Brendan Gregg

JULY 4, 2021

This was a chance to talk about other things I've been working on, such as the present and future of hardware performance. The video is on [youtube]: The slides are [here] or as a [PDF]: first prev next last / permalink/zoom I work on many areas of performance, but recently I've had a lot of demand to talk about BPF. Ford, et al., “TCP

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Performance Latency Hardware Storage 52

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. 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).

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Performance Network Mobile Speed 90

Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote 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?

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Performance Latency Cache Virtualization 52

Smashing Magazine

OCTOBER 27, 2021

2021-10-27T10:00:00+00:00. 2021-10-27T10:16:44+00:00. In the late 1990s, marketing and advertising agencies saw the potential of eye-tracking for the Internet and started using the technology to analyze how people consume content online. Eye-Tracking In Mobile UX Research. Eye-Tracking In Mobile UX Research. Mariana Macedo.

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Mobile Website Hardware Social Media 111

Smashing Magazine

APRIL 19, 2021

2021-04-19T08:30:00+00:00. 2021-04-19T08:35:54+00:00. Time to First Byte (TTFB), DOM Content Loaded, Start Render, Speed Index) — but from the experience of the user. not to mention older browsers (Internet Explorer — hurry up and fade out would you!) An In-Depth Guide To Measuring Core Web Vitals.

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Google Metrics Mobile Analytics 140

Smashing Magazine

SEPTEMBER 3, 2021

2021-09-03T11:30:00+00:00. 2021-09-03T15:05:53+00:00. The only time the Internet was mentioned was as a tool for communicating with one another without the need to chop down more trees, or for working without a commute. As a result of this, my view of the Internet for a long time was a little ephemeral, a sort of mirage.

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Website Energy Internet Internet 135

Smashing Magazine

AUGUST 22, 2021

2021-08-23T06:20:00+00:00. 2021-08-23T10:07:21+00:00. 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. A Primer on Speed. The Internet also doesn’t have mechanisms (yet) to signal link capacities back to the endpoints.

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Performance Network Latency Servers 105