The Netflix TechBlog

MAY 4, 2023

These include options where replay traffic generation is orchestrated on the device, on the server, and via a dedicated service. Moreover, allowing the device to execute untested server-side code paths can inadvertently expose an attack surface area for potential misuse.

Traffic 347

Traffic Latency Tuning Systems 347

Dynatrace

OCTOBER 7, 2021

Serverless architecture shifts application hosting functions away from local servers onto those managed by providers. This means you no longer have to provision, scale, and maintain servers to run your applications, databases, and storage systems. Let’s get started. Serverless architecture: A primer. Application integration.

Serverless 325

Serverless AWS Lambda Storage 325

CSS Wizardry

SEPTEMBER 16, 2024

Reduce Transfer Size Broadly simplified… Web servers don’t send whole files at once—they chunk them into packets and send those. permitted the opening of multiple simultaneous connections to a server at once. Interestingly, 304 responses are still a form of redirect: the server is redirecting your visitor back to their HTTP cache.

Latency 234

Latency Cache Transportation Mobile 234

Dynatrace

AUGUST 30, 2019

Missing Cache Settings – Make sure you cache resources that don’t change often on the browser or use a CDN. Impacting Server-Side Requests: Dynatrace allows you to drill into your server-side requests to understand why your business logic is executing slow or fails. Well – there are many answers to this.

Cache 214

Cache Database Architecture Government 214

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Browsers now understand the classic shared HTTP cache behaviour as a privacy bug.

Cache 89

Cache Government Traffic Network 89

CSS Wizardry

AUGUST 7, 2019

A lot of people surmise that TTFB is merely time spent on the server, but that is only a small fraction of the true extent of things. TTFB isn’t just time spent on the server, it is also the time spent getting from our device to the sever and back again (carrying, that’s right, the first byte of data!). Expect closer to 75ms.

Latency 270

Latency Ecommerce Servers Mobile 270

Smashing Magazine

MAY 16, 2022

Rethinking Server-Timing As A Critical Monitoring Tool. Rethinking Server-Timing As A Critical Monitoring Tool. In the world of HTTP Headers, there is one header that I believe deserves more air-time and that is the Server-Timing header. Setting Server-Timing. Sean Roberts. 2022-05-16T10:00:00+00:00.

Servers 111

Servers Monitoring Cache Network 111

John McCalpin

FEBRUARY 17, 2025

The Multicore Era Over the past ~15 years, server processors from Intel and AMD have evolved from the early quad-core processors to the current monsters with over 50 cores per socket. GB/s peak DRAM bandwidth, requiring 6 concurrent 64-byte cache line accesses to be pending at all times to maintain full bandwidth.

Latency 71

Latency Hardware Cache Systems 71

The Netflix TechBlog

SEPTEMBER 8, 2020

On the Android team, while most of our time is spent working on the app, we are also responsible for maintaining this backend that our app communicates with, and its orchestration code. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service.

Latency 241

Latency Cache Java Traffic 241

Dynatrace

MARCH 22, 2023

This method involves providing the lowest level of access by default, deleting inactive accounts, and auditing server activity. For these, it’s important to turn off auto-completing forms, encrypt data both in transit and at rest with up-to-date encryption techniques, and disable caching on data collection forms.

Open Source 246

Open Source Artificial Intelligence Internet Internet 246

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. While classic logging is an essential tool in debugging issues, it often lacks context and only provides snapshot information of one specific location in your code/application. Those are prime candidates for their own spans.

Metrics 245

Metrics Open Source Traffic Cache 245

The Netflix TechBlog

SEPTEMBER 10, 2024

By Karthik Yagna , Baskar Odayarkoil , and Alex Ellis Pushy is Netflix’s WebSocket server that maintains persistent WebSocket connections with devices running the Netflix application. What if we wanted to move past Pushy’s pattern of delivering server-side messages? It served Pushy’s needs well for many years.

Latency 234

Latency Cache Tuning Efficiency 234

SQL Performance

SEPTEMBER 21, 2022

Even SQL Server stores some flag-based data using bitwise representation. Examples include the following: The set_options and required_cursor_options cached plan attributes, which you obtain using the sys.dm_exec_plan_attributes DMF. Setting the server configuration option “ user options” using bitwise representation.

