The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. The original assumptions and architectural choices were no longer viable. The cache is kept in sync with the current leader process.

Cache 224

Cache Latency Traffic Systems 224

The Netflix TechBlog

OCTOBER 18, 2019

It featured three relevant talks from LinkedIn, Netflix and Facebook, and a platform architecture overview talk from first time participant Dropbox. The key insight was that by assuming a latent Gaussian Process (GP) prior on the key business metric actions like viral engagement, job applications, etc.,

Infrastructure 126

Infrastructure Metrics Architecture Efficiency 126

Brendan Gregg

FEBRUARY 28, 2023

DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 110

Performance Latency Cache Virtualization 110

The Netflix TechBlog

MARCH 5, 2019

the order of the rows on your Netflix home page, issuing content licenses when you click play, finding the Open Connect cache closest to you with the content you requested, and many more). In the last section, we will attempt to feed your curiosity by presenting a set of opportunities that will drive our next wave of impact for Netflix.

Infrastructure 182

Infrastructure Cloud Scalability AWS 182

The Netflix TechBlog

OCTOBER 18, 2019

It featured three relevant talks from LinkedIn, Netflix and Facebook, and a platform architecture overview talk from first time participant Dropbox. The key insight was that by assuming a latent Gaussian Process (GP) prior on the key business metric actions like viral engagement, job applications, etc.,

Infrastructure 100

Infrastructure Metrics Architecture Efficiency 100

Brendan Gregg

JULY 2, 2021

E.g., to see process execution with timestamps using execsnoop(8): # execsnoop-bpfcc -T. Low frequency events such as process execution should be negligible to capture. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization.

Latency 145

Latency Cache Energy Systems 145

Dynatrace

SEPTEMBER 17, 2019

Instead of presenting you with a handful of random screenshots from our demo environment I reached out to Robert, a close friend of mine, who leads a development team with the current task to re-architect and re-platform their multi-tenant SaaS-based eCommerce platform. REDIS for caching. NGINX as an API Gateway. 1 Validate Deployment.

AWS 127

AWS Monitoring Ecommerce Lambda 127

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ) These tools make it easier to determine where we need to put emphasis to improve our sites. UI/UX : There is usually a designer and/or UX person that sets the look & feel and information architecture. Get involved in the interview process. Arrange a presentation and show them.

Performance 237

Performance Speed Google Media 237

ACM Sigarch

MARCH 18, 2019

This Part 1 discusses Bottleneck Analysis and Little’s Law, while Part 2 presents the M/M/1 Queue. To this end, we present three simple models that we find useful like Amdahl’s Law, split here into two blog posts. Assume that your organization processes travel reimbursements and wants to know the average processing time (latency).

Systems 60

Systems Latency Performance Analytics 60

Brendan Gregg

FEBRUARY 28, 2023

DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Virtualization 52

ACM Sigarch

MARCH 25, 2019

Part 1 previously discussed Bottleneck Analysis and Little’s Law, while this post (Part 2) presents the M/M/1 Queue. It also presented Bottleneck Analysis and Little’s Law that can give initial answers to questions like: What is the maximum throughput through several subsystems in series and parallel?

Systems 53

Systems Latency Performance C++ 53

CSS - Tricks

JULY 25, 2019

Cache-Headers missing? Lighthouse records metrics from the browser, applies a scoring model to them, and presents an overall performance score. If you’re interested in a high-level overview of Lighthouse architecture, read this guide from the official repository. After that, it’ll be mitigated by cache. In PageSpeed 5.0,

Google 71

Google Engineering Speed Mobile 71

Scalegrid

DECEMBER 19, 2019

It connects to PostgreSQL as a predefined user (whose password must be present in the userslist.txt file) and executes the auth-query to find the user’s password and matches it to the provided value. Once the authentication succeeds: PgBouncer checks for a cached connection, with the same username+database combination.

Cache 246

Cache Architecture Database Servers 246

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ). UI/UX : There is usually a designer and/or UX person that sets the look & feel and information architecture. It’s better to learn the fundamentals than the library There are still lots of job descriptions and interview processes that focus on libraries and not the underlying technology.

Performance 130

Performance Speed Google Media 130

Scalegrid

FEBRUARY 8, 2024

Distributed Storage Architecture Distributed storage systems are designed with a core framework that includes the main system controller, a data repository for the system, and a database. This process effectively duplicates essential parts of information to safeguard against potential loss.

Storage 130

Storage Systems Big Data Azure 130

Brendan Gregg

JULY 2, 2021

While basic, I've solved many perf issues with this tool alone, including for misconfigured systems where a shell script is launching failing processes in a loop, and when some minor application is crashing and is restarting every few minutes but has not yet been noticed. ## 2. execsnoop New processes (via exec(2)) table 2. acpid [.]

Open Source 40

Open Source Latency Cache Energy 40

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

Cache 52

Cache Storage Servers Database 52

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

Cache 52

Cache Storage Servers Database 52

Scalegrid

DECEMBER 21, 2023

With its widespread use in modern application architectures, understanding the ins and outs of Redis® monitoring is essential for any tech professional. To monitor Redis® instances effectively, collect Redis metrics focusing on cache hit ratio, memory allocated, and latency threshold.

