Brendan Gregg

JULY 4, 2021

youtube]: [link] [PDF]: /Slides/LISA2021_ComputingPerformance.pdf [Systems Performance 2nd Edition]: /systems-performance-2nd-edition-book.html [BPF Internals]: /blog/2021-06-15/bpf-internals.html [xlideshare]: [link] [write about]: /blog/2021-07-03/how-to-add-bpf-observability.html [here]: /Slides/LISA2021_ComputingPerformance

Performance 52

Performance Latency Hardware Storage 52

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). Next-generation video codecs, supported in many modern chips, but also a licensing minefield. Fundamentally enabling for video creation apps.

Media 145

Media Games Education Engineering 145

Smashing Magazine

JANUARY 11, 2021

Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Media Metrics 145

Dotcom-Montior

MARCH 6, 2022

Users can also watch the actual URL loading video in the browser window. It’s important to mention that within the Dotcom Monitor platform there is a feature that a user can watch the actual URL loading video in the browser window (shown below). Do You Need a CDN? Try the full Dotcom-Monitor platform free for 30-days.

Performance 52

Performance Cache Website Speed 52

Dotcom-Montior

MAY 6, 2020

Users can also watch the actual URL loading video in the browser window. Browser (Chrome, Firefox, Internet Explorer, mobile browsers etc…). It’s important to mention that within the Dotcom Monitor platform there is a feature that a user can watch the actual URL loading video in the browser window (shown below).

Performance 53

Performance Cache Website Speed 53

Brendan Gregg

SEPTEMBER 5, 2017

You might also like my [Give me 15 minutes and I'll change your view of Linux tracing] video as an introduction to the different built-in Linux tracers. Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. Hit Ctrl-C to end. ^C

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

AUGUST 20, 2021

Fast-forward 30 years, and website technology has changed significantly — we have images, stylesheets, JavaScript, streaming video, AJAX, animation, WebSockets, WebGL, rounded corners in CSS — the list goes on. In the 2000s we had a showdown of two popular blog publishing platforms — MovableType in 2001 and WordPress in 2003.

Ecommerce 140

Ecommerce Website Government Internet 140

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

Smashing Magazine

AUGUST 9, 2021

You may have read some blog posts or heard conference talks on this topic and think you know the answers. It’s also one of the reasons we can keep using the Internet with many concurrent users, because it smartly limits each user’s bandwidth usage to their fair share. Robin Marx. 2021-08-09T11:00:00+00:00. 2021-08-09T15:05:19+00:00.

Transportation 145

Transportation Internet Internet Network 145

All Things Distributed

DECEMBER 12, 2013

Moreover, a GSI''s performance is designed to meet DynamoDB''s single digit millisecond latency - you can add items to a Users table for a gaming app with tens of millions of users with UserId as the primary key, but retrieve them based on their home city, with no reduction in query performance.

Games 130

Games Scalability Database Retail 130