The Netflix TechBlog

OCTOBER 26, 2021

Say at Netflix that we run a test that aims to reduce some measure of latency, such as the delay between a member pressing play and video playback commencing. Given the variety of devices and internet connections that people use to access Netflix, there is a lot of natural variability in this metric across our users.

Testing 213

Testing Metrics Latency Design 213

VoltDB

FEBRUARY 29, 2024

In this fast-paced ecosystem, two vital elements determine the efficiency of this traffic: latency and throughput. LATENCY: THE WAITING GAME Latency is like the time you spend waiting in line at your local coffee shop. All these moments combined represent latency – the time it takes for your order to reach your hands.

Latency 52

Latency Games Traffic Network 52

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Kinesis Video Streams. The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Dynatrace news. Amazon Elasticsearch Service (ES).

AWS 138

AWS Metrics IoT Storage 138

Dynatrace

DECEMBER 22, 2019

AWS offers a broad set of global, cloud-based services including computing, storage, networking, Internet of Things (IoT), and many others. Amazon Kinesis Video Streams. The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Dynatrace news. Amazon Elasticsearch Service (ES).

AWS 134

AWS Metrics IoT Storage 134

Brendan Gregg

JULY 4, 2021

The video is on [youtube]: The slides are on [slideshare] or as a [PDF]: I work on many areas of performance, but recently I've had a lot of demand to talk about BPF. Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 121

Performance Latency Hardware Storage 121

Apica

JULY 1, 2022

And with streaming services increasing all the time, more and more providers are embracing technologies that allow them to provide video content through browsers and a variety of dedicated apps. HLS is one of the most common formats these days, originally intended as an alternative to Flash to stream over the internet.

Internet 52

Internet Internet Latency Virtualization 52

MachMetrics

OCTOBER 16, 2019

A lot of coverage on this project is centered (rightfully) around the potential of this project to deliver fast internet to underdeveloped nations at a minimal cost. Starlink’s Goal: Reduce Internet Latency. At a cost of 300 million dollars, this cable reduced the latency of this transatlantic journey down to 59.95

Internet 44

Internet Internet Latency Speed 44

All Things Distributed

OCTOBER 12, 2016

Three years ago, as part of our AWS Fast Data journey we introduced Amazon ElastiCache for Redis , a fully managed in-memory data store that operates at sub-millisecond latency. This allows for faster failover times while minimizing latency. Building upon Redis. Redis and Fast Data. “We

Scalability 103

Scalability Cache Analytics AWS 103

Brendan Gregg

FEBRUARY 28, 2023

The video is now on [YouTube]: The slides are [online] and as a [PDF]: first prev next last / permalink/zoom In Q&A I was asked about CXL (compute express link) which was fortunate as I had planned to cover it and then forgot, so the question let me talk about it (although Q&A is missing from the video). Ford, et al., “TCP

Performance 103

Performance Latency Cache Virtualization 103

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. However, it is extremely challenging to actually deploy them at Internet scale.

Transportation 145

Transportation Internet Internet Network 145

Alex Russell

APRIL 29, 2021

In almost every area, Apple's low-quality implementation of features WebKit already supports requires workarounds not necessary for Firefox (Gecko) or Chrome/Edge/Brave/Samsung Internet (Blink). Next-generation video codecs, supported in many modern chips, but also a licensing minefield. Fundamentally enabling for video creation apps.

Media 145

Media Games Education Engineering 145

Scalegrid

JUNE 7, 2024

Its compatibility with MQTT, known for being a compact messaging protocol, Demonstrates its adaptability for use in Internet of Things (IoT) contexts. While ensuring that messages are durable brings several advantages, it’s important to note that it doesn’t significantly degrade performance regarding throughput or latency.

IoT 130

IoT Software Architecture Architecture Scalability 130

All Things Distributed

DECEMBER 12, 2013

Moreover, a GSI''s performance is designed to meet DynamoDB''s single digit millisecond latency - you can add items to a Users table for a gaming app with tens of millions of users with UserId as the primary key, but retrieve them based on their home city, with no reduction in query performance.

Games 110

Games Scalability Database Retail 110

Smashing Magazine

AUGUST 3, 2021

Different browsers running on different platforms and hardware, respecting our user preferences and browsing modes (Safari Reader/ assistive technologies), being served to geo-locations with varying latency and intermittency increase the likeness of something not working as intended. More after jump! On design systems, CSS/JS and UX.

Network 145

Network Engineering Availability Monitoring 145

Smashing Magazine

AUGUST 20, 2021

Fast-forward 30 years, and website technology has changed significantly — we have images, stylesheets, JavaScript, streaming video, AJAX, animation, WebSockets, WebGL, rounded corners in CSS — the list goes on. This broad range of use cases has helped grow WordPress to power almost 40% of the internet. More after jump!

Ecommerce 140

Ecommerce Website Government Internet 140

VoltDB

JUNE 1, 2017

Latency Optimizers” – need support for very large federated deployments. 5G expects a latency of 1ms , which considering that the speed of light means the data center can’t be more than 186 miles away, or 93 miles for a round trip, assuming an instant response. Watch the Video. Everything else is just Horns and Valkyries ….