Strategy 130

Strategy Monitoring Latency DevOps 130

Dynatrace

AUGUST 30, 2019

Missing Cache Settings – Make sure you cache resources that don’t change often on the browser or use a CDN. DMV, police records that are needed to kick off the process of renewing or issuing a new license. Reducing performance and architectural issues in their backend system gave them a 99% performance improvement!

Cache 197

Cache Architecture Database Government 197

Adrian Cockcroft

JANUARY 20, 2023

Here’s some predictions I’m making: Jack Dongarra’s efforts to highlight the low efficiency of the HPCG benchmark as an issue will influence the next generation of supercomputer architectures to optimize for sparse matrix computations. Next generation architectures will use CXL3.0 Next generation architectures will use CXL3.0

Architecture 52

Architecture Latency Benchmarking AWS 52

Smashing Magazine

NOVEMBER 22, 2021

Now, let’s take a deeper look into the actions and processes we put in place in order to achieve these significant results. This high rate of growth, coupled with the current scale and diversity of offerings presents a huge challenge when setting out to improve performance. The Wix Challenge. Measuring And Monitoring.

Website 126

Website Performance Google Media 126

Smashing Magazine

AUGUST 3, 2023

However, achieving a good LCP score is often a multi-faceted process that involves optimizing several stages of loading and rendering. HTML Processing Once a web page’s HTML file has been downloaded, the browser begins to process the contents line by line, translating code into the visual website that users interact with.

Performance 74

Performance Cache Traffic Metrics 74

The Netflix TechBlog

OCTOBER 16, 2019

By Ammar Khaku Introduction In a microservice architecture such as Netflix’s, propagating datasets from a single source to multiple downstream destinations can be challenging. This post is a high level overview of the design and architecture of Gutenberg. A publisher publishes to a topic and consumers consume from a topic.

Cache 187

Cache Architecture Metrics Java 187

IO River

NOVEMBER 2, 2023

CDN’s Effectiveness: Static Vs Dynamic ContentBack in the day, a CDN’s primary function revolved around caching static content and delivering it efficiently to end-users. It’s a static file, and CDN can cache it, enabling quick delivery to various locations. Here’s where CDN’s global architecture will not be as advantageous.Â

Cache 52

Cache Traffic Games Network 52

Smashing Magazine

AUGUST 15, 2021

Cache Merril. In an Agile approach, a technology roadmap feeds the sprint and grooming processes, providing insight into how the product will travel from start to finish. How A Technology Roadmap Feeds The Agile Sprint And Grooming Processes. How To Develop Your Business’ Technology Roadmap. 2021-08-16T06:55:00+00:00.

Technology 139

Technology Technology Development Strategy 139

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Some of DBLog’s features are: Processes captured log events in-order.

Database 212

Database Traffic Transportation Open Source 212

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Some of DBLog’s features are: Processes captured log events in-order.

Database 197

Database Traffic Transportation Open Source 197

IO River

NOVEMBER 2, 2023

CDN’s Effectiveness: Static Vs Dynamic ContentBack in the day, a CDN’s primary function revolved around caching static content and delivering it efficiently to end-users. It’s a static file, and CDN can cache it, enabling quick delivery to various locations. Here’s where CDN’s global architecture will not be as advantageous.

Cache 40

Cache Traffic Games Network 40

Smashing Magazine

NOVEMBER 17, 2022

And, just as the use of images is so present in content creation, optimizing them is key to improving our page load speed and rendering it in the shortest possible time, as images are responsible for more bytes than any other resource. And you might ask, what do images have to do with this static site architecture? Large preview ).

Media 106

Media Cache Website Mobile 106

Abhishek Tiwari

NOVEMBER 3, 2018

When it comes to innovation, most of CMS solutions are constrained by their legacy architecture (read strong coupling between content management and content presentation) which makes it difficult to serve content to new types of emerging channels such as apps and devices. Without knowing we created a JAMstack for our client.

Systems 63

Systems Cache Website Network 63

Percona

MAY 15, 2023

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. In short, any data that is written must be consistent with the data present.

Traffic 127

Traffic Scalability Database Servers 127

ACM Sigarch

JULY 17, 2023

While the goals and choice of protection schemes are implementation specific, industry best-practices such as Architecture Vulnerability Factor (AVF) modeling exist to guide these choices. An SDD is a defect that can cause a delay that is smaller than the clock cycle time for a given process node – a delay fault.

Energy 52

Energy Hardware Best Practices Architecture 52

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). This data is from the 2007 presentation.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Percona

JUNE 22, 2023

Failover mechanisms The primary purpose of failover — the automatic process of switching from a failed or offline database server to a standby or backup server — is to ensure user access and functionality of databases without interruption, even if there is a hardware or software failure.

Availability 111

Availability Database Open Source Hardware 111

Percona

APRIL 17, 2023

The swap issue is explained in the excellent article by Jeremy Cole at the Swap Insanity and NUMA Architecture. Make sure the drives are mounted with noatime and also if the drives are behind a RAID controller with appropriate battery-backed cache. The report focuses on MySQL, but it is valid for MongoDB as well. 25.84 - Total 21.04

Best Practices 52

Best Practices Design Tuning Database 52

Enprowess

MAY 24, 2022

The primary purpose of React is to simplify the process of web development that is fast, scalable, and simple. Component-Based Architecture Saves Time. Reactjs has introduced the concept of component-based architecture to the web development arena. Famous Applications Supported by ReactJS. Key features of ReactJS.

Mobile 52

Mobile Open Source Virtualization Speed 52