The Netflix TechBlog

SEPTEMBER 8, 2020

Over the course of this post, we will talk about our approach to this migration, the strategies that we employed, and the tools we built to support this. Being able to canary a new route let us verify latency and error rates were within acceptable limits. Background The Netflix Android app uses the falcor data model and query protocol.

Latency 233

Latency Cache Java Traffic 233

The Morning Paper

NOVEMBER 10, 2019

Here are the bombshell paragraphs: Our datacenter applications seek ever more CPU-efficient and lower-latency communication, which Pony Express delivers. Rather than reimplement TCP/IP or refactor an existing transport, we started Pony Express from scratch to innovate on more efficient interfaces, architecture, and protocol.

Network 92

Network Transportation Latency Entertainment 92

High Scalability

MARCH 22, 2019

µs of replication latency on lossy Ethernet, which is faster than or comparable to specialized replication systems that use programmable switches, FPGAs, or RDMA.". At some point, the e-mail I send over WiFi will hit a wire, of course". We achieve 5.5 matthewstoller : I just looked at Netflix’s 10K.

Internet 134

Internet Internet Scalability Wireless 134

The Morning Paper

JANUARY 28, 2020

Shredder is " a low-latency multi-tenant cloud store that allows small units of computation to be performed directly within storage nodes. " " Running end-user compute inside the datastore is not without its challenges of course. V8 is lightweight enough that it can easily support thousands of concurrent tenants.

Serverless 99

Serverless Storage Latency Cloud 99

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency.

Mobile 104

Mobile Cloud Latency Games 104

The Morning Paper

OCTOBER 26, 2020

On the surface this is a paper about fast data ingestion from high-volume streams, with indexing to support efficient querying. It’s limited by the laws of physics in terms of end-to-end latency. In Helios, this translates to coming up with efficient techniques for splitting computation between end devices, edge, and cloud.

Cloud 104

Cloud Big Data Latency Architecture 104

The Morning Paper

FEBRUARY 6, 2020

Given the simplicity and economic appeal of FaaS, it is interesting to explore designs that preserve the autoscaling and operational benefits of current offerings, while adding performant, cost-efficient and consistent shared state and communication. Oh, and there’s a scheduler too of course to keep all the plates spinning.

Lambda 98

Lambda Serverless Cache Latency 98

The Morning Paper

NOVEMBER 15, 2020

Improving the efficiency with which we can coordinate work across a collection of units (see the Universal Scalability Law ). Options 1 and 2 are of course the ‘scale out’ options, whereas option 3 is ‘scale up’. This makes the whole system latency sensitive. Increasing the amount of work we can do on a single unit.

Servers 128

Servers Hardware Latency Design 128

The Morning Paper

JUNE 13, 2019

Making queries to an inference engine has many of the same throughput, latency, and cost considerations as making queries to a datastore, and more and more applications are coming to depend on such queries. First off there still is a model of course (but then there are servers hiding behind a serverless abstraction too!). autoscaling).

Hardware 58

Hardware Latency Serverless Energy 58

Dotcom-Montior

DECEMBER 8, 2021

We are kidding of course, but you know something is bad if happens that early in the morning. By ITIL definition, the service desk may take the form of incident resolution or service requests, but whatever the case, the primary goal of the service desk to provide quick and efficient service. Nothing good happens at 2:00 a.m.,

Social Media 90

Social Media Monitoring Latency DevOps 90

Smashing Magazine

MARCH 25, 2021

Also, if you are not using a content delivery network (CDN) or multiple CDNs to map users to the closest edge regions for reduced latencies — a practice called suboptimal routing — you might slow down the start of the video. And of course, you need to host and deliver your images. You don’t have to offload your content.

Media 118

Media Performance Mobile Latency 118

Highly Scalable

SEPTEMBER 18, 2012

These developments gradually highlight a system of relevant database building blocks with proven practical efficiency. Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. Data Placement.

Database 213

Database Latency C++ Scalability 213

The Netflix TechBlog

DECEMBER 2, 2019

To do this, we have teams of experts that develop more efficient video and audio encodes , refine the adaptive streaming algorithm , and optimize content placement on the distributed servers that host the shows and movies that you watch. The goal is to bring you joy by delivering the content you love quickly and reliably every time you watch.

Metrics 143

Metrics Strategy Efficiency Testing 143

The Morning Paper

JUNE 23, 2019

In ProtoCache (a component of a widely used Google application), 27% of its latency when using a traditional S+RInK design came from marshalling/un-marshalling. The network latency of fetching data over the network, even considering fast data center networks. Horses for courses! Fetching too much data in a single query (i.e.,

Cache 79

Cache Latency Google Lambda 79

The Netflix TechBlog

DECEMBER 2, 2019

To do this, we have teams of experts that develop more efficient video and audio encodes , refine the adaptive streaming algorithm , and optimize content placement on the distributed servers that host the shows and movies that you watch. The goal is to bring you joy by delivering the content you love quickly and reliably every time you watch.

Metrics 140

Metrics Strategy Efficiency Testing 140

The Netflix TechBlog

DECEMBER 2, 2019

To do this, we have teams of experts that develop more efficient video and audio encodes , refine the adaptive streaming algorithm , and optimize content placement on the distributed servers that host the shows and movies that you watch. The goal is to bring you joy by delivering the content you love quickly and reliably every time you watch.

Metrics 130

Metrics Strategy Efficiency Testing 130

Dotcom-Montior

NOVEMBER 16, 2021

As defined by the Google SRE initiative, the four golden signals of monitoring include the following metrics: Latency. Latency is the amount of time, or delay, a service takes to respond to a request. Clearly, slow response times will affect the perceived user experience. Monitoring can provide a way to differentiate between.

