The Netflix TechBlog

NOVEMBER 29, 2023

Details pertaining to HDR-VMAF exceed the scope of this article and will be covered in a future blog post; for now, suffice it to say that the first version of HDR-VMAF landed internally in 2021 and we have been improving the metric ever since. 1) depicts the migration of traffic from fixed bitrates to DO encodes. We present two sets.

Open Source 252

Open Source Software Engineering Internet Internet 252

The Netflix TechBlog

AUGUST 10, 2020

In addition, with 193M members and counting, there is a huge diversity in the networks that stream our content as well as in our members’ bandwidth. It is, thus, imperative that we are sensible in the use of the network and of the bandwidth we require. Yet, given its wide support, our H.264/AVC 264/AVC Main profile per-title encodes.

Innovation 239

Innovation Traffic Network Efficiency 239

Smashing Magazine

DECEMBER 7, 2023

If you’re reading this before March 2024 and fire up your favorite performance monitoring tool, you’re going to to get a Core Web Vitals report like this one pulled from PageSpeed Insights: ( Large preview ) You’re likely used to seeing most of these metrics. INP will officially replace FID when it becomes an official Core Web Vital metric.

Traffic 94

Traffic Metrics Google Monitoring 94

Dynatrace

NOVEMBER 2, 2023

Unified observability is the ability to know how systems and infrastructure are performing based on the data they generate, such as logs, metrics, and traces. Observability also presents the information in highly consumable ways that enable teams to detect and resolve issues before they impact end users or customers.

Cloud 214

Cloud Infrastructure Strategy Hardware 214

The Netflix TechBlog

AUGUST 30, 2021

When a new hardware device is connected, the Local Registry detects and collects a set of information about it, such as networking information and ESN. As such, we can see that the traffic load on the Device Management Platform’s control plane is very dynamic over time.

Latency 213

Latency Traffic Transportation Hardware 213

Percona

FEBRUARY 24, 2023

Let’s take a look at how to get the benefits you need while spending less, based on the recommendations presented by Dani Guzmán Burgos, our Percona Monitoring and Management (PMM) Tech Lead, on this webinar (now available on demand) hosted in November last year. Configuration of the CPU metrics can be changed in the dashboard.

Cloud 120

Cloud Serverless AWS Storage 120

Dynatrace

MAY 6, 2021

To improve management of node capabilities , we added Enable/disable Web UI traffic operation for cluster node in Cluster Mission Control UI. To better present default values, we changed the position of session replay permissions in group details page. . APM-292756). APM-288329). APM-290353). APM-298915). APM-295508). APM-296578).

Operating System 224

Operating System AWS Metrics Storage 224

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

Dynatrace

JUNE 26, 2020

Dynatrace Synthetic Monitoring helps you quickly verify if your application is delivering the expected end user experience by offering an outside-in view of all your applications and services, independent of real traffic. HTTP monitor locations use the same set of IP addresses as the browser monitoring locations.

Monitoring 252

Monitoring Azure AWS Traffic 252

Speed Curve

FEBRUARY 5, 2024

However, that pesky 20% on the back end can have a big impact on downstream metrics like First Contentful Paint (FCP), Largest Contentful Paint (LCP), and any other 'loading' metric you can think of. The use of server-timing headers by content delivery networks closes a big gap. But what happens when it doesn't?

Servers 57

Servers Cache Retail Benchmarking 57

Speed Curve

NOVEMBER 30, 2022

Evaluate CDN performance by exploring the impact of time-of-day traffic patterns. The 'Metric Threshold' filter has also been introduced as a way for you to explore 'fast' versus 'slow' sessions for a metric. To use, simply select the metric along with the upper and lower bounds for each cohort. Let's take a tour.

