Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Tim Kadlec

JUNE 24, 2014

At Google I/O 2014 , Lara Swanson and Paul Lewis discussed performance culture. Since it’s one of my favorite topics, I decided to share my notes: 34% of US adults use a smartphone as their primary means of internet access. Mobile networks add a tremendous amount of latency. We are not our end users.

Google 49

Google Performance Latency Internet 49

MachMetrics

JUNE 16, 2020

In a vacuum, an SSL certificate does add some additional latency, as it requires 2 extra round trips to establish a secure connection before sending any data to the browser. Secondly, SSL/HTTPS unlocks additional web performance benefits that more than make up for the added latency. Source: Google Blog.

Speed 86

Speed Latency Google Website 86

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

JULY 4, 2021

## References I've reproduced the talk references below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency? Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Testsigma

DECEMBER 12, 2020

Since the beginning of the internet era, browsers and websites have lived co-dependently. Starting from the internet explorer, then to the Mozilla project and now to at least six major browsers in the market, we have evolved quite well. Today, you will hardly find anyone using Google Chrome 60. Now comes the testing part.

Testing 53

Testing Operating System Website Latency 53

Testsigma

JANUARY 30, 2021

With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. For example, if you are using internet banking via a Mobile Web application, it will not allow you to save cards or mark any transaction as favourite. What are Mobile Web Applications?

Mobile 52

Mobile Testing Website Internet 52

CSS - Tricks

MARCH 16, 2020

to run Google Lighthouse audits via the command line, save the reports they generate in JSON format and then compare them so web performance can be monitored as the website grows and develops. I’m hopeful this can serve as a good introduction for any developer interested in learning about how to work with Google Lighthouse programmatically.

Google 82

Google Latency Website Metrics 82

High Scalability

DECEMBER 21, 2018

Tim Bray : How to talk about [Serverless Latency] · To start with, don’t just say “I need 120ms.” Don't miss all that the Internet has to say on Scalability, click below and become eventually consistent with all scalability knowledge (which means this post has many more items to read so please keep on reading).

Internet 137

Internet Internet Scalability Serverless 137

High Scalability

JULY 20, 2018

A typical example of modern "microservices-inspired" Java application would function along these lines: Netflix : We observed during experimentation that RAM random read latencies were rarely higher than 1 microsecond whereas typical SSD random read speeds are between 100–500 microseconds. There are a few more quotes.

Internet 121

Internet Internet Scalability Automotive 121

Smashing Magazine

OCTOBER 31, 2023

Why do we need Lighthouse at all when Google also offers similar reports in PageSpeed Insights (PSI)? CrUX data is important because it is how web core vitals are measured, which, in turn, are a ranking factor for Google’s search results. Still, there’s nothing in there to tell us about the data Lighthouse is using to evaluate metrics.

Speed 97

Speed Google Website Metrics 97

Tim Kadlec

SEPTEMBER 25, 2014

This is notable because we’re seeing companies such as Mozilla and Google targeting emerging markets with affordable, low-powered devices that otherwise run modern browsers. Those markets are going to dominate internet growth over the next few years, and affordability is a more necessary feature than a souped up device.

Latency 41

Latency Google Hardware Servers 41

Alex Russell

JULY 14, 2021

Google's Search App and Facebook's various apps for Android undermine these choices in slightly different ways. [3] Developers also suffer higher costs and reduced opportunities to escape Google, Facebook, and Apple's walled gardens. Samsung Internet set as the default browser and loads web pages from links in the app.

Google 121

Google Mobile Engineering Internet 121

Smashing Magazine

AUGUST 22, 2021

This is because HTTP/3 and QUIC mainly help deal with the somewhat uncommon yet potentially high-impact problems that can arise on today’s Internet. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 106

Performance Network Latency Servers 106

Alex Russell

JANUARY 30, 2024

Many critiques are possible, both of the target (five seconds for first load), the sample population (worldwide internet users), and of the methodology (informed reckons). decoding="async" loading="lazy" /> Google spent more on the SoC for the Pixel 4a and enjoyed a later launch date, boosting performance relative to the A51.

Performance 90

Performance Network Mobile Speed 90

Scalegrid

JANUARY 12, 2024

Examples include associations with Google Docs, Facebook chat group interactions, streaming live forex market feeds, and managing trading notices. The fundamental principles at play include evenly distributing the workload among servers for better application performance and redirecting client requests to nearby servers to reduce latency.

Cloud 130

Cloud Virtualization Storage Efficiency 130

High Scalability

JANUARY 24, 2019

The most famous of these companies—the so-called faangs, of Facebook, Apple, Amazon, Netflix, and Google—have seen their price-earnings ratios collapse by more than 60 percent in the past two years. Rob Pike (1984) : A collection of impressions after doing a week’s work (rather than demo reception) at PARC.

Internet 29

Internet Internet Scalability Games 29

High Scalability

SEPTEMBER 14, 2018

72 : signals sensed from a distant galaxy using AI; 12M : reddit posts per month; 10 trillion : per day Google generated test inputs with 100s of servers for several months using OSS-Fuzz; 200% : growth in Cloud Native technologies used in production; $13 trillion : potential economic impact of AI by 2030; 1.8 They'll love you even more.

Internet 30

Internet Internet Scalability Education 30

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”. However, it is extremely challenging to actually deploy them at Internet scale.

Transportation 145

Transportation Internet Internet Network 145

Alex Russell

APRIL 29, 2021

In almost every area, Apple's low-quality implementation of features WebKit already supports requires workarounds not necessary for Firefox (Gecko) or Chrome/Edge/Brave/Samsung Internet (Blink). It's possible that Amazon Luna , NVIDIA GeForce Go , Google Stadia , and Microsoft xCloud could have been built years earlier. Trusted Types.

Media 145

Media Games Education Engineering 145

KeyCDN

JULY 11, 2019

Using an image CDN, such as KeyCDN, can significantly reduce the latency of your image delivery. As Sara Souedan said, not everyone has access to fast internet. Mbps, countries with a growing Internet users like India is only at an average mobile download speed of 6.8 Google loves speed. Mbps ( Opensignal ).

Speed 52

Speed Website Mobile Latency 52

Testsigma

FEBRUARY 12, 2021

The Internet of Things is generally referred to as IoT which encompasses computers, cars, houses or some other technological system related. million Google Play Store applications, followed by 1.96 By 2025, the person who orders the product will first be the person who touches it. IoT Test Automation.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Smashing Magazine

JANUARY 11, 2021

Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Run performance experiments and measure outcomes — both on mobile and on desktop (for example, with Google Analytics ). Adjust the argument depending on the group of stakeholders you are speaking to.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Run performance experiments and measure outcomes — both on mobile and on desktop (for example, with Google Analytics ). Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Adjust the argument depending on the group of stakeholders you are speaking to.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. In 2015, Google introduced Brotli , a new open-source lossless data format, which is now supported in all modern browsers. Unless you can use Google Fonts with Cloudflare Workers , of course. Assets Optimizations.

Performance 104

Performance Cache Metrics Network 104