The Netflix TechBlog

AUGUST 22, 2019

Baking Windows with Packer By Justin Phelps and Manuel Correa Customizing Windows images at Netflix was a manual, error-prone, and time consuming process. We looked at our process for creating a Windows AMI and discovered it was error-prone and full of toil. Last year, we decided to improve the AMI baking process.

DevOps 207

DevOps AWS Tuning Infrastructure 207

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. Log entries describe events, such as starting a process, handling an error, or simply completing some part of a workload.

Monitoring 226

Monitoring Metrics DevOps Scalability 226

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. However, achieving a good LCP score is often a multi-faceted process that involves optimizing several stages of loading and rendering. Time To First Byte (TTFB) This is the time it takes for the first piece of information from the server to reach the user’s browser.

Performance 74

Performance Cache Traffic Metrics 74

Randon ASCII

AUGUST 30, 2020

Sometimes tracking down a bug is as simple as paying attention to server dashboards, spending a few minutes in a profiler, or looking at compiler warnings. Server CPU Surprise. A few years ago I spent a few weeks doing some memory investigations on live game servers. The first server process that I profiled was… odd.

Games 142

Games Servers Code Monitoring 142

Dotcom-Montior

NOVEMBER 24, 2021

Do you have a web server? Is the web server running? The last item to check was if the web server was able to talk to the database? By definition, a distributed system is any system that comprises of multiple components on variety of machines that work together to appear as a single, organized system. Peer-to-Peer.

Systems 74

Systems Monitoring Hardware Network 74

KeyCDN

FEBRUARY 4, 2021

This query is performed by a Domain Name Server (DNS server) or servers nearby that have been assigned responsibility for that hostname. You can think of a DNS server as a phone book for the internet. A DNS server maintains a directory of domain names and translates them to IPs. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

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. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible.

Architecture 52

Architecture Performance Internet Internet 52

Dynatrace

JULY 10, 2019

This article we help distinguish between process metrics, external metrics and PurePaths (traces). If you already have the OneAgent installed, and you’d like to bring in additional process metrics into Dynatrace , the OneAgent plugin is a good fit. To get more process metrics, use a OneAgent plugin. Use the OneAgent SDK.

Java 140

Java Best Practices Metrics Azure 140

The Netflix TechBlog

FEBRUARY 9, 2021

Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. To reduce latency, assets should be generated in an offline fashion and not in real time. Briefly, let’s review the steps: The batch process is initiated by a cron job.

Engineering 165

Engineering Storage Latency Entertainment 165

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. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible.Â

Architecture 52

Architecture Performance Internet Internet 52

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 Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 240

Cache Database Servers Latency 240

Testsigma

JULY 23, 2020

Let’s briefly describe the basic definitions of each of them first and then describe in detail the underlying differences that make them fall apart in certifying the quality of each of them. Any network-related latencies result in performance hindrances in these types of applications.

Testing 63

Testing Internet Internet Latency 63

ScaleOut Software

JULY 14, 2021

The Microsoft Azure IoT ecosystem offers a rich set of capabilities for processing IoT telemetry, from its arrival in the cloud through its storage in databases and data lakes. Acting as a switchboard for incoming and outgoing messages, Azure IoT Hub forms the core of these capabilities.

IoT 52

IoT Azure Analytics Serverless 52

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

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.

Cache 92

Cache Social Media Media Network 92

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. Because the solutions still rely on writing in one single node that works as Primary. The POC Why this POC?

Traffic 121

Traffic Scalability Database Servers 121

Dotcom-Montior

DECEMBER 8, 2021

Systems, web applications, servers, devices, etc., Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation. ITSM is the policies, processes, and structure behind the lifecycle of IT services. Service Desk.

Social Media 90

Social Media Monitoring Latency DevOps 90

The Netflix TechBlog

FEBRUARY 9, 2021

Introduction and account creation Highlight our value propositions and begin the account creation process. Plans & Offers Definitions Let’s define what a plan and an offer is at Netflix. Given the flow and mode, the Orchestration Service can then process the request. Each step of the flow serves a distinct purpose.