Monitoring 91

Monitoring Google DevOps Engineering 91

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. Both of these metrics will fluctuate over the course of a test, so we post metric values at regular intervals throughout the test. and often before they are even committed to the codebase.

Performance 199

Performance Metrics Performance Testing Testing 199

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 106

Performance Network Latency Servers 106

The Morning Paper

SEPTEMBER 5, 2019

For response times (latencies) reporting a simple metric such as ‘average’ is next to useless. Instead we want to understand what’s happening at different latency percentiles (e.g A characteristic of latency distributions is that they have a long tail. Why do we need a new sketch? At the 50th percentile, an accuracy within 0.5%

Latency 52

Latency Metrics Open Source Java 52

All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. We help Supercell to quickly develop, deploy, and scale their games to cope with varying numbers of gamers accessing the system throughout the course of the day.

AWS 124

AWS Cloud Games Serverless 124

Percona

MAY 15, 2023

This level of distribution will seriously affect the efficiency of the operation, which will increase the response time significantly. This, of course, is unless I can organize my products by country as well, which is a bit unusual nowadays but not impossible. This is it.

Traffic 124

Traffic Scalability Database Servers 124

The Morning Paper

MAY 28, 2019

Of course analog signalling comes with a whole bunch of challenges of its own, which is one of the reasons we tend to convert to digital. The resulting system can integrate seamlessly into a scikit-learn based development process, and dramatically reduces the total energy usage required for classification with very low latency.

Energy 52

Energy Hardware Efficiency Architecture 52

Smashing Magazine

SEPTEMBER 29, 2021

Users appreciate high-quality visuals, but care needs to be taken to deliver those hero images, product photos and cat memes as efficiently and effectively as possible. The efficiency of a codec can be mainly measured by how much compression it can achieve. DRM-free, of course. Evaluating Codecs. Compression. AVIF Benefits.

Open Source 144

Open Source Speed Website Google 144

Alex Russell

JANUARY 30, 2024

If you or your company are able to generate a credible worldwide latency estimate in the higher percentiles for next year's update, please get in touch. Of course, any trend that can't continue won't, and INP 's impact is already being felt.

Performance 90

Performance Network Mobile Speed 90

The Morning Paper

JANUARY 12, 2020

Given this higher cost for exploration, and the fact that logs for learning from are likely to explore very little of the state space, policy learning needs to be data-efficient. One simple way to assess the data efficiency of a model is to look at the amount of data necessary to achieve a certain performance threshold.

Programming 43

Programming Systems Efficiency Network 43

CSS - Tricks

APRIL 1, 2021

Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. I’m going to update my referenced URL to the new site to help decrease latency that adds drag to the initial page load. KB to 11.2 That’s a win!

Cache 92

Cache Social Media Media Network 92

The Morning Paper

SEPTEMBER 12, 2019

[j:9] (COL, ACT) AS SELECT WI.COL, softmax(WI.VAL + B.VEC) FROM WI[i][j] AS WI, B[i][j] AS B WHERE WI.COL = B.COL; The backward pass can be expressed similarly: Execution planning for efficiency. Once a library of UDFs have been built up of course, they could be reused across computations. Here I’ll just touch on the highlights.

Network 44

Network Database Programming Hardware 44

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”. For example, TCP requires a “ handshake ” to set up a new connection.

Transportation 145

Transportation Internet Internet Network 145

Alex Russell

JUNE 20, 2020

Rendering text is important (think login screens), but there's no product without low-latency, adaptive codecs, networking, and camera/microphone access. The a secondary benefit to adjacency is that it provides time to learn and course-correct. You're usually better off tackling latency with aggressive performance budgeting. ??.

Hardware 55

Hardware Games Java Media 55

High Scalability

FEBRUARY 19, 2021

Treating failure as a matter of course. In particular, they are not effective in networks spanning multiple regions because their efficiency breaks down if the latency becomes too high when communicating among peers. Fault tolerant designs treat failures as routine.

Engineering 215

Engineering Systems Scalability Availability 215

KeyCDN

FEBRUARY 14, 2019

This results in a reduction in distance travelled and therefore latency, as well as reduces the load on your origin server. Speeding up GIF Videos - In Summary There’s no sign of GIFs going away anytime soon, but serious web developers need to look ahead and embrace more efficient alternatives.

Speed 50

Speed Website Latency Cache 50

Alex Russell

APRIL 29, 2021

Efficiently enables new styles of drawing content on the web , removing many hard tradeoffs between visual richness , accessibility, and performance. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Form-associated Web Components. CSS Custom Paint. Trusted Types.

Media 145

Media Games Education Engineering 145

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Of course, your data might show that your customers are not on these devices, but perhaps they simply don’t show up in your analytics because your service is inaccessible to them due to slow performance.

Performance 104

Performance Cache Network Metrics 104

Alex Russell

OCTOBER 22, 2017

Contended, over-subscribed cells can make “fast” networks brutally slow, transport variance can make TCP much less efficient , and the bursty nature of web traffic works against us. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss).

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 11, 2021

This might be very different for your company, of course, but that’s a close enough approximation of a majority of customers out there. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Thanks to Tim Kadlec, Henri Helvetica and Alex Russel for the pointers! Large preview ).

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

AUGUST 20, 2021

Platforms such as Snipcart , CommerceLayer , headless Shopify , and Stripe enable you to manage products in a friendly UI while taking advantage of the benefits of Jamstack: Amazon’s famous study reported that for every 100ms in latency, they lose 1% of sales. Of course the template approach is cheaper. Drupal is not just a CMS.

Ecommerce 139

Ecommerce Website Government Internet 139