The Netflix TechBlog

NOVEMBER 3, 2022

We introduce a caching mechanism in the API gateway layer, allowing us to offload processing from singleton leader elected controllers without giving up strict data consistency and guarantees clients observe. The cache is kept in sync with the current leader process. How do I know that my cache is up to date? of the data.

Cache 246

Cache Latency Traffic Systems 246

CSS Wizardry

AUGUST 19, 2024

For the longest time now, I have been obsessed with caching. I think every developer of any discipline would agree that caching is important, but I do tend to find that, particularly with web developers, gaps in knowledge leave a lot of opportunities for optimisation on the table. Want to know everything (and more) about HTTP cache?

Cache 237

Cache Network Strategy Analytics 237

DZone

AUGUST 16, 2023

Caching is the process of storing frequently accessed data or resources in a temporary storage location, such as memory or disk, to improve retrieval speed and reduce the need for repetitive processing. Bandwidth optimization: Caching reduces the amount of data transferred over the network, minimizing bandwidth usage and improving efficiency.

Cache 246

Cache Scalability Performance Latency 246

Percona

MAY 28, 2025

changed its core product license, few anticipated how fast the aftershocks would reshape the caching world. Open wins again: What Valkeys meteoric rise tells us about the future A product managers perspective on navigating an ecosystem in flux. When Redis Inc.

Open Source 106

Open Source Cache 106

CSS Wizardry

OCTOBER 2, 2023

If you work in customer support for any kind of tech firm, you’re probably all too used to talking people through the intricate, tedious steps of clearing their cache and clearing their cookies. set ( ' Clear-Site-Data ' , ' cache ' ); } else { res. Well, there’s an easier way! Something maybe a little like this: const referer = req.

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Cache Operating System Development Availability 226

The Netflix TechBlog

NOVEMBER 12, 2024

Best Effort Regional Counter This type of counter is powered by EVCache , Netflix’s distributed caching solution built on the widely popular Memcached. Rollup Cache To optimize read performance, these values are cached in EVCache for each counter.

Latency 261

Latency Cache Infrastructure Strategy 261

High Scalability

FEBRUARY 25, 2019

The previous article described the caching algorithms used by Caffeine , in particular the eviction and concurrency models. This allows for quickly discarding new arrivals that are unlikely to be used again, guarding the main region from cache pollution.

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Cache Design Analytics Google 200

CSS Wizardry

MARCH 7, 2025

Learn how the Cache-Control request header works, how browsers handle refresh and hard refresh caching, and when developers should use it for realtime data and offline-first applications.

Cache 185

Cache Development 185

DZone

NOVEMBER 20, 2019

You may also like: Java-Distributed Caching in Redis. Local caching is one of the most useful tactics for improving the performance of databases such as Redis. Redis developers who want to do local caching in Java will find that Redis doesn’t support this functionality out of the box.

Cache 174

Cache Java Database Performance 174

DZone

AUGUST 12, 2019

Caching is extremely useful in order to speed up PHP webpages. In this article, I’ll show you how to make a simple PHP caching system for your web pages. When working on PHP websites made from scratch and without a framework, speed can often be an issue.

Cache 171

Cache Efficiency Speed Website 171

Scalegrid

AUGUST 16, 2021

Guest post by Ben Hagan from PolyScale.ai Data-driven applications span a wide breadth of complexity, from simple microservices to real-time event-driven systems under significant load. However, as any development and/or DevOps team tasked with performance improvements will attest, making data-driven apps fast globally is “non-trivial”.

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Cache DevOps Architecture Systems 279

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

KeyCDN

NOVEMBER 15, 2023

One of the best ways to achieve this is by using HTTP caching headers. These headers tell web browsers and other HTTP clients how to cache and serve content from your website. This article highlights important information on HTTP caching headers and associated CDN behavior.

Cache 52

Cache Website Servers Website Performance 52

DZone

MAY 1, 2023

Caches are very useful software components that all engineers must know. In this article, we are going to describe what is a cache and explain specific use cases focusing on the frontend and client side. In this article, we are going to describe what is a cache and explain specific use cases focusing on the frontend and client side.

Cache 147

Cache Strategy Latency Operating System 147

Percona

APRIL 15, 2025

Introduced an in-memory dictionary term cache that allows significant speed-up of dictionary operations. In particular, we made the following changes: Changed the user on behalf of whom we execute internal queries for dictionary operations. Introduced masking_dictionaries_flush() User Defined Function. Introduced […]

Cache 77

Cache Servers Speed Design 77

DZone

SEPTEMBER 3, 2024

It improves I/O throughput substantially through the distributed cache and uses cost-effective object storage for data storage. 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

Addy Osmani

JANUARY 6, 2025

A deep dive into how browser cache partitioning has fundamentally changed web performance optimization, examining the trade-offs between privacy and performance in modern web applications.

Cache 114

Cache Performance 114

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.