Traffic 54

Traffic Metrics Speed Mobile 54

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. Network or connection error. There are certain metrics to be considered for a user to have a hassle-free experience. Network latency. Network Latency. Network latency can be affected due to. HTTP error.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

CSS Wizardry

MARCH 28, 2022

This genuinely surprises me, because LCP is the simplest metric to improve. The metrics above don’t matter in and of themselves, but it’s going to help your LCP if you can get them as low as possible. Plan in suitable buffer time for traffic issues, etc. of origins had good LCP 94.9% of origins had good FID 70.6% First Paint.

Virtualization 330

Virtualization Google Metrics Testing 330

Dotcom-Montior

NOVEMBER 24, 2021

There was a time when standing up a website or application was simple and straightforward and not the complex networks they are today. These systems can include physical servers, containers, virtual machines, or even a device, or node, that connects and communicates with the network. The recipe was straightforward. Peer-to-Peer.

Systems 74

Systems Monitoring Hardware Network 74

Tim Kadlec

JUNE 21, 2022

At #SmashingConf San Francisco , Robin Marx gave a presentation about HTTP/3. The TLS + QUIC layer makes UDP safer to use, but a lot of networks will likely still block for awhile. The RSVP problem: HTTP/3 might be blocked on the network or may not be enabled on the server. Here are my notes. What and Why? Unexpected Results.

Network 64

Network Mobile Google Cache 64

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

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. One could argue this is a metric-driven decision. Simulate bad network conditions and slow CPUs and make your project resilient. A screenshot of Lighthouse 3.0, Well, not so fast.

Performance 237

Performance Speed Google Media 237

Percona

JUNE 22, 2023

Load balancing : Traffic is distributed across multiple servers to prevent any one component from becoming overloaded. Load balancers can detect when a component is not responding and put traffic redirection in motion. Without enough infrastructure (physical or virtualized servers, networking, etc.),

Availability 109

Availability Database Open Source Hardware 109

Adrian Cockcroft

APRIL 5, 2023

This proposal seeks to define a standard for real-time carbon and energy data as time-series data that would be accessed alongside and synchronized with the existing throughput, utilization and latency metrics that are provided for the components and applications in computing environments.

Energy 52

Energy Metrics Cloud Operating System 52

Dynatrace

AUGUST 30, 2019

A well-established metric we provide is APDEX , which tell us how users are perceiving page load times (time to the first byte, page speed, speed index), errors (JavaScript errors, crashes,) and also factors in the overall user journey (each user interaction) including their environment (browser, geolocation, bandwidth).

Cache 193

Cache Architecture Database Government 193

Percona

AUGUST 30, 2023

High availability typically involves redundant hardware, software, applications, and network components that can quickly take over if the primary component fails; disaster recovery typically involves regular backups, replication to a secondary site, and a clear recovery plan with steps to be taken in the event of a disaster.

Database 89

Database Hardware Open Source Strategy 89

The Netflix TechBlog

NOVEMBER 22, 2019

Netflix shares how Amazon EC2 Auto Scaling allows its infrastructure to automatically adapt to changing traffic patterns in order to keep its audience entertained and its costs on target. In this session, we present our human-centric design principles that enable the autonomy our engineers enjoy. Wednesday?—?December

AWS 100

AWS Entertainment Open Source Benchmarking 100

The Netflix TechBlog

NOVEMBER 22, 2019

Netflix shares how Amazon EC2 Auto Scaling allows its infrastructure to automatically adapt to changing traffic patterns in order to keep its audience entertained and its costs on target. In this session, we present our human-centric design principles that enable the autonomy our engineers enjoy. Wednesday?—?December

AWS 100

AWS Entertainment Open Source Benchmarking 100

Smashing Magazine

APRIL 19, 2021

Google has announced that from 1st May, they will start to consider “Page Experience” as part of Search ranking , as measured by a set of metrics called Core Web Vitals. The Core Web Vitals are a set of three metrics designed to measure the “core” experience of whether a website feels fast or slow to the users, and so gives a good experience.