Servers 122

Servers C++ Code Cache 122

tRPC

MARCH 20, 2025

Many projects have already chosen to upgrade and are enjoying the benefits of full React Suspense support and many other improvements, for advice on migrating your tRPC React client code you can follow TanStack Query's own migration guide. This enables you to build highly dynamic applications without suffering from server-client waterfalls.

Servers 72

Servers Cache Processing Design 72

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. Best of all, our page can load much faster since everything is cached in Elasticsearch. To act on the change, we need a GraphQL server that supports introspection.

Database 246

Database Cache Servers Performance 246

Dynatrace

NOVEMBER 29, 2021

With Lambda, you are charged based on the number of requests for your functions and their duration (the time it takes for your code to execute) with millisecond granularity. This gives operations teams specific answers to help prioritize and the root cause with end-to-end visibility down to the code level to resolve the problem.

Lambda 246

Lambda AWS Serverless Metrics 246

Smashing Magazine

SEPTEMBER 28, 2022

Every unnecessary bit of JavaScript code you bundle and serve will be more code the client has to load and process. The resource loading waterfall is a cascade of files downloaded from the network server to the client to load your website from start to finish. How will you serve blazingly fast code, then? More after jump!

Cache 141

Cache Performance Servers Architecture 141

CSS Wizardry

AUGUST 24, 2022

What if another file on the critical path had dropped out of cache and needed fetching from the network? We can take reasonable measures (always refresh from a cold cache; throttle to a constant network speed), but we can’t account for everything. What if we incurred a DNS lookup this time that we hadn’t the previous time?

Benchmarking 266

Benchmarking Metrics Cache Network 266

Dynatrace

NOVEMBER 5, 2019

Dependency agent Installation – Maps connections between servers and processes. Application Insights – Collects performance metrics of the application code. This requires the installation of an instrumentation package into the code making it a hands-on approach to monitoring. Hybrid and multi-cloud platform –.

Azure 198

Azure Artificial Intelligence Metrics Innovation 198

SQL Performance

OCTOBER 7, 2020

Its raison d’être is to cache result rows from a plan subtree, then replay those rows on subsequent iterations if any correlated loop parameters are unchanged. Table-valued functions use a table variable, which can be used to cache and replay results in suitable circumstances. Spools are the least costly way to cache partial results.

Servers 106

Servers Cache Azure Performance 106

SQL Performance

OCTOBER 13, 2021

I also compare them with stored procedures, mainly focusing on differences in terms of default optimization strategy, and plan caching and reuse behavior. Before implementing the function itself, here’s code to create a supporting index on the Sales.Orders table: USE TSQLV5 ; GO. CREATE INDEX idx_nc_cid_odD_oidD_i_eid ON Sales.

Cache 144

Cache Strategy C++ Code 144

Smashing Magazine

NOVEMBER 4, 2021

One of the main benefits of GraphQL is the client’s ability to request what they need from the server and receive that data exactly and predictably. We’ll be learning how to do this with GraphQL Features like Cache Update, Subscriptions, and Optimistic UI. Let’s get right into the code. David Atanda. 2021-11-04T11:30:00+00:00.

Cache 129

Cache Servers Code Transportation 129

Scalegrid

JANUARY 25, 2024

You will need to know which monitoring metrics for Redis to watch and a tool to monitor these critical server metrics to ensure its health. Evaluating factors like hit rate, which assesses cache efficiency level, or tracking key evictions from the cache are also essential elements during the Redis monitoring process.

Metrics 130

Metrics Monitoring Latency Cache 130

All Things Distributed

SEPTEMBER 3, 2013

Get it wrong and you’re looking at sleepless nights, struggling to keep up with growth and fighting to keep your app available while you rewrite critical portions of your code. Amazon ElastiCache is a fully managed, in-memory caching service for customers to optimize the latency, performance and cost of their read workloads.

