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?

Performance 52

Performance Latency Cache Virtualization 52

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As of 2016, there were just over 5.1 In terms of Internet speed, Finland ranks as one of the fastest countries in the world. penetration rate. What’s Next?

Internet 48

Internet Internet Speed Network 48

Rigor

JANUARY 13, 2020

Yet, we wanted to put together our list of the top web performance books for anyone who cares about speed of the web and would like to explore the timeline of web performance engineering milestones over nearly two decades through the lens of published books. High Performance Browser Networking. Site speed & SEO go hand in hand.

Performance 75

Performance Social Media Website Website Performance 75

Percona

SEPTEMBER 19, 2023

Now, since backup speed and compactness are important for busy, important databases, Percona’s open source physical backup solution – Percona XtraBackup (PXB) , takes into account all these aspects and benefits MySQL world with its exceptional capabilities! -R Copyright (c) 2016, 2023, Oracle and/or its affiliates.

C++ 105

C++ Servers Storage Speed 105

CSS - Tricks

JANUARY 31, 2020

From 2016 (PDF warning) to 2019 , the average mobile download speed in the U.S. In Brazil and India, average mobile download speeds increased by 75% and 28%, respectively, in that same period of time. has increased by 73%.

Innovation 50

Innovation Mobile Best Practices Speed 50

SQL Server According to Bob

JULY 13, 2016

Today we are introducing the new Basic Installer experience for SQL Server 2016 Express , SQL Server 2016 Developer , and SQL Server 2016 Evaluation Editions. We actually launched this functionality for SQL Server 2016 Express Edition when SQL Server 2016 RTM was announced but didn’t really promote this.

Servers 40

Servers Media Engineering Virtualization 40

Rigor

SEPTEMBER 11, 2019

list of those who are making a significant impact on speeding up the web today. Follow him on Twitter @ RickByers and be sure to watch the video of his conversation at Chrome Dev Summit 2016 , where he discussed the ways Chrome is “improving predictability for developers.” Here is our (ever-growing!) Rachel Andrew.

Performance 89

Performance Education Google Website 89

Rigor

MARCH 20, 2018

I recently was asked the following question by an online retailer: “Why should I invest in monitoring the user experience when I already have monitoring for our database, infrastructure, app server, and network?”. Instead of asking that question, I asked them this: “Are you a network or hosting provider?

Monitoring 40

Monitoring Retail Ecommerce Infrastructure 40

Rigor

JULY 2, 2019

Time spent on redirect is most noticeable on mobile devices, especially since they tend to use slower networks. Originally published September 2016, updated July 2019. This is 11% of the time required when the multiple redirects are executed. Reducing the Use of Redirection. Use Responsive Layouts. REQUEST A FREE TRIAL OF RIGOR.

Mobile 60

Mobile Traffic Google Latency 60

Speed Curve

DECEMBER 19, 2018

Because the HTML parser stopped, all network traffic also stopped (because no other HTML tags were parsed to initiate HTTP requests). The number of sync dropped and async rose in June 2016. Here's what loading 14 scripts looked like in Internet Explorer 7: I've added a red arrow at the beginning of each script request.

Internet 53

Internet Internet Website Traffic 53

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

SQL Server According to Bob

SEPTEMBER 26, 2016

Performance issues surrounding Availability Groups typically were related to disk I/O or network speeds. While we were confident in the design of SQL Server 2012, several customers reported to us performance problems that did not appear to be with disk subsystems, CPU, or networks. one without a replica).

Availability 40

Availability Servers Hardware Benchmarking 40

Alex Russell

DECEMBER 18, 2022

TL;DR : To serve users at the 75 th percentile ( P75 ) of devices and networks, we can now afford ~150KiB of HTML/CSS/fonts and ~300-350KiB of JavaScript (gzipped). This is a slight improvement on last year's budgets , thanks to device and network improvements. This is an ethical crisis for the frontend. 2023 Content Targets #.

Performance 113

Performance Network Mobile Latency 113

CSS - Tricks

APRIL 1, 2021

Speed is also something Google considers when ranking your website placement on mobile. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools.

Cache 92

Cache Social Media Media Network 92

CSS Wizardry

MARCH 3, 2019

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all. Any asset that carries the no-store directive will always hit the network, no matter what. How is your knowledge of caching and Cache-Control headers? Now we’d use no-store.

