Brendan Gregg

FEBRUARY 28, 2023

At USENIX SREcon22 APAC I gave the opening keynote on the future of computer performance, rounding up the latest developments and making predictions of where I see things heading. This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person!

Performance 52

Performance Latency Cache Virtualization 52

Jos

APRIL 6, 2018

It turns out this component structure provides a great foundation to improve the performance of our sites. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. The article will be using Preact/React, yet the ideas can be applied to any other component library.

Code 147

Code Performance Media Google 147

Jos

APRIL 5, 2018

It turns out this component structure provides a great foundation to improve the performance of our sites. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. The article will be using Preact/React, yet the ideas can be applied to any other component library.

Code 130

Code Performance Google Media 130

Speed Curve

FEBRUARY 5, 2024

That performance golden rule still holds true today. Google recommends that TTFB be 800ms at the 75th percentile. Charlie Vazac introduced server timing in a Performance Calendar post circa 2018. Caching the base page/HTML is common, and it should have a positive impact on backend times.

Servers 57

Servers Cache Retail Benchmarking 57

Dotcom-Montior

MARCH 27, 2022

If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. If you run ads from Google Adsense, or any other blocked companies, along with banned advertisements in China, they won’t appear on your page and your websites or applications may also face access restrictions. Blocking IP Access.

Website 82

Website Internet Internet Performance 82

Jos

JUNE 2, 2018

Web Performance is not only about understanding what makes a site fast. Performance is a feature and needs to be prioritized as such. Performance is a topic that has interested me for a long time. Moving over to web, the performance problems are different. These days we have more and better tools to audit our performance.

Performance 130

Performance Speed Google Media 130

KeyCDN

SEPTEMBER 3, 2020

How to measure performance The Website Speed Test is the ideal tool for measuring the performance of your website. It offers a full range of performance grades and suggestions where we outline the performance potential in detail. Further down, there are detailed performance grades for various topics.

Processing 127

Processing Cache Website Servers 127

CSS - Tricks

OCTOBER 26, 2020

I still think the Google-devised Core Web Vitals are smart. When I first got into caring about performance, it was all: reduce requests! cache things! And while those are all very related to web performance, they are abstractly related. Performance tooling like Calibre covers them. Make stuff smaller!

Cache 96

Cache Metrics Google Performance Testing 96

Dotcom-Montior

JUNE 25, 2020

If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. If you run ads from Google Adsense, or any other blocked companies, along with banned advertisements in China, they won’t appear on your page and your websites or applications may also face access restrictions. Blocking IP Access.

Website 97

Website Internet Internet Performance 97

Smashing Magazine

MARCH 19, 2021

Ironically, at the moment of publishing that article in late February, we still had floating labels used in most of our forms, and we wanted to explore if removing them would actually help us improve the overall experience on the site. Working around improving performance was an ongoing journey on SmashingMag for a while.

Mobile 140

Mobile Design Cache Code 140

MachMetrics

DECEMBER 14, 2019

With another year winding down, it’s time for us to take stock of how our site performance compares to the average page load times for 2020. Similar to our article Average Page Load Times for 2018 , we’ll go over the averages for metrics and help you determine if your site is faster or slower than average.

Best Practices 105

Best Practices Speed Mobile Google 105

KeyCDN

DECEMBER 8, 2022

Unoptimized content could also be one of the reasons why your WordPress website is not performing as per your expectations. Unfortunately, it is a bit difficult to point out the problem directly– there are many possibilities that we will explore in this article. But what steps could we take to determine the cause of the problem?

Cache 52

Cache Website Speed Website Performance 52

MachMetrics

DECEMBER 27, 2019

Offering 20 chapters with insights into Page Content, User Experience, Content Publishing, and Content Distribution, it can also be overwhelming, so we’ll be summarizing the web performance section in an easy-to-understand manner. We’ll be diving into Chapter 7 – Performance. 20% of sites are considered slow.

Performance 52

Performance Speed Website Mobile 52

KeyCDN

SEPTEMBER 12, 2019

We normally focus solely on the performance aspect, but today we want to dive into additional ways you can optimize images for the web. The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better.

Social Media 106

Social Media Media Google Website 106

Smashing Magazine

JANUARY 15, 2019

How Improving Website Performance Can Help Save The Planet. How Improving Website Performance Can Help Save The Planet. Partly as a result of this campaign, Google announced last year that for the first time it had purchased enough renewable energy to match 100% of its global consumption for operations. Jack Lenox.

Website Performance 73

Website Performance Website Energy Performance 73

Smashing Magazine

MAY 12, 2022

How To Use Google CrUX To Analyze And Compare The Performance Of JS Frameworks. How To Use Google CrUX To Analyze And Compare The Performance Of JS Frameworks. Recently Noam Rosenthal published two articles analyzing the common benefits and capabilities provided by various frameworks , and also their associated costs.

Google 128

Google Performance Website Mobile 128

Dotcom-Montior

JUNE 25, 2021

If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. If you run ads from Google Adsense, or any other blocked companies, along with banned advertisements in China, they won’t appear on your page and your websites or applications may also face access restrictions. Blocking IP Access.

Website 52

Website Internet Internet Performance 52

Dotcom-Montior

APRIL 27, 2021

If the DNS caches are manipulated to contain wrong IP addresses, it’s called DNS poisoning. If you run ads from Google Adsense, or any other blocked companies, along with banned advertisements in China, they won’t appear on your page and your websites or applications may also face access restrictions. Blocking IP Access.