Cache 99

Cache Cloud Performance Retail 99

O'Reilly Software

DECEMBER 28, 2017

Learn how to properly design RESTful APIs communication with clients, accounting for request structure, authentication, and caching. In this second part, we will talk in more detail about how the server should react to incoming requests with status codes. We are using the principles of RESTful architecture over HTTP.

Servers 83

Servers Cache Mobile Architecture 83

The Netflix TechBlog

OCTOBER 16, 2019

Often the data is held in memory by consumers and used as a “total cache”, where it is accessed at runtime by client code and atomically swapped out under the hood. for example Open Connect Appliance cache configuration, supported device type IDs, supported payment method metadata, and A/B test configuration.

Cache 191

Cache Architecture Metrics Java 191

Smashing Magazine

NOVEMBER 2, 2021

Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. Creating A Magento PWA: Customizing Themes vs. Coding From Scratch. One of the reasons for that is because a PWA has the same code base. So unlike the case with native applications, the progressive web app needs to be coded only once. Alex Husar.

Code 90

Code Cache Mobile Retail 90

Smashing Magazine

JUNE 29, 2021

Without build optimizations (incremental builds, caching, we will get to those soon) this will eventually become unmanageable as well — think about going through all images in a website: resizing, deleting, and/or creating new files over and over again. Under the hood, it simplifies a lot of the work to the server-side.

Cache 139

Cache Website Strategy Traffic 139

Smashing Magazine

DECEMBER 23, 2020

You’ll also find example code or references to more specific guides so you can implement these tips to your PWA. The service workers enable the offline usage of the PWA by fetching cached data or informing the user about the absence of an Internet connection. Cached content with IndexedDB. Skeleton screen examples on Code My UI.

Cache 136

Cache Internet Internet Google 136

Scalegrid

MARCH 28, 2024

Key Takeaways Redis offers complex data structures and additional features for versatile data handling, while Memcached excels in simplicity with a fast, multi-threaded architecture for basic caching needs. Redis is better suited for complex data models, and Memcached is better suited for high-throughput, string-based caching scenarios.

Cache 130

Cache Storage Scalability Architecture 130

Smashing Magazine

JULY 18, 2022

Segmented Rendering is a new pattern for the Jamstack that lets you personalize content statically, without any sort of client-side rendering or per-request Server-Side Rendering. Like other similar UI libraries, React provides two ways of rendering content: client-side and server-side. CSR, SSR, SSG… Let’s Clarify What They Are.

Cache 127

Cache Website Servers Energy 127

The Netflix TechBlog

NOVEMBER 23, 2020

The gRPC code is auto-generated from the gNMI protobuf model and gNMI carries the data modeled in OpenConfig, which has some encoding. We chose to build gnmi-gateway in Golang given the first-class support for protobufs in Go and that much of the existing reference code for gNMI exists in Golang.

Open Source 188

Open Source Network Transportation Cache 188

Smashing Magazine

MAY 25, 2022

The output of the code above would be the following: WeakMap {{…} => 'done'} man = null; console.log(human). The object is retained in memory and can be accessed with the following code: console.log(human[0]). let human = new WeakMap(): // Create an object, and assign it to a variable called man. It keeps the object in memory.

Cache 128

Cache Programming Storage Code 128

Smashing Magazine

NOVEMBER 22, 2021

A website’s performance can make or break its success, yet in August 2020, despite many improvements we had previously made, such as implementing Server-Side Rendering (SSR), the ratio of Wix websites with good Google Core Web Vitals (CWV) scores was only 4%. Dan Shappir. 2021-11-22T10:30:00+00:00. 2021-11-22T11:06:56+00:00.

Website 141

Website Performance Google Website Performance 141

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. This speeds up accesses and updates while offloading back-end database servers.

Cache 52

Cache Storage Servers Database 52

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. This speeds up accesses and updates while offloading back-end database servers.

Cache 52

Cache Storage Servers Database 52

Dynatrace

APRIL 21, 2022

Using high-fidelity metrics, logs, code-level tracing, and a dynamic topology map of your applications, Davis can identify the precise root cause and prioritize its business impact. Missing caching layers. Instead, it remains up to human experts to correlate and analyze the data in time-consuming war rooms. Reliability.

Azure 246

Azure Monitoring Virtualization Metrics 246