Cache 264

Cache Latency Strategy Servers 264

MachMetrics

JUNE 30, 2021

Website performance & speed plays a major role in the success of an online business. Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. How to get these matrics right and not mess up?

Cache 78

Cache Speed Google Website 78

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

Brendan Gregg

NOVEMBER 29, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. AWS called this [enhanced networking]. Impressive!

Virtualization 111

Virtualization AWS Hardware Storage 111

Alex Russell

MARCH 31, 2022

De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. Late in the drafting of this post, it was pointed out to me by Frederik Braun that Brad Hill had considered the downsides of a site-populated SRI addressable cache back in 2016. It turns out this idea has been circulating for a while.

Cache 82

Cache Government Traffic Network 82

Tim Kadlec

JANUARY 9, 2019

Sites that use an excess of resources, whether on the network or on the device, don’t just cause slow experiences, but can leave entire groups of people out. Similarly, there is a growing gap between what a top of the line network connection can handle and what someone with a poor mobile connection or satellite connection can handle.

Performance 111

Performance Energy Internet Internet 111

All Things Distributed

DECEMBER 12, 2018

We launched Edge Network locations in Denmark, Finland, Norway, and Sweden. The second platform is a managed IoT cloud with customer-facing applications and data management, which went live in 2016. Today, we add to that presence with an infrastructure Region in Stockholm with three Availability Zones.

AWS 124

AWS Cloud Games Serverless 124

Brendan Gregg

NOVEMBER 28, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. AWS called this [enhanced networking]. Impressive!

Virtualization 40

Virtualization AWS Hardware Storage 40

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). I wrote about it in a previous post, [DTrace for Linux 2016]. I wrote a page on it: [perf]. - **eBPF**: tracing features completed in 2016, this provides efficient programmatic tracing to existing kernel frameworks. The hardest part on Linux is now done: kernel support. It's the official profiler.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. The median user is on a slow network.

Performance 68

Performance Benchmarking Network Mobile 68

Alex Russell

MAY 9, 2022

Reduced network and device capacity correlate with other access challenges. Folks with powerful laptops, new iPhones, and low-latency networks are noticing, which is a very bad sign. Do they have a device-class or network condition target ? miAi3020A9G #perfmatters 1 10:04 AM · Jul 7, 2016. sales, marketing, etc.)?

Performance 86

Performance Latency Metrics Engineering 86

Smashing Magazine

JULY 6, 2021

With Luminary’s 21 years of experience in the digital space, my experience of 17 years in the CMS space as well as our focus on Headless since 2016, here are my two cents on what you should look out for. This speeds up the retrieval process and brings in performance improvements to your application. Microservices architecture.

Cache 143

Cache Website Mobile Google 143

Smashing Magazine

OCTOBER 26, 2018

In addition to MVC separation, we can (for security reasons or speed improvements) place the JS App on a separate server like in the schema below: Decoupled WordPress diagram. on December 6th, 2016. The downside of using it is its speed. In the meantime, please share your ideas on speeding up decoupled WordPress!

Cache 78

Cache Website Speed Database 78

The Symphonia

DECEMBER 6, 2017

That means that 3GB functions might not see a linear speed bump for primarily single threaded functions. to a massively distributed CDN network a possibility. There have been some improvements since re:Invent 2016 but to see nothing announced at this re:Invent was very disappointing. without web app servers?—?to But this year?

Serverless 40

Serverless Lambda AWS Traffic 40

John McCalpin

NOVEMBER 5, 2016

In the latest (October 2016) revision of Intel’s Instruction Extensions Programming Reference , Intel has disclosed a fairly dramatic departure from these “traditional” approaches. The core does not have enough load bandwidth to perform all of these extra load operations at full speed.

Cache 40

Cache C++ Latency Hardware 40

Testsigma

DECEMBER 8, 2019

It has been since 2016 that a major IT firm WIPRO has been pushing for the application of hyper-automation to all their processes in their own firm. According to Gartner , Hyper automation is a technology trend to look out for in 2020. IoT or Internet of Things is an example of that. Automation to Enhance AI Security Defence.

IoT 78

IoT Software Software Artificial Intelligence 78