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 251

Cache Latency Airlines Logistics 251

The Netflix TechBlog

OCTOBER 19, 2020

Investigating a video streaming failure consists of inspecting all aspects of a member account. If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). Mu is the mean of each component, the latency. I’ve been thinking about this for a long time.

Lambda 98

Lambda Latency Cache C++ 98

MachMetrics

OCTOBER 16, 2019

However, there is excitement around Starlink for other reasons – namely, the implications it might have for internet speed and latency – even by just a small amount (20 milliseconds on average). Starlink’s Goal: Reduce Internet Latency. What does Starlink and Reduced Latency have to do with me?

Internet 44

Internet Internet Latency Speed 44

The Netflix TechBlog

JUNE 14, 2023

We could also swap out the implementation of a field from GraphQL Shim to Video API with federation directives. The control group’s traffic utilized the legacy Falcor stack, while the experiment population leveraged the new GraphQL client and was directed to the GraphQL Shim. How does it work?

Traffic 353

Traffic Latency Cache Metrics 353

Adrian Cockcroft

MAY 6, 2023

Then they tried to scale it to cope with high traffic and discovered that some of the state transitions in their step functions were too frequent, and they had some overly chatty calls between AWS lambda functions and S3. This is only one of many microservices that make up the Prime Video application. Finally, what were they building?

Serverless 145

Serverless Lambda Best Practices Traffic 145

The Netflix TechBlog

NOVEMBER 2, 2021

Moorthy and Zhi Li Introduction Measuring video quality at scale is an essential component of the Netflix streaming pipeline. Perceptual quality measurements are used to drive video encoding optimizations , perform video codec comparisons , carry out A/B testing and optimize streaming QoE decisions to mention a few.

Media 171

Media Innovation Metrics Latency 171

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Traffic 173

Traffic Latency Website Virtualization 173

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Latency 179

Latency Website Traffic Virtualization 179

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

O'Reilly

DECEMBER 2, 2019

I don’t need more bandwidth for video conferences or movies, but I would like to be able to download operating system updates and other large items in seconds rather than minutes. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions. At a gigabit, you don’t have to think twice.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). Latency Optimizers” – need support for very large federated deployments. When it comes to minimizing latency we’re in the sweet spot as well – our whole architecture is designed to be as fast as possible. Watch the Video.

Hardware 56

Hardware Latency Virtualization Cloud 56

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar captures 100% of interesting traces , as opposed to sampling a small fixed percentage of traffic. Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service. Is this an anomaly or are we dealing with a pattern?

Latency 296

Latency Transportation Engineering Traffic 296

The Netflix TechBlog

MAY 14, 2021

Prodicle Distribution Our service is required to be elastic and handle bursty traffic. We are expected to process 1,000 watermarks for a single distribution in a minute, with non-linear latency growth as the number of watermarks increases. Things got hairy. We wanted a scalable service that was near real-time, 2.

Traffic 160

Traffic Latency Java Google 160

IO River

NOVEMBER 2, 2023

If price is your top priority, you'll need to decide how much you're willing to sacrifice in terms of reliability and performance.What are your traffic patterns like? If your traffic is mostly static, you may be able to meet all your needs with a less expensive CDN that provides content distribution services.

Infrastructure 52

Infrastructure Traffic Cache Strategy 52

Smashing Magazine

AUGUST 3, 2023

It increases our visibility and enables us to draw a steady stream of organic (or “free”) traffic to our site. While paid marketing strategies like Google Ads play a part in our approach as well, enhancing our organic traffic remains a major priority. The higher our organic traffic, the more profitable we become as a company.

Performance 74

Performance Cache Traffic Metrics 74

VoltDB

JUNE 9, 2017

Watch the Video of our Telco Expert. downgrading the streaming rate on video). Telco companies used this information and insights to plan capital investment projects for network expansion and marketing. There is a class of real-time data that has not been used to benefit telco insights.

Analytics 40

Analytics Strategy Network Games 40

IO River

NOVEMBER 2, 2023

If price is your top priority, you'll need to decide how much you're willing to sacrifice in terms of reliability and performance.What are your traffic patterns like? If your traffic is mostly static, you may be able to meet all your needs with a less expensive CDN that provides content distribution services.

Infrastructure 52

Infrastructure Traffic Cache Strategy 52

IO River

NOVEMBER 2, 2023

‍Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. ‍But how does it decide where to send this traffic?

Traffic 52

Traffic Cache Servers Latency 52

VoltDB

JUNE 9, 2017

downgrading the streaming rate on video). For passive services like email, this wouldn’t be as necessary. Will a subscriber really know that an email that arrives five seconds late is “late”?

Analytics 40

Analytics Strategy Network Games 40

Dotcom-Montior

MAY 12, 2020

Modern web applications and pages, such as single-page applications, that put the user experience at its utmost priority are expected to be available 24/7, anywhere in the world, usable on any screen size, secure, flexible, scalable and be ready to meet traffic spikes on demand. Network latency. Network Latency. Connection time.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

IO River

NOVEMBER 2, 2023

Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. But how does it decide where to send this traffic?

Traffic 40

Traffic Cache Network Servers 40

The Morning Paper

JULY 4, 2019

Two failure modes we focus on are a service becoming slower (increase in response latency) or a service failing outright (returning errors). An example hypotheses to be tested is that users should still be able to stream video even if the bookmarking service (which remembers their last watched location in a video) is down.

Latency 77

Latency Engineering Metrics Traffic 77

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 105

Performance Network Latency Servers 105

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. Performant – DynamoDB consistently delivers single-digit millisecond latencies even as your traffic volume increases.

Internet 130

Internet Internet AWS Performance 130

All Things Distributed

MARCH 11, 2016

AWS has come to support many different workloads; from high-volume transaction processing to video transcoding at scale, from high-performance parallel computing to massive web site traffic. This lowered latency more than 2x and delivered more than 10x improvement in latency variability on the network. No gatekeepers.

AWS 147

AWS Hardware Retail Virtualization 147

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 124

Metrics Government Systems Testing 124

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 100

Metrics Government Systems Testing 100

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 100

Metrics Government Systems Testing 100

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”. TLS, TCP, and QUIC handshake durations ( Large preview ).

Transportation 145

Transportation Internet Internet Network 145

Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. This allows MongoDB to scale horizontally, handling large datasets and high traffic loads. Two other schedulers are deadline and noop.

Best Practices 52

Best Practices Design Tuning Database 52

Nick Desaulniers

FEBRUARY 22, 2015

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? As you might imagine, all of these back and forth trips made during the TLS handshake add latency overhead when compared to unencrypted HTTP requests. crypto module.

C++ 71

C++ Servers Education Government 71

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 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 11, 2021

Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. You can then mimic the 90th percentile’s experience for testing. Large preview ).

Performance 145

Performance Cache Media Metrics 145

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 145

Performance Cache Network Metrics 145

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). Large preview ).

Performance 103

Performance Cache Metrics Network 103