems 113

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache 258

Cache Latency Airlines Logistics 258

The Netflix TechBlog

JUNE 14, 2023

The GraphQL shim enabled client engineers to move quickly onto GraphQL, figure out client-side concerns like cache normalization, experiment with different GraphQL clients, and investigate client performance without being blocked by server-side migrations. To launch Phase 1 safely, we used AB Testing.

Traffic 357

Traffic Latency Metrics Cache 357

Smashing Magazine

JANUARY 7, 2025

In this article, well discuss six ways to design websites for high-traffic events like product drops and sales: Compress and optimize images , Choose a scalable web host , Use a CDN , Leverage caching , Stress test websites , Refine the backend. You can often do this using built-in apps on your operating system. Lets jump right in!

Traffic 86

Traffic Website Design Cache 86

Dynatrace

JANUARY 31, 2024

GenAI is prone to erratic behavior due to unforeseen data scenarios or underlying system issues. The RAG process begins by summarizing and converting user prompts into queries that are sent to a search platform that uses semantic similarities to find relevant data in vector databases, semantic caches, or other online data sources.

Cache 276

Cache Azure Infrastructure Monitoring 276

The Netflix TechBlog

APRIL 27, 2023

Engineers want their alerting system to be realtime, reliable, and actionable. A few years ago, we were paged by our SRE team due to our Metrics Alerting System falling behind — critical application health alerts reached engineers 45 minutes late! In other words, false positives are bad but false negatives are the absolute worst!

Storage 297

Storage Cache Metrics Database 297

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Browsers now understand the classic shared HTTP cache behaviour as a privacy bug.

Cache 89

Cache Government Traffic Network 89

John McCalpin

FEBRUARY 17, 2025

Understanding sustained memory bandwidth in these systems starts with assuming 100% utilization and then reviewing the factors that get in the way (e.g., This requires a completely different approach to modeling the memory system — one based on Little’s Law from queueing theory.

Latency 71

Latency Hardware Cache Systems 71

CSS Wizardry

OCTOBER 16, 2023

If you wanted to cache a file ‘forever’, you’d probably use a Cache-Control header like this: Cache-Control: max-age=31536000 This instructs any cache that it may store and reuse a response for one year (60 seconds × 60 minutes × 24 hours × 365 days = 31,536,000 seconds ). Does Cache-Control say anything different?

Cache 215

Cache C++ Servers Internet 215

Scalegrid

AUGUST 30, 2019

Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s important to note that Redis is a NoSQL database system. Session Cache: Many websites leverage Redis Strings to create a session cache to speed up their website experience by caching HTML fragments or pages.

Cache 232

Cache Ecommerce Social Media Database 232

The Netflix TechBlog

SEPTEMBER 18, 2024

message Item ( Bytes key, Bytes value, Metadata metadata, Integer chunk ) Database Agnostic Abstraction The KV abstraction is designed to hide the implementation details of the underlying database, offering a consistent interface to application developers regardless of the optimal storage system for that use case.

Latency 260

Latency Storage Cache Servers 260

DZone

OCTOBER 4, 2023

It turns out that the fix we made did improve performance at one point but created a situation in which key information was never cached. While the initial trace provided valuable insights into the authentication service, it didn’t explain why the system was built in this way.

Latency 254

Latency Cache Software Software 254

The Netflix TechBlog

MAY 4, 2023

Behind the scenes, a myriad of systems and services are involved in orchestrating the product experience. These backend systems are consistently being evolved and optimized to meet and exceed customer and product expectations. This technique facilitates validation on multiple fronts.

Traffic 347

Traffic Latency Tuning Systems 347

The Netflix TechBlog

SEPTEMBER 24, 2021

Lastly, the packager kicks in, adding a system layer to the asset, making it ready to be consumed by the clients. There are existing distributed file systems for the cloud as well as off-the-shelf FUSE modules for S3. MezzFS borrows from how operating systems handle page faults.

Cloud 242

Cloud Media Storage Cache 242

The Netflix TechBlog

JULY 12, 2019

Gatekeeper is the system at Netflix responsible for evaluating the “liveness” of videos and assets on the site. Gatekeeper accomplishes its prescribed task by aggregating data from multiple upstream systems, applying some business logic, then producing an output detailing the status of each video in each country.

Cache 184

Cache Architecture Latency Engineering 184

High Scalability

JANUARY 11, 2022

The streaming data store makes the system extensible to support other use-cases (e.g. System Components. The system will comprise of several micro-services each performing a separate task. We will use a cache having an LRU based eviction policy for caching user feeds of active users. Optimization.

Design 334

Design Media Storage Logistics 334

Scalegrid

FEBRUARY 8, 2024

A distributed storage system is foundational in today’s data-driven landscape, ensuring data spread over multiple servers is reliable, accessible, and manageable. This guide delves into how these systems work, the challenges they solve, and their essential role in businesses and technology.

Storage 130

Storage Systems Big Data Azure 130

CSS Wizardry

SEPTEMBER 16, 2024

If you are, you probably get some or all of the next sections for free anyway… Use a Fast DNS Provider One of the first things a new visitor will have to do to access your site is resolve the IP address using the Domain Name System (DNS). Cache Everything If you’re going to do something, try only do it once.

Latency 244

Latency Cache Transportation Mobile 244

Dynatrace

APRIL 7, 2022

Spring Boot 2 uses Micrometer as its default application metrics collector and automatically registers metrics for a wide variety of technologies, like JVM, CPU Usage, Spring MVC, and WebFlux request latencies, cache utilization, data source utilization, Rabbit MQ connection factories, and more. That’s a large amount of data to handle.

Metrics 246

Metrics Java Latency Cache 246

Dynatrace

AUGUST 30, 2019

She was speaking about how her team is providing Visibility as a Service (VaaS) in order to continuously monitor and optimize their systems running across private and public cloud environments. Missing Cache Settings – Make sure you cache resources that don’t change often on the browser or use a CDN.

Cache 214

Cache Database Architecture Government 214

The Netflix TechBlog

OCTOBER 29, 2020

Disk cache Of course, network connectivity may not always be available so downloaded rule sets need to be cached to disk. remotely configurable files that get downloaded to the device. We’re using Ktor ’s Multiplatform HttpClient to embed our networking code within the SDK.

Mobile 279

Mobile Cache Network Technology 279

DZone

OCTOBER 11, 2022

Using MongoDB as a cache store ( Architects Zone – Architectural Design Patterns & Best Practices). Linux System Mining with Python ( Javalobby – The heart of the Java developer community). ( Hacker News). Simpler UI Testing with CasperJS ( Architects Zone – Architectural Design Patterns & Best Practices). Java EE 7 is Final.

Java 244

Java Best Practices Google Analytics 244

The Netflix TechBlog

MARCH 8, 2021

Instead, we created a service to take the most popular configurations and cache them. We needed a system that could manage hundreds to one-day thousands of workstations. We needed a system that could manage hundreds to one-day thousands of workstations. Now, artists can get a new workstation in seconds. How did we get here?

Entertainment 307

Entertainment Storage Open Source Hardware 307

Particular Software

MAY 22, 2023

Is this the best way to build a system, though? For example, you might need the data to be denormalized for performance, or the warehouse data might exist on a physically different system that can’t participate in a database join. From a technical perspective, attributes that change together should also be cached similarly.

Systems 98

Systems Cache Strategy Database 98