Website 52

Website Internet Internet Performance 52

CSS - Tricks

FEBRUARY 18, 2019

The page encourages you to hotlink the script, which means possible cache-hits in case you've already visited a page using this. Direct Link to Article — Permalink The post instant.page appeared first on CSS-Tricks. It's hardly any code. , You could argue that it doesn't do the prefetching as absolutely responsibly as it could.

Cache 111

Cache Google Code Performance 111

Smashing Magazine

SEPTEMBER 20, 2021

If you are just starting out wondering if someone might be re-publishing your web content, the easiest thing to do is a Google search. Copy a ten or twelve-word sentence from a page of interest on your site into the Google search bar, put it inside double-quotes, and click on Search. Search Engine And Web Archive Cached Results.

Website 89

Website Analytics Google Cache 89

Dean Hume

MAY 16, 2018

If you’ve ever tried to build a web application that is completely offline first, you’ll know how tricky it can be to make changes to the users cache when you do make updates to the site and the user has connectivity. You’ll also learn how to refresh the page, so that the user is up to date and has the latest version of any cached files.

Availability 100

Availability Cache Code Google 100

Smashing Magazine

MAY 25, 2021

Font loading has long been a bugbear of web performance, and there really are no good choices here. A number of sites moved to font-display: swap when this first came out, and Google Fonts even made it the default in 2019. It’s also trickier to handle cached fonts we already have, not to mention differences in various fallback styles.

Operating System 143

Operating System Google Website Cache 143

CSS - Tricks

NOVEMBER 17, 2020

Chris made a few notes about Core Web Vitals the other day, explaining why measuring these performance metrics are so gosh darn important: I still think the Google-devised Core Web Vitals are smart. When I first got into caring about performance, it was all: reduce requests! cache things! Make stuff smaller!

Google 69

Google Metrics Speed Cache 69

MachMetrics

JANUARY 16, 2020

Optimizing your images is often the very first suggestion that any performance writer or consultant will make when it comes to optimizing a website. However, what do you do when you optimize your images and still don’t see a noticeable improvement in the performance of your site? We’re no exception.

Speed 89

Speed Website Metrics Cache 89

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. Without effective caching on the client, the server will see an increase in workload, more CPU usage and ultimately increased latency for the end user. They allow you to cache resources on the user's device when they visit your site for the first time.

Energy 40

Energy Cache Traffic Website 40

MachMetrics

AUGUST 15, 2020

Some of our most recent articles detailed how to keep track of the impact that Google Fonts , Page Weight , and CSS files have on your website performance. Google Fonts being loaded on a page that doesn’t use them? We have a ton of articles to help you optimize any part of your site.

Website 67

Website Monitoring Google Mobile 67

Tim Kadlec

OCTOBER 8, 2015

The AMP Project is an open source initiative to improve performance and distribution on the mobile web. That’s a very fancy way of saying that they aim to do for the web what Facebook Instant Articles does for…well…Facebook. You can build your sites to be prerender and cache friendly. You also use the AMP JavaScript library.

Cache 75

Cache Google Mobile Open Source 75

Smashing Magazine

NOVEMBER 2, 2021

Hence, they can’t be promoted separately or found by users who’ve input a search query in Google. As shown on the screenshots below, the product page of the store can be found via Google. PWAs don’t require installation from the App Store or Google Play to the device to be used (like native apps do). You need a site for that.

Code 74

Code Cache Retail Mobile 74

MachMetrics

JULY 31, 2020

So in this article, we’ll pit Gzip vs Brotli and completely end the debate! As we discussed in our article on how to test your page weight , compression is pretty much standard practice in web performance now, so you absolutely want to make sure you’re taking advantage of it. One such measure is HTTP compression. OK, not really.

Speed 67

Speed Servers Google Tuning 67

Smashing Magazine

APRIL 11, 2022

Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. Of all those options, it’s safe to assume that text is the best choice for LCP performance because it loads and renders fast.

Media 70

Media Tuning Metrics Google 70

Brendan Gregg

MARCH 16, 2024

I'm sure this delivered large performance improvements and I wouldn't try arguing against it. Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway.

Java 145

Java Cache Google Hardware 145

Dean Hume

MAY 16, 2018

If you’ve ever tried to build a web application that is completely offline first, you’ll know how tricky it can be to make changes to the users cache when you do make updates to the site and the user has connectivity. You’ll also learn how to refresh the page, so that the user is up to date and has the latest version of any cached files.

Availability 40

Availability Cache Code Google 40

Dean Hume

MAY 16, 2018

If you’ve ever tried to build a web application that is completely offline first, you’ll know how tricky it can be to make changes to the users cache when you do make updates to the site and the user has connectivity. You’ll also learn how to refresh the page, so that the user is up to date and has the latest version of any cached files.

Availability 40

Availability Cache Code Google 40

Smashing Magazine

FEBRUARY 27, 2024

With performance at the forefront of my mind, I decided to head over to MDN for a fresh look at the Performance API. The Performance API is huge in that it contains a lot of different interfaces, properties, and methods. The element performance metric type doesn’t work with the performance.getEntries() method anyway.

Performance 96

Performance Metrics Monitoring Google 96

Smashing Magazine

AUGUST 30, 2021

Refactoring CSS: Optimizing Size And Performance (Part 3). Refactoring CSS: Optimizing Size And Performance (Part 3). In previous articles from this series, we’ve covered auditing CSS codebase health and the incremental CSS refactoring strategy , testing, and maintenance. Part 3: Optimizing Size And Performance.

Media 109

Media Performance Cache Strategy 109