Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 52

Performance Latency Hardware Storage 52

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

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

Smashing Magazine

JUNE 3, 2022

Measuring The Performance Of Typefaces For Users (Part 1). Measuring The Performance Of Typefaces For Users (Part 1). How well does a typeface work and perform against another similar typeface? Reasons To Measure The Performance Of Typefaces? Measuring Typefaces And The Resulting Performance Data. Thomas Bohm.

Performance 110

Performance Design Best Practices Testing 110

Speed Curve

JUNE 10, 2015

At Velocity 2015 in Santa Clara, Bruce Lawson described the dramatic growth of connected users in Asia and Africa, while highlighting the challenge faced when trying to deliver great experiences to a broad range of devices. Here’s Kadlec’s related talk from Velocity 2014 in New York: The path to performance.

Metrics 40

Metrics Design DevOps Website 40

Rigor

SEPTEMBER 11, 2019

Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. Rachel Andrew.

Performance 89

Performance Education Google Website 89

Brendan Gregg

MAY 8, 2021

People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. I recently encountered terrible disk performance and thought it'd be useful to collect Linux tool screenshots and share them for reference. I could hear it spin faster.

Performance 40

Performance Latency Speed Systems 40

KeyCDN

NOVEMBER 19, 2020

In October 2015 KeyCDN released a free WordPress caching plugin called Cache Enabler. This plugin was initially released as a lightweight caching plugin that was able to speed up WordPress websites by generating static HTML files that could then be minified and even converted for WebP support.

Cache 116

Cache Network Open Source Speed 116

MachMetrics

JULY 31, 2020

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. In 2015, they released a version to be used for HTTP compression.

Speed 67

Speed Servers Google Tuning 67

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

Speed Curve

NOVEMBER 3, 2019

” Tammy, Steve and Cliff at Velocity Conference circa 2015. As a veteran in the performance industry, I’ve spent a large part of my career helping to build performance culture. Building performance culture across the organization. What am I most excited about? Building a more inclusive web.

Education 47

Education Latency Strategy Speed 47

Strategic Tech

FEBRUARY 27, 2021

The speed at which new features got implemented, and importantly delivered to production for customers to benefit from, was as fast as humanly possible. Every step in a developer’s journey is an opportunity to improve their experience and improve the performance of the organization. As a developer, this is exactly what I want.

Development 98

Development Strategy Infrastructure Metrics 98

CSS - Tricks

JANUARY 31, 2020

In 2015, HTTP/2 became a published standard in an effort to update an aging protocol. This was was both necessary and overdue, as HTTP/1 rendered web performance as an arcane sort of discipline in the form of strange workarounds of its limitations. From 2016 (PDF warning) to 2019 , the average mobile download speed in the U.S.

Innovation 50

Innovation Mobile Best Practices Speed 50

MachMetrics

OCTOBER 16, 2019

Elon Musk’s need for speed. However, there is excitement around Starlink for other reasons – namely, the implications it might have for internet speed and latency – even by just a small amount (20 milliseconds on average). This ultimately guides us to one conclusion: Speed is incredibly important.

Internet 44

Internet Internet Latency Speed 44

Alex Podelko

SEPTEMBER 8, 2020

Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. How did you get into performance engineering? At first, we were using LoadRunner, but we quickly moved to Performance Center. After a year I was put in charge of the Performance Center platform (9.52

Open Source 223

Open Source Performance Testing Testing Performance 223

All Things Distributed

MARCH 11, 2015

Adoption is now really starting to explode in 2015 as more and more businesses understand the power analytics has to empower their organizations. A business unit can now go out and create their own data warehouse in the cloud of a size and speed that exactly matches what they need and are willing to pay for.

Analytics 136

Analytics Cloud Healthcare Retail 136

Dean Hume

JULY 22, 2015

The presentation itself was based on the importance of mobile web performance and a covered a few guidelines that you can use to improve the speed of your mobile websites. This talk was aimed at all developers that build websites and dives into basic and advanced web performance techniques - there is something for everyone!

Website 40

Website Mobile Speed Network 40

Dean Hume

JULY 22, 2015

The presentation itself was based on the importance of mobile web performance and a covered a few guidelines that you can use to improve the speed of your mobile websites. This talk was aimed at all developers that build websites and dives into basic and advanced web performance techniques - there is something for everyone!

Website 40

Website Mobile Speed Network 40

Dean Hume

JULY 22, 2015

The presentation itself was based on the importance of mobile web performance and a covered a few guidelines that you can use to improve the speed of your mobile websites. This talk was aimed at all developers that build websites and dives into basic and advanced web performance techniques - there is something for everyone!