Hardware 56

Hardware Latency Virtualization Cloud 56

Brendan Gregg

JULY 4, 2021

I summarized these topics and more as a plenary conference talk, including my own predictions (as a senior performance engineer) for the future of computing performance, with a focus on back-end servers. Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

FEBRUARY 28, 2023

The video is now on YouTube : The slides are online and as a PDF : first prev next last / permalink/zoom In Q&A I was asked about CXL (compute express link) which was fortunate as I had planned to cover it and then forgot, so the question let me talk about it (although Q&A is missing from the video). Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Particular Software

JUNE 3, 2019

Everyone who is old enough to remember the sound of connecting to the Internet with a dial-up modem or of AOL announcing that "You've got mail" is acutely aware that there is an upper limit to how fast something can be downloaded, and it never seems to be as fast as we would like it. The big challenge is that we must strike a balance.

Latency 40

Latency Speed Network Strategy 40

Nick Desaulniers

FEBRUARY 22, 2015

How do such techniques enable us to bank online and carry out other sensitive transactions on the Internet while trusting numerous relays? First, please check out this excellent video on public key crypto: Hopefully that explains the gist of the technique, but what might it actually look like in code?

Servers 71

Servers C++ Education Government 71

VoltDB

APRIL 25, 2024

While Wi-Fi theoretically can achieve 5G-like speeds, it falls short in providing the consistent performance and reliability that 5G offers, including low latency, higher speeds, and increased bandwidth. Additionally, frequent handoffs between access points can lead to delays and connection drops.

Network 52

Network IoT Wireless Infrastructure 52

IO River

NOVEMBER 2, 2023

With the ever-growing demands of the internet, websites and web applications face the challenge of delivering content swiftly and efficiently to users worldwide. For instance, you might set up rules to send video streaming requests to data center A and image loading requests to data center B. What is “Origin”?An

Traffic 52

Traffic Cache Servers Network 52

Brendan Gregg

SEPTEMBER 5, 2017

. ## Observability Here's the big picture of performance observability tools on Linux, from my [Linux performance] page, where I also have diagrams for other tool types, as well as videos and slides of prior Linux performance talks: I also have a USE Method: Linux Performance Checklist , as a different way to navigate and apply the tools.

Virtualization 75

Virtualization AWS Engineering Hardware 75

IO River

NOVEMBER 2, 2023

With the ever-growing demands of the internet, websites and web applications face the challenge of delivering content swiftly and efficiently to users worldwide. Latency is a concept that increases with distance, so a signal that has to travel 1,000 KM will be much faster compared to a signal sprinting for that 100,000 KM.

Traffic 40

Traffic Cache Servers Network 40

Smashing Magazine

AUGUST 22, 2021

This is because HTTP/3 and QUIC mainly help deal with the somewhat uncommon yet potentially high-impact problems that can arise on today’s Internet. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 107

Performance Network Latency Servers 107

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. ‍What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

All Things Distributed

SEPTEMBER 29, 2016

Based in the Paris area, the region will provide even lower latency and will allow users who want to store their content in datacenters in France to easily do so. Another of these exciting start-ups is Teads which runs video advertising for publishers and advertisers. The new region in France will be ready for customers to use in 2017.

AWS 161

AWS IoT Internet Internet 161

KeyCDN

FEBRUARY 14, 2019

Thanks to their simplicity and widespread support, GIF files remain wildly popular despite the dozens of other image and video formats available today. There’s a debate among web developers whether or not animated image formats should be ditched altogether in favor of video formats.

Speed 50

Speed Website Servers Latency 50

Dotcom-Montior

MAY 6, 2020

Users can also watch the actual URL loading video in the browser window. Browser (Chrome, Firefox, Internet Explorer, mobile browsers etc…). It’s important to mention that within the Dotcom Monitor platform there is a feature that a user can watch the actual URL loading video in the browser window (shown below).

Performance 53

Performance Cache Website Speed 53

Dotcom-Montior

MARCH 6, 2022

Users can also watch the actual URL loading video in the browser window. It’s important to mention that within the Dotcom Monitor platform there is a feature that a user can watch the actual URL loading video in the browser window (shown below). Do You Need a CDN?

Performance 52

Performance Cache Website Speed 52

Smashing Magazine

JANUARY 6, 2020

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik and detailed guide by Rick Viscomi) or Treo Sites , a RUM monitoring tool that is powered by Chrome UX Report. You can then mimic the 90th percentile’s experience for testing.

Performance 112

Performance Cache Network Servers 112

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing).

Performance 105

Performance Cache Metrics Network 105

Smashing Magazine

JANUARY 11, 2021

Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Media Metrics 145

Adrian Cockcroft

NOVEMBER 18, 2024

SUS207 | Cutting costs and carbon: Using AWS Graviton3 in streaming Amazon Prime Video, a leading streaming provider, collaborated with AWS to upgrade its platform using energy-efficient AWS Graviton3 processors. After re:Invent, I will update this post with the videos from the event, as I did last year. See you there!

AWS 98

AWS Energy Lambda Government 98