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! Or even on a plane.

Performance 110

Performance Latency Cache Virtualization 110

MachMetrics

JUNE 30, 2020

Using Google Fonts is often one of the first steps people take to give their website a unique look. But if you’ve ever brought over that amazing font and ran a speed test, you might be asking – “Does Google Fonts slow down my site?” Use that awesome font from Google and live with the performance hit.

Google 57

Google Speed Cache Website 57

Smashing Magazine

AUGUST 3, 2023

How We Optimized Performance To Serve A Global Audience How We Optimized Performance To Serve A Global Audience Liran Cohen 2023-08-03T10:00:00+00:00 2023-08-03T13:06:00+00:00 I work for Bookaway , a digital travel brand. Large preview ) We’ve known for a long time that fast page performance influences search engine rankings.

Performance 74

Performance Cache Traffic Metrics 74

MachMetrics

JUNE 1, 2020

In fact, failing to run a mobile page speed test is the number 1 speed testing mistake we see our users make! If you’re unsure of how your website performs on a mobile device (or even got a poor result on a speed audit), stick with us. All of these things can be achieved with a faster mobile speed.

Speed 67

Speed Mobile Testing Google 67

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

SEPTEMBER 28, 2022

Five Data-Loading Patterns To Improve Frontend Performance. Five Data-Loading Patterns To Improve Frontend Performance. When it comes to performance, you shouldn’t be stingy. There are millions of sites, and you are in close competition with every one of those Google search query results. Active Memory Caching.

Cache 126

Cache Performance Servers Social Media 126

Smashing Magazine

AUGUST 9, 2022

Core Web Vitals Tools To Boost Your Web Performance Scores. Core Web Vitals Tools To Boost Your Web Performance Scores. Essentially, a web vital is a quality standard for UX and web performance set by Google. Essentially, a web vital is a quality standard for UX and web performance set by Google.

Performance 130

Performance Benchmarking Website Metrics 130

Smashing Magazine

JUNE 26, 2019

What Web Designers Can Do To Speed Up Mobile Websites. What Web Designers Can Do To Speed Up Mobile Websites. I recently wrote a blog post for a web designer client about page speed and why it matters. What I didn’t know before writing it was that her agency was struggling to optimize their mobile websites for speed.

Website 110

Website Speed Mobile Design 110

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. This is not a post explaining why web performance is important.

Performance 237

Performance Speed Google Media 237

Smashing Magazine

OCTOBER 29, 2019

Speed Up Your Website With WebP. Speed Up Your Website With WebP. Spend enough time running websites through PageSpeed Insights and you’ll notice that Google has a major beef with traditional image formats like JPG, PNG and even GIF. Google developed WebP back in 2010 after acquiring a company called On2 Technologies.

Website 72

Website Speed Cache Google 72

MachMetrics

FEBRUARY 10, 2020

But what about our web font’s performance? Unfortunately, there is typically much less thought put into the performance cost of using the amazing third-party font you downloaded. Considering web font performance is something that should become a habit of yours. Use it wherever possible for the best performance.

Speed 65

Speed Performance Google Open Source 65

Smashing Magazine

AUGUST 30, 2021

Refactoring CSS: Optimizing Size And Performance (Part 3). Refactoring CSS: Optimizing Size And Performance (Part 3). Deploying the refactored codebase shouldn’t result in worse website performance and worse user experience. Part 3: Optimizing Size And Performance. Adrian Bece. 2021-08-30T10:00:00+00:00. More after jump!

Media 109

Media Performance Cache Strategy 109

Smashing Magazine

JUNE 2, 2021

Improving The Performance Of An Online Store (Case Study). Improving The Performance Of An Online Store (Case Study). Every front-end developer is chasing the same holy grail of performance: green scores in Google Page Speed. Jennifer Brehm. 2021-06-02T10:30:00+00:00. 2021-06-02T13:32:39+00:00. Large preview ).

Performance 116

Performance Cache Website Mobile 116

Dynatrace

SEPTEMBER 13, 2023

The framework comprises six pillars: Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization, and Sustainability. And how can you verify this performance consistently across a multicloud environment that also uses Microsoft Azure and Google Cloud Platform frameworks?

AWS 252

AWS Efficiency Azure Cloud 252

CSS - Tricks

JULY 25, 2019

This article is from my friend Ben who runs Calibre , a tool for monitoring the performance of websites. In this article, we uncover how PageSpeed calculates it’s critical speed score. It’s no secret that speed has become a crucial factor in increasing revenue and lowering abandonment rates. Cache-Headers missing?