Website 40

Website Mobile Speed Network 40

PDC

APRIL 14, 2019

It ranks the world’s 500 most powerful supercomputers based on their performance as measured by the Linpack benchmark. In addition to performance, the Top500 list also summarises the main characteristics of the supercomputers in the list. Performance development. Supercomputer. The Top500 list is all about supercomputers.

Energy 40

Energy Benchmarking Efficiency Website 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you time time?

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 40

Speed Java AWS Virtualization 40

Dynatrace

AUGUST 17, 2023

In 2015, the Spring folks already regarded Dynatrace as the gold standard for performance monitoring. We also use Micrometer to analyze ingest queue processing speed, which helps us make decisions about adding resources. Some years ago, I worked closely with the Spring Framework team as a product manager at Pivotal Software.

Metrics 200

Metrics Analytics Speed Java 200

Speed Curve

DECEMBER 19, 2018

Understanding the importance of loading scripts asynchronously might help increase adoption of this critical performance improvement, so we're going to walk through the evolution of async script loading starting way back in 2007. The preloader is the most important performance improvement browsers ever made. Finally: Async.

Internet 53

Internet Internet Website Traffic 53

Alex Russell

JANUARY 30, 2024

The usual caveats also apply: Performance is a deep and nuanced domain, and much can go wrong beyond content size and composition. How sites manage resources after-load can have a big impact on perceived performance. Until and unless teams have better data about their performance, the global baseline budget should be enforced.

Performance 90

Performance Network Mobile Speed 90

Dynatrace

APRIL 19, 2021

I am delighted to share, Dynatrace has been named a Leader for the 11 th consecutive time in the 2021 Gartner Magic Quadrant for Application Performance Monitoring (APM) report. Dynatrace enables our customers to tame cloud complexity, speed innovation, and deliver better business outcomes through BizDevSecOps collaboration.

DevOps 264

DevOps Innovation Speed Infrastructure 264

Tim Kadlec

MARCH 14, 2019

That’s what it was called back in 2015 when the team working on the service wrote up a detailed paper about the optimizations Flywheel applied , and why. When Data Saver mode is enabled, Chrome will attempt to make optimizations to the page to reduce data usage and improve overall performance.

Google 63

Google Traffic Cache Servers 63

Dynatrace

APRIL 19, 2021

I am delighted to share, Dynatrace has been named a Leader for the 11 th consecutive time in the 2021 Gartner Magic Quadrant for Application Performance Monitoring (APM) report. Dynatrace enables our customers to tame cloud complexity, speed innovation, and deliver better business outcomes through BizDevSecOps collaboration.

DevOps 162

DevOps Innovation Speed Infrastructure 162

The Netflix TechBlog

JULY 1, 2019

Development As part of developing this type of UI experience on any platform, we knew we would need to think about creating smooth, performant animations with a balance between quality and download size for the images and video previews, all without degrading the performance of the app. One such area is our graphics memory management.

Cache 166

Cache Design Testing Development 166

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

CSS - Tricks

NOVEMBER 26, 2021

I’ve got some blind spots in CSS-related performance things. into processing/rendering/painting on the GPU rather than CPU , which is a speed boost. scrolling performance improvement is a massive deal! One example is the will-change property. It’s a good name. el.additional-hard-to-know-state { opacity: 0; }.

Speed 60

Speed Performance Testing Design 60

Enprowess

MAY 24, 2022

More incredible Speed with Virtual DOM. Reactjs can help your business in web and mobile application development by bringing fast speed using the virtual DOM. This functionality gives an edge to Reactjs by increasing performance and decreasing programming time compared to another mobile app development platform. React Native.

Mobile 52

Mobile Open Source Virtualization Speed 52

Brendan Gregg

NOVEMBER 29, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 111

Virtualization AWS Hardware Storage 111

Testsigma

MARCH 23, 2022

In 2015, 49% of respondents communicated they always tested manually. Although developing with low-code and no-code often accelerates the development process and enables more straightforward enhancements, DevOps teams should still perform testing and configuration reviews. Exploratory Testing in Agile. Behavior-Driven Development.

Testing Tools 52

Testing Tools Code Testing Speed 52

The Morning Paper

JANUARY 23, 2020

Trade-offs under pressure: heuristics and observations of teams resolving internet service outages , Allspaw, Masters thesis, Lund University 2015. This is part 2 of our look at Allspaw’s 2015 master thesis (here’s part 1 ). 1:06pm reports of the personalised homepage having issues start appearing from multiple sources.

Internet 53

Internet Internet Cache Engineering 53

The Agile Manager

JANUARY 31, 2020

There is an alternative perspective that is far more optimistic : digital companies drive down costs through hyper-efficiency (speed, automation and machine scale) and price transparency. Ride sharing services have added driver/fleet capacity and accelerated speed-of-access for local transportation service.

Energy 52

Energy Government Entertainment Transportation 52

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40