Engineering 142

Engineering Scalability Architecture Innovation 142

Smashing Magazine

AUGUST 10, 2023

The tooling to get a report with details from the time it takes to establish a server connection to the time it takes for the full page to render is out there. In contrast, tools like DebugBear and WebPageTest use more realistic throttling that accurately reflects network round trips on a higher-latency connection.

Speed 81

Speed Monitoring Testing Network 81

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”. Websites would magically become 50% faster with the flip of a switch! What Is QUIC?

Transportation 145

Transportation Internet Internet Network 145

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 112

Cache Database Servers Latency 112

Testsigma

DECEMBER 12, 2020

Cross-browser testing might sound like an easy process of running your website on different browsers. Maintaining the infrastructure for cross-browser testing becomes a problem or a challenge only when you are testing through the manual process. Manual processes include setting your own lab or virtual systems etc. Conclusion.

Testing 53

Testing Operating System Website Latency 53

The Netflix TechBlog

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Cache 100

Cache Database Servers Latency 100

CSS - Tricks

MARCH 16, 2020

If not, then check your Node installation is working and you’re definitely in the correct project directory. then(chrome => { const opts = { port: chrome.port }; lighthouse(url, opts); }); }; If you were to execute this code, you’ll notice that something definitely seems to be happening. You should see: $ node lh.js Hello world.

Google 82

Google Latency Website Metrics 82

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). This difference by itself doesn’t do all that much (it mainly reduces the overhead on the server-side), but it leads to most of the following points. Server Sharding and Connection Coalescing.

Network 105

Network Servers Cache Traffic 105

Smashing Magazine

JANUARY 11, 2021

Micro-optimizations are great for keeping performance on track, but it’s critical to have clearly defined targets in mind — measurable goals that would influence any decisions made throughout the process. Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 145

Performance Cache Media Metrics 145

Alex Russell

MARCH 6, 2021

Advances in browser content processing. If those specs sound eerily familiar, it's perhaps because they're identical to 2016's $200USD Moto G4 , all the way down to the 2011-vintage 28nm SoC process node used to fab the chip's anemic, 2012-vintage A53 cores. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

Percona

MAY 2, 2023

During the logical backups, using client API, the data gets read from the server and returned back to the same API, which will be serialized and written into respective “ bson”, “ json” or “ csv” backup files on disk depending upon the type of backup utilities used.

Best Practices 52

Best Practices Database Storage Servers 52

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 104

Performance Cache Network Metrics 104

KeyCDN

SEPTEMBER 12, 2019

An easy way to compress images is with our image processing service that happens to also be fully integrated into our existing network. This is useful if you want to store optimized images instead of using a real-time image processing service. Another is to ensure that the settings on your server and or CDN are setup correctly.

Social Media 106

Social Media Media Google Website 106

Alex Russell

OCTOBER 22, 2017

Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. Late-loading JavaScript can cause “server-side rendered” pages to fail in infuriating ways. This input processing happens on document’s main thread , where JavaScript runs.

Performance 68

Performance Benchmarking Network Mobile 68

Brendan Gregg

SEPTEMBER 5, 2017

There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency.

Virtualization 76

Virtualization AWS Engineering Hardware 76

O'Reilly Software

MARCH 7, 2018

Working with never-ending streams of data necessitates continuous processing of it, ensuring the system keeps up with the load patterns it is exposed to, and always provides real-time, up-to-date information. Sadly, it is very common to write logic that deeply couples the notion of IO with the processing of that IO.

Transportation 72

Transportation Java Programming Architecture 72

The Agile Manager

JULY 9, 2010

They are, by definition, far more risk prone. This includes things like data storage, servers, e-mail, office productivity applications, virus protection, security and so forth. Firms dependent on low latency for competitive edge are not likely to get competitive advantage by hosting their applications in the cloud.

Retail 45

Retail Technology Technology Small Business 45