Google 140

Google Metrics Mobile Analytics 140

The Netflix TechBlog

JULY 30, 2019

In this blog, we would like to present the latest updates to Conductor, address some of the frequently asked questions and thank the community for their contributions. Below is a snapshot of our Kibana dashboard which shows the workflow execution metrics over a typical 7-day period.

Lambda 189

Lambda Media Open Source Metrics 189

Alex Russell

MARCH 31, 2022

De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. That is unlikely given the need for SRI annotations or the unbecoming practice of speeding up high-traffic sites, but not others. One challenge for fair inclusion is the tension between site-count-weighting and traffic-weighting.

Cache 82

Cache Government Traffic Network 82

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 ). For high traffic systems, processing the individual response times for each request may be too much work.

Lambda 98

Lambda Latency Cache C++ 98

O'Reilly Software

APRIL 30, 2018

Harnessing DNS for traffic steering, load balancing, and intelligent response. As applications have moved from local data centers to the public cloud, the role of DNS has expanded to the current role of a sophisticated director, controlling global and site load balancing, traffic steering, and providing intelligent response to user requests.

Cloud 68

Cloud Traffic Internet Internet 68

Alex Russell

JULY 14, 2021

Meanwhile, on Android, the #2 and #3 sources of web traffic do not respect browser choice. This reduces friction and commensurately increases "engagement" metrics. [6]. On Android today and early iOS versions, WebViews allow embedders to observe and modify all network traffic (regardless of encryption).

Google 121

Google Mobile Engineering Internet 121

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Getting Ready: Planning And Metrics Performance culture, Core Web Vitals, performance profiles, CrUX, Lighthouse, FID, TTI, CLS, devices. Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. Getting Ready: Planning And Metrics. Table Of Contents.

Performance 145

Performance Cache Media Metrics 145

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ). One could argue this is a metric-driven decision. When they dug into the data, they found that the reason load times had increased was that they got a lot more traffic from Africa after doing the optimizations. Simulate bad network conditions and slow CPUs and make your project resilient.

Performance 130

Performance Speed Google Media 130

CSS - Tricks

JULY 25, 2019

Lighthouse records metrics from the browser, applies a scoring model to them, and presents an overall performance score. Guidelines for improvement are suggested based on how specific metrics score. During performance tests, Lighthouse records many metrics focused on what a user sees and experiences. In PageSpeed 5.0,

Google 71

Google Engineering Speed Mobile 71

Alex Russell

MAY 9, 2022

Reduced network and device capacity correlate with other access challenges. Teams I've consulted are too often wrenched between celebration over "the big rewrite" launch and the morning-after realisation that the new stack is tanking business metrics. Accessibility: Performance is the foundation of access. Photo by Jay Heike.

Performance 86

Performance Latency Metrics Engineering 86

Highly Scalable

MAY 1, 2012

On the other hand, when one is interested only in simple additive metrics like total page views or average price of conversion, it is obvious that raw data can be efficiently summarized, for example, on a daily basis or using simple in-stream counters. A group of several such sketches can be used to process range query. Case Study.

Analytics 191

Analytics Traffic Big Data Efficiency 191

Dynatrace

JULY 11, 2019

based sample service in a staging and production namespace, a Jenkins instance and execute some moderate load to “simulate constant production traffic”. Automated Metric Anomaly Detection. From here we also get access to all other pod & process relevant metrics, e.g. memory, threads, … or accessing the container logs.

Open Source 41

Open Source Metrics Monitoring Cloud 41

Smashing Magazine

JANUARY 6, 2020

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Table Of Contents. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

Adrian Cockcroft

NOVEMBER 11, 2019

Collecting some critical metrics at one second intervals, with a total observability latency of ten seconds or less matches the human attention span much better. When there’s three ways to succeed, we still have two ways to succeed when a failure is present, and if data is corrupted, we can tell which of the three is the odd one out.

Latency 52

Latency Engineering Systems Hardware 52