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Cache Software Architecture Architecture Software 130

DZone

FEBRUARY 15, 2022

To manage the server state in the frontend and sync with the backend, we need to update, cache, or re-fetch the data efficiently. Sometimes we call the backend more than necessary, and this could cause performance problems in our applications.

Cache 130

Cache Servers Efficiency Performance 130

DZone

MAY 30, 2025

This problem arises because SQL Servers traditional query plan caching mechanism generates only a single execution plan for a parameterized query. For years, database administrators and developers working with SQL Server faced a persistent performance issue known as parameter sniffing.

Servers 130

Servers Cache Efficiency Database 130

Percona

APRIL 14, 2023

A shared characteristic in most (if not all) databases, be them traditional relational databases like Oracle, MySQL, and PostgreSQL or some kind of NoSQL-style database like MongoDB, is the use of a caching mechanism to keep (a copy of) part of the data in memory. How do you know if your MySQL database caching is operating efficiently?

Cache 108

Cache Efficiency Database Monitoring 108

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

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 117

Cache Scalability Performance Systems 117

DZone

MARCH 21, 2024

NCache Java Edition with distributed cache technique is a powerful tool that helps Java applications run faster, handle more users, and be more reliable. It doesn't matter if you've been developing for years or if you're new to caching , this article will help you get a good start with NCache Java Edition.

Java 319

Java Cache Technology Technology 319

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 also find optimization plugins or caching solutions that give you access to a CDN.

Traffic 86

Traffic Website Design Cache 86

The Netflix TechBlog

JANUARY 6, 2025

Personalization systems handle the recommendation and serving of titles on these canvases, leveraging a vast ecosystem of microservices, caches, databases, code, and configurations to build these product canvases.

Scalability 233

Scalability Cache Engineering Systems 233

DZone

JULY 8, 2020

It's cargo-cult fighting time! Today, we are going to look at a ban expression that you probably have used, and maybe even have recommended (gasp!) to your fellow Varnish users: req.url ~ /.

Cache 173

Cache Performance 173

High Scalability

SEPTEMBER 3, 2019

Depending on how it is configured, Redis can act like a database, a cache or a message broker. Redis , short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009.

Open Source 55

Open Source Cache C++ Database 55

DZone

APRIL 18, 2025

What is more, they are the core of what we work with: multiple services working together, or maybe a database, or just a service or two with some cache layer, or even some service that connects via an async message queue. One search in Google can trigger tens (or hundreds) of calls to different microservices owned by Google.

Systems 130

Systems Google Cache Database 130

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 267

Cache Latency Airlines Logistics 267

InfoQ

JANUARY 29, 2024

RevenueCat extensively uses caching to improve the availability and performance of its product API while ensuring consistency. The company shared its techniques to deliver the platform, which can handle over 1.2 billion daily API requests. The team at RevenueCat created an open-source memcache client that provides several advanced features.

Cache 114

Cache Open Source Availability Performance 114

The Netflix TechBlog

DECEMBER 19, 2024

this could take a few minutes) All packages already cached in s3. All environments already cached in s3. (venv-demo) ~/projects/metaboost-demo [branch=demoX] $ metaboost metaflow run --binding=EXP_01 Metaboost Execution: - python3.10 /root/repos/cdm-metaboost-irl/metaflows/training.py --no-pylint --package-suffixes=.py

Best Practices 217

Best Practices Cache Metrics Code 217

CSS Wizardry

MAY 31, 2019

Users might already have the file cached. If website-a.com links to [link] , and a user goes from there to website-b.com who also links to [link] , then the user will already have that file in their cache. Penalty: Caching. This makes it very safe and sensible to enforce a reasonably aggressive cache policy.

Cache 274

Cache Latency Infrastructure Website 274

DZone

APRIL 9, 2020

Insufficient dispatcher caching. Lack of browser caching. High CPU utilization. Expensive requests such as expensive searches or inefficient application code, components, etc. Lack of proper maintenance. Lack of CDN. Too many scripts loaded on-page and loaded at top of the page. Insufficient server sizing or incorrect architecture.

Website Performance 264

Website Performance Website Performance Cache 264

DZone

NOVEMBER 24, 2023

We can agree decoupling is a good practice that simplifies the code and the maintainability of the project. A common way of decoupling the code is to divide the responsibilities into different layers. A very common division is:

Code 182

Code Cache 182

Percona

JUNE 12, 2024

In the first part of this blog post, we learned how to enable GCache and Record-Set cache encryption in Percona XtraDB Cluster. Keeping Your Data Safe: An Introduction to Data-at-Rest Encryption in Percona XtraDB Cluster. This part will explore the details of the implementation to understand what happens behind the scenes.

Cache 116

Cache Software Software 116

Scalegrid

MARCH 23, 2020

Once authentication succeeds, it checks if it already has a cached connection for this database+user combination. Once the client disconnects, Pgpool-II has to decide whether to cache the connection: If it has an empty slot, it caches it. If it does, it returns the connection to the client.

Cache 264

Cache Servers Architecture Processing 264