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

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. What is Multi-CDN?A Multi-CDN is the practice of employing a number of CDN providers simultaneously.

Best Practices 40

Best Practices Strategy Traffic Virtualization 40

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Smashing Magazine

AUGUST 15, 2023

Large preview ) While browsers are generally pretty fast, these steps still take time to load, typically in seconds, and even longer on slower, high-latency network connections. So noticeable, in fact, that Core Web Vitals has a metric all about it called Largest Contentful Paint (LCP). Let’s use that instead of a standard JPG.

Media 73

Media Metrics Mobile Best Practices 73

CSS Wizardry

OCTOBER 27, 2018

The short answers are, of course ‘all the time’ and ‘everyone’, but this mutual disownership is a common reason why performance often gets overlooked. Of course, it is impossible to fix (or even find) every performance issue during the development phase. Do changes in performance correlate to changes in business metrics?

Performance Testing 172

Performance Testing Testing Performance Strategy 172

Dotcom-Montior

MAY 12, 2020

They now allow users to interact more with the company in the form of online forms, shopping carts, Content Management Systems (CMS), online courses, etc. Network or connection error. There are certain metrics to be considered for a user to have a hassle-free experience. Network latency. Network Latency.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

The Morning Paper

FEBRUARY 6, 2020

Oh, and there’s a scheduler too of course to keep all the plates spinning. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access. A low-latency autoscaling KVS can serve as both global storage and a DHT-like overlay network.

Lambda 98

Lambda Serverless Cache Latency 98

Dotcom-Montior

NOVEMBER 16, 2021

Since that time, the SRE role has evolved as the industry has changed and shifted from the traditional monolithic structures to large, widely distributed networks and microservices. SLIs are the actual performance metrics of your services. Latency is the amount of time, or delay, a service takes to respond to a request.

Monitoring 91

Monitoring Google DevOps Engineering 91

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

Highly Scalable

SEPTEMBER 18, 2012

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. Isolated parts of the database can serve read/write requests in case of network partition. Read/Write latency. Data Placement.

Database 213

Database Latency C++ Scalability 213

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

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. Having a slow site might leave you on page 452 of search results, regardless of any other metric. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools. Improvement #2: The Critical Render Path.

Cache 92

Cache Social Media Media Website 92

The Morning Paper

SEPTEMBER 5, 2019

Datadog handles a ton of metrics – some customers have endpoints generating over 10M points per second! 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 Why do we need a new sketch?

Latency 52

Latency Metrics Open Source Java 52

The Morning Paper

FEBRUARY 23, 2020

There are five different types of member in an AnyLog system, and any network node can join without restriction as any type of member. Publishers are the producers of the actual data to be served by the network. Given their position of power in the network, such caching seems to be highly incentivised in the absence of such mechanisms.

Blockchain 94

Blockchain Internet Internet IoT 94

Smashing Magazine

JANUARY 7, 2019

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 on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Table Of Contents. Setting Realistic Goals. Defining The Environment.

Performance 103

Performance Cache Metrics Network 103

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. This helps support executive sponsors who then have meaningful metrics to point to in justifying the investments being made. Partner meetings are illuminating.

Performance 68

Performance Benchmarking Network Mobile 68

Dotcom-Montior

DECEMBER 8, 2021

We are kidding of course, but you know something is bad if happens that early in the morning. Knowing when and where an error, downtime, or application latency occurs is a critical factor in limiting the impact to users and customers. Nothing good happens at 2:00 a.m., especially when we are talking about the IT industry.

Social Media 90

Social Media Monitoring Latency DevOps 90

The Morning Paper

MAY 28, 2019

So it’s interesting to see a paper using nano-Joules per prediction as an evaluation metric. 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. So decision trees are essentially networks of threshold functions. Introducing race logic.

Energy 52

Energy Hardware Efficiency Architecture 52

The Morning Paper

JANUARY 12, 2020

Another approach is to add a safety layer to the network which prevents any safety violations. some kind of windowing), and modelling history in the model using recurrent networks. Another great insight here (which reminds me of discussions of system latency) is that ‘average’ performance (i.e., Kant would approve.

Programming 43

Programming Systems Efficiency Network 43

Alex Russell

JUNE 20, 2020

full TCP/IP & UDP networking, including local network discovery. Java arrived with a focus on structured programming (including threads), GUI controls , networking, device access, and graphics. The a secondary benefit to adjacency is that it provides time to learn and course-correct. high-color image raster.

Hardware 55

Hardware Games Java Media 55

Alex Russell

JULY 14, 2021

This reduces friction and commensurately increases "engagement" metrics. [6]. Because they lean on the system-provided WebView component, they do not need to pay the expense of a heavier app download to support rendering HTML, running JavaScript, decoding images, or loading network resources. But that's no reason to delay.

Google 121

Google Mobile Engineering Internet 121

Alex Russell

APRIL 29, 2021

Another window into this question is provided by the Web Confluence Metrics project. Real-time network protocols for enabling videoconferencing, desktop sharing, and game streaming applications. Modern, asynchronous network APIs that dramatically improve performance in some situations. Converging Views. Delayed five years.

Media 145

Media Games Education Engineering 145

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. Computation of more advanced metrics like a number of unique visitor or most frequent items is more challenging and requires a lot of resources if implemented straightforwardly. Heavy Hitters: Stream-Summary.

Analytics 191

Analytics Traffic Big Data Efficiency 191

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. At Netflix the term “performance” usually encompasses both performance metrics (in the strict meaning) and memory metrics, and that’s how we’re using the term here. What do we mean by Performance?

Performance 199

Performance Metrics Performance Testing Testing 199

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 143

Metrics Strategy Efficiency Testing 143

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 140

Metrics Strategy Efficiency Testing 140

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 130

Metrics Strategy Efficiency Testing 130

Smashing Magazine

AUGUST 22, 2021

As we will see, QUIC and HTTP/3 indeed have great web performance potential, but mainly for users on slow networks. If your average visitor is on a fast cabled or cellular network, they probably won’t benefit from the new protocols all that much. Two-way latency is often called round-trip time (RTT). Congestion Control.

Performance 105

Performance Network Latency Servers 105

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”. and lower), this typically takes two network round trips.

Transportation 145

Transportation Internet Internet Network 145

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)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. Network Configuration.

Network 104

Network Servers Cache Traffic 104

Smashing Magazine

SEPTEMBER 29, 2021

Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page. Compression achieved is relevant because the higher the compression, the smaller the file size, and the lower the data required to transfer the image on the network. DRM-free, of course. Print + eBook. Print + eBook. $.

Open Source 144

Open Source Speed Website Google 144