Google 71

Google Engineering Speed Mobile 71

MachMetrics

JANUARY 23, 2020

You run a speed test on a website, and the results don’t match what you personally experience. Perhaps you feel like your site loads fairly quickly, but the speed test results are sub-optimal. It’s one of the most common (and frustrating) scenarios in web performance testing. Don’t stress over a score.

Speed 62

Speed Testing Website Cache 62

MachMetrics

JUNE 30, 2021

Website performance & speed plays a major role in the success of an online business. High-performing fast sites attract and preserve users better than low-performing ones. The screenshot below explains that page load time and lighthouse performance scores are not the same, yet they are really close to each other.

Cache 78

Cache Speed Google Website 78

MachMetrics

JULY 15, 2020

However, if utilized carelessly, CSS can greatly affect our page speed. That’s good to know, but I know you’re looking for a css speed test, or techniques for optimizing your css for speed. Perform an Audit of Your Site. This is another reason why page speed scores can be misleading. Reduce Your CSS.

Speed 78

Speed Website Cache Google 78

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

Speed Curve

DECEMBER 13, 2023

So I thought it would be fun to spend some time poking around behind the scenes and give the site a holiday performance audit. Background For this performance audit, I looked at this synthetic test for the LEGO.com home page. (We According to Google's thresholds, an LCP time of 3.96 seconds, LCP lags at 3.96

Performance 66

Performance Retail Benchmarking Ecommerce 66

Speed Curve

APRIL 9, 2023

There is a lot of excitement in the world of web performance these days, and April has been no exception! According to Google: “We expect this to improve most pages' performance scores, since most pages tend to score better on CLS than TTI. Basically, we see a trend similar to the trend observed by Google.

Cache 73

Cache Best Practices Metrics Google 73

Smashing Magazine

DECEMBER 23, 2020

It doesn’t come as a surprise, considering the benefits of higher conversion rates, customer engagement, decreased page loading speed, and lower costs on development and overhead. The service workers enable the offline usage of the PWA by fetching cached data or informing the user about the absence of an Internet connection.

Cache 124

Cache Internet Internet Google 124

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

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

Speed Curve

FEBRUARY 5, 2024

That performance golden rule still holds true today. Google recommends that TTFB be 800ms at the 75th percentile. Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. In the case of a cache miss, this should be zero.)

Servers 57

Servers Cache Retail Benchmarking 57

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. Poor performance has a compound effect on user expectations at an ecosystem level. Live by the link, die by the link.

Performance 124

Performance Network Cache Metrics 124

Dotcom-Montior

AUGUST 5, 2020

Page speed has been a key factor in Google’s ranking algorithm since 2010 , so it is essential to understand the various ways you can optimize your pages and why implementing synthetic monitoring can ensure your pages perform flawlessly and revenue isn’t lost. Find Your Performance Baseline. Optimize Your Pages.

Website 92

Website Speed Cache Traffic 92

Dynatrace

AUGUST 30, 2019

Digital Performance: 99% reduction in Response Time, from 18.2s Dynatrace Real User Monitoring (RUM) captures very detailed user behavior, as well as experience and performance information, about every user on your applications. Here are two I would start with: Web Performance Optimization with Dynatrace.

Cache 201

Cache Architecture Database Government 201

ACM Sigarch

DECEMBER 19, 2022

When I worked at Google, fleet-wide profiling revealed that 25-35% of all CPU time was spent just moving bytes around: memcpy, strcmp, copying between user and kernel buffers in network and disk I/O, hidden copy-on-write in soft page faults, checksumming, compressing, decrypting, assembling/disassembling packets and HTML pages, etc.

Design 145

Design Systems Cache Network 145

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

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. As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is.

Best Practices 105

Best Practices Speed Mobile Google 105

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 104

Performance Cache Network Metrics 104

KeyCDN

JULY 11, 2019

Image Optimization Importance We have been talking a lot about website optimization lately and have interviewed many web performance experts to get their recommendations and advice. Here are just a few of their responses: A big focus for our performance team is (and will continue to be) optimizing images. You guessed it, images.

Speed 52

Speed Website Mobile Latency 52

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). A Primer on Speed. Robin Marx.

Performance 106

Performance Network Latency Servers 106

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

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

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates.

Cache 92

Cache Social Media Media Network 92