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 24, 2022

I can reload the exact same page under the exact same network conditions over and over, and I can guarantee I will not get the exact same, say, DOMContentLoaded each time. What if another file on the critical path had dropped out of cache and needed fetching from the network? In browserland, this is known Queuing.

Benchmarking 266

Benchmarking Metrics Cache Network 266

Dynatrace

DECEMBER 13, 2023

Mobile applications (apps) are an increasingly important channel for reaching customers, but the distributed nature of mobile app platforms and delivery networks can cause performance problems that leave users frustrated, or worse, turning to competitors. Load time and network latency metrics. Minimize network requests.

Best Practices 246

Best Practices Mobile Metrics Performance 246

Smashing Magazine

MAY 9, 2022

Performance Game Changer: Browser Back/Forward Cache. Performance Game Changer: Browser Back/Forward Cache. With that caveat out of the way, let’s get to the guts of the article: What is the Back/Forward Cache and why does it matter so much? Didn’t The HTTP Cache Do All That Anyway? Barry Pollard.

Cache 106

Cache Games Performance Website 106

CSS Wizardry

SEPTEMBER 16, 2024

This gives fascinating insights into the network topography of our visitors, and how much we might be impacted by high latency regions. You can’t change that someone was from Nigeria, you can’t change that someone was on a mobile, and you can’t change their network conditions. Go and give it a quick read—the context will help.

Latency 234

Latency Cache Transportation Mobile 234

Dynatrace

NOVEMBER 28, 2022

For AWS Lambda, the largest contributor to startup latency is the time spent initializing an execution environment, which includes loading function code and initializing dependencies. With SnapStart enabled, function code is initialized once when a function version is published. What is Lambda? What is Lambda SnapStart?

Lambda 246

Lambda AWS Serverless Latency 246

Dynatrace

AUGUST 30, 2019

Missing Cache Settings – Make sure you cache resources that don’t change often on the browser or use a CDN. Too many fine-grained services leading to network and communication overhead. Missing caching layers, e.g. provide a read-only cache for static data. Well – there are many answers to this.

Cache 214

Cache Database Architecture Government 214

Dynatrace

MAY 17, 2023

But its underlying goal is quite humble and straightforward: it wants to enable you to observe an IT system (for example, a web application, infrastructure, or services) and gain insight to its behavior, such as performance, error rates, hot spots of executed instructions in code, and more. Those are prime candidates for their own spans.

Metrics 245

Metrics Open Source Traffic Cache 245

The Netflix TechBlog

NOVEMBER 23, 2020

Introducing gnmi-gateway: a modular, distributed, and highly available service for modern network telemetry via OpenConfig and gNMI By: Colin McIntosh, Michael Costello Netflix runs its own content delivery network, Open Connect , which delivers all streaming traffic to our members.

Open Source 188

Open Source Network Transportation Cache 188

Dynatrace

SEPTEMBER 13, 2023

Using an interactive no/low code editor, you can create workflows or configure them as code. Storing frequently accessed data in faster storage, usually in-memory caching, improves data retrieval speed and overall system performance. Beyond  Beyond efficiency, validating performance thresholds is also crucial for revenues.

AWS 305

AWS Efficiency Azure Cloud 305

ACM Sigarch

DECEMBER 19, 2022

When I worked at Google, fleet-wide profiling revealed that 25-35% of all CPU time was spent just moving bytes around: memcpy, strcmp, copying between user and kernel buffers in network and disk I/O, hidden copy-on-write in soft page faults, checksumming, compressing, decrypting, assembling/disassembling packets and HTML pages, etc.

Design 145

Design Systems Cache Network 145

Speed Curve

JANUARY 19, 2025

Of course writes were much less common than reads, so I added a caching layer for reads, and that did the trick. Then in 2008, Google issued a code yellow for application speed, and I was the code yellow lead for Google Docs. Leadership wanted to know the real page load times end users were experiencing.

Performance 98

Performance Google Speed Metrics 98

Smashing Magazine

DECEMBER 23, 2020

However, let’s take a step further and learn how to deploy modern qualities to PWAs, such as offline functionality, network-based optimizing, cross-device user experience, SEO capabilities, and non-intrusive notifications and requests. When developing a PWA, you can cache the application shell’s resources and assets in the browser.

Cache 136

Cache Internet Internet Google 136

The Netflix TechBlog

SEPTEMBER 10, 2024

As the scale of the messages being processed increased and we were making more code changes in the message processor, we found ourselves looking for something more flexible. That Pushy delivers the message to the target device (4), and the original Pushy will receive a status code in response, which it can pass back to the source device (5).

Latency 234

Latency Cache Tuning Efficiency 234

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? Caching Schemes.

