O'Reilly

NOVEMBER 28, 2023

Unexpected outcomes, security, safety, fairness and bias, and privacy are the biggest risks for which adopters are testing. That pricing won’t be sustainable, particularly as hardware shortages drive up the cost of building infrastructure. Any attempt at automating customer service needs to be very carefully tested and debugged.

Open Source 106

Open Source Artificial Intelligence Google Infrastructure 106

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. India's speed test medians are moving quickly, but variance is orders-of-magnitude wide, with 5G penetration below 25% in the most populous areas.

Performance 90

Performance Network Mobile Speed 90

Percona

DECEMBER 14, 2022

I was pretty optimistic that I’d truly have impressive numbers to share but as it turns out, while there is a potential for significant advantage, a detailed testing regime of the CITUS columnar store extension should be carried out before implementing them into your own environment. speeds up scans, . The missing sizzle. drill-down.

Database 92

Database Analytics Storage Processing 92

Tasktop

OCTOBER 26, 2021

In software delivery tools, the data of interest exists as objects termed “artifacts”, which are work items like features, stories, tasks, test cases, defects and requirements. They are stored in the tools where the work gets done, like requirements tools, Agile planning tools and testing tools. Infographic: Model based integration.

Hardware 52

Hardware Virtualization Testing Tools Speed 52

Smashing Magazine

SEPTEMBER 3, 2021

It can be hard to visualize the huge network of hardware that allows you to send a request for a page to a server and then receive a response back. According to it, the average page tested “produces 1.76 As with most things, testing is key here. grams of CO2 per page view”. Taking Action. Rendering Is Much Slower on Mobile.

Website 135

Website Energy Internet Internet 135

The Morning Paper

MAY 21, 2019

We focus on a definition that draws from the following two principles: (1) the value of temporal locality, by classifying as cold a memory page that has not been accessed beyond a threshold of T seconds; (2) a proxy for the application effect of far memory, by measuring the rate of accesses to cold memory pages, called promotion rate.

Software 78

Software Software Google Hardware 78

MachMetrics

JULY 27, 2018

If you run a private WebPageTest instance on Amazon EC2, one of the choices you’ll have to make is whether to use Linux or Windows test agents. But last week I switched over to Linux test agents, and I don’t think I’ll ever go back to Windows – here’s why: 1. Linux Agents are more consistent.

Speed 40

Speed Hardware Internet Internet 40

Smashing Magazine

APRIL 19, 2021

Time to First Byte (TTFB), DOM Content Loaded, Start Render, Speed Index) — but from the experience of the user. Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. Cumulative Layout Shift (CLS).

Google 140

Google Metrics Mobile Analytics 140

Smashing Magazine

AUGUST 22, 2021

This explains the challenges involved in deploying and testing HTTP/3 yourself. A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. While a speed boost of one round trip is nice, it’s hardly amazing. Congestion Control.

Performance 106

Performance Network Latency Servers 106

Smashing Magazine

JANUARY 11, 2021

Testing And Monitoring Auditing workflow, proxy browsers, 404 page, GDPR cookie consent prompts, performance diagnostics CSS, accessibility. You can then mimic the 90th percentile’s experience for testing. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!), Quick Wins.

Performance 145

Performance Cache Media Metrics 145

Alex Russell

MARCH 6, 2021

Hardware Past As Performance Prologue. Regardless, the overall story for hardware progress remains grim, particularly when we recall how long device replacement cycles are: Tap for a larger version. Recall that single-core performance most directly translates into speed on the web. Mind The Gap. Tap for a larger version.

Performance 124

Performance Network Cache Metrics 124

All Things Distributed

DECEMBER 20, 2017

Take the example of industrial manufacturing: in prototyping, drafts for technologically complex products are no longer physically produced; rather, their characteristics can be tested in a purely virtual fashion at every location across the globe by using simulations. The German startup SimScale makes use of this trend.

Artificial Intelligence 79

Artificial Intelligence Social Media Logistics AWS 79

Smashing Magazine

JANUARY 6, 2020

Testing And Monitoring. 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. You can then mimic the 90th percentile’s experience for testing. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

CSS - Tricks

AUGUST 18, 2020

Yet, this criticism of React isn’t completely unwarranted: React and ReactDOM total about 120 KiB of minified JavaScript, which definitely contributes to slow startup time. When even a bit of React can be a problem on devices slow and fast alike, using it is an intentional choice that effectively excludes people with low-end hardware.

Performance 101

Performance Mobile Servers Code 101

SQL Server According to Bob

JANUARY 11, 2020

Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Example 1: ​​ Hardware failure (CPU board) Battery backup on the caching controller maintained the data. Important Always consult with your hardware manufacturer for proper stable media strategies.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

JANUARY 7, 2019

Testing And Monitoring. 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. You can then mimic the 90th percentile’s experience for testing. Now you have something measurable to test against.

Performance 104

Performance Cache Network Metrics 104

The Morning Paper

JANUARY 19, 2020

The software and hardware actually embodying the system can’t actually be seen or controlled directly (the argument is a bit like the philosophical one that we can’t directly experience an object except through our senses), instead we experience it through the various interfaces those parts expose to us.

C++ 50

C++ Systems Software Software 50

Alex Russell

OCTOBER 22, 2017

Automating testing against an objective baseline. JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. Thankfully, this is somewhat easier than network speeds: more than half of American mobile users are on Android devices. What’s going on here?

Performance 68

Performance Benchmarking Network Mobile 68

Brendan Gregg

SEPTEMBER 5, 2017

We're now testing container hosts in production on btrfs, instead of ZFS. Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). Details in the appended shortlog. [.].

Virtualization 76

Virtualization AWS Engineering Hardware 76

High Scalability

NOVEMBER 25, 2019

To add elasticity, reliability and durability, these data centers are connected to Google Cloud platform using high speed, secure Google Interconnect network. There are many unique things but the storage layer, event-based sync is definitely worth learning, here are more details on it Egnyte object store and Egnyte Canonical File System.

Architecture 52

Architecture Cache Azure Storage 52