Cache 141

Cache Performance Servers Architecture 141

The Netflix TechBlog

JULY 1, 2019

Our UI runs on top of a custom rendering engine which uses what we call a “surface cache” to optimize our use of graphics memory. Surface Cache Surface cache is a reserved pool in main memory (or separate graphics memory on a minority of systems) that the Netflix app uses for storing textures (decoded images and cached resources).

Cache 167

Cache Design Testing Development 167

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. It is not possible to ship code incrementally.

Cache 139

Cache Website Strategy Traffic 139

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

Dynatrace

APRIL 21, 2022

Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host. Too many fine-grained services leading to network and communication overhead. Missing caching layers. Let’s look at an example. Reliability.

Azure 246

Azure Monitoring Virtualization Metrics 246

CSS Wizardry

AUGUST 7, 2019

The reason is because mobile networks are, as a rule, high latency connections. only to find that the resource they’re requesting isn’t in that PoP ’s cache. Application runtime: It’s kind of obvious really, but the time it takes to run your actual application code is going to be a large contributor to your TTFB.

Latency 270

Latency Ecommerce Servers Mobile 270

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

Scalegrid

JANUARY 25, 2024

Effective management of memory stores with policies like LRU/LFU proactive monitoring of the replication process and advanced metrics such as cache hit ratio and persistence indicators are crucial for ensuring data integrity and optimizing Redis’s performance. <code> 127.0.0.1:6379> <code> 127.0.0.1:6379>

Metrics 130

Metrics Monitoring Latency Cache 130

Smashing Magazine

MAY 16, 2022

This header can be set on the response of any network resource, such as XHR, fetch, images, HTML, stylesheets, etc. These subtypes are currently the only subtypes related to network requests and thus exposing the Server-Timing information. Setting Server-Timing. — any freeform data that suits your needs.

Servers 111

Servers Monitoring Cache Network 111

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

NOVEMBER 4, 2021

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. Just before we start, this is the repo containing the code demonstrating everything under Real-time update on GraphQL, using Apollo as a state management tool, Fragments, and Apollo directives.

Cache 129

Cache Servers Code Transportation 129

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

Jos

JUNE 2, 2018

There was something gratifying in taking a code that takes minutes to run and make it run in a handful seconds. Normally the team decides how well to cover and test the code, and it’s important that all developers in a team know how to write tests. Simulate bad network conditions and slow CPUs and make your project resilient.

Performance 237

Performance Speed Google Media 237

Speed Curve

FEBRUARY 10, 2025

Photo by Freepik Part of the answer is this: You have a lot of control over the design and code for the pages on your site, plus a decent amount of control over the first and middle mile of the network your pages travel over. Browser use (and abuse) Browser age is just one issue. That's only one half of what you need to know.

Hardware 52

Hardware Internet Internet Speed 52

Smashing Magazine

NOVEMBER 22, 2021

While mobile devices have come a long way in terms of network and CPU speed, many of them are still significantly underpowered when compared to desktops, especially in countries where mobile connectivity is still poor. In addition, this significantly reduced the amount of JavaScript code that needs to be downloaded by the browser.

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. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

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. It’s not enough simply to lash together a set of servers hosting a collection of in-memory caches.

Cache 52

Cache Storage Servers Database 52

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools. I like using Fiddler , and when I inspect the network requests I see that there are indeed some old URLs and redirects floating around.

Cache 94

Cache Social Media Media Website 94

Smashing Magazine

JULY 18, 2022

If anything makes the JavaScript code fail, the paid user won’t have their dose of fun and might get angry. If users have a slow network or a slow computer, they will see an ugly loader while their joke is being downloaded. Or hosting a full-fledged application directly on a Content Delivery Network (CDN)?

Cache 127

Cache Website Servers Energy 127

All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. Adding caching when your app is already experiencing load is not easy.

Speed 95

Speed Cache Latency AWS 95

The Netflix TechBlog

MARCH 5, 2019

the order of the rows on your Netflix home page, issuing content licenses when you click play, finding the Open Connect cache closest to you with the content you requested, and many more). Reliability How can we guarantee that a code change will be safe when rolled out to our production environment?

Infrastructure 185

Infrastructure Cloud Scalability AWS 185

Smashing Magazine

JULY 6, 2021

All functionality and integrations would also have a tight dependency which in turn results in a large, cumbersome monolithic code base. The delivery of static assets in formats such as WebP via a Content Delivery Network (CDN) is also crucial to serving your users a fast website. Look out for: Caching of images and content via CDN.

Cache 145

Cache Website Mobile Google 145

Dean Hume

MAY 16, 2018

If you’ve ever tried to build a web application that is completely offline first, you’ll know how tricky it can be to make changes to the users cache when you do make updates to the site and the user has connectivity. You’ll also learn how to refresh the page, so that the user is up to date and has the latest version of any cached files.

Availability 100

Availability Cache Code Google 100