Brendan Gregg

JULY 4, 2021

## References I've reproduced the talk references 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? Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

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

SQL Server According to Bob

SEPTEMBER 26, 2016

When we released Always On Availability Groups in SQL Server 2012 as a new and powerful way to achieve high availability, hardware environments included NUMA machines with low-end multi-core processors and SATA and SAN drives for storage (some SSDs). As we moved towards SQL Server 2014, the pace of hardware accelerated.

Availability 40

Availability Servers Hardware Benchmarking 40

Sutter's Mill

JULY 13, 2019

We are on our planned course and speed: Fixing bugs is the purpose of this final year, and it’s why this schedule set the feature freeze deadline for C++“20” in early “19” (Kona), to leave a year to fix bugs including to get a round of international comments this summer. This has been the model since 2012, and we don’t want to go back.

C++ 98

C++ Entertainment Education Azure 98

Alex Russell

FEBRUARY 28, 2022

I propose four key ingredients: Definition: What is "performance" beyond page speed? Tim Berners-Lee tweets that 'This is for everyone' at the 2012 Olympic Games opening ceremony using the NeXT computer he used to build the first browser and web server. The predominant answer: a unified theory of web performance.

Performance 104

Performance Latency Architecture Network 104

Tim Kadlec

JANUARY 9, 2019

Mbps download speed Jake Archibald mentioned his relative getting or the 0.8 Mbps download speed my in-laws get at their house. In a 2012 paper, The American Council for an Energy-Efficient Economy estimated the internet uses 5 kWh on average to support every GB of data. It seems blazingly fast compared to the 0.42

Performance 111

Performance Energy Internet Internet 111

Alex Russell

MARCH 6, 2021

The cheapest (high volume) Androids perform like 2012/2013 iPhones, respectively. If those specs sound eerily familiar, it's perhaps because they're identical to 2016's $200USD Moto G4 , all the way down to the 2011-vintage 28nm SoC process node used to fab the chip's anemic, 2012-vintage A53 cores. Tap for a larger version.

Performance 124

Performance Network Cache Metrics 124

Speed Curve

AUGUST 8, 2017

I've written a lot of posts about page bloat, starting way back in 2012, when the average page hit 1MB. In this graph, the steep rise of onload slightly hides the fact that Speed Index trends upward quite significantly – from 2393 (~2.4 A couple of month ago, someone asked if I'd written a page bloat update recently.

Metrics 80

Metrics Website Speed Benchmarking 80

Brendan Gregg

NOVEMBER 29, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. This was initially used via the ixgbe driver for speeds up to 10 Gbps, then the ena driver for speeds up to 25 Gbps. I'd expect measurable overhead of 10% to 50% (depending on the PV type and workload). I'd expect between 0.1%

Virtualization 111

Virtualization AWS Hardware Storage 111

All Things Distributed

SEPTEMBER 25, 2017

Some of the Middle East's most established enterprises, such as Actel, Al Tayer Group, Batelco, flydubai, Hassan Allam, Middle East Broadcasting Center, Silah Gulf, Souq.com, Union Insurance, United Arab Shipping Company, and many others, are using AWS to drive cost savings, accelerate innovation, and speed time-to-market.

Cloud 152

Cloud Education Energy Government 152

All Things Distributed

JULY 19, 2012

By Werner Vogels on 19 July 2012 12:00 AM. While disk density is still increasing the access speeds are not and as such they will provide good sequential access, however random access is not improving at all. All Things Distributed. Werner Vogels weblog on building scalable and robust distributed systems. Expanding The Cloud â??

Cloud 129

Cloud Performance AWS Virtualization 129

SQL Performance

JULY 16, 2019

This situation was so bad that Microsoft offered a 25% discount on the cost of SQL Server processor core licenses for SQL Server 2012 and SQL Server 2014, if you ran on qualifying AMD Opteron processors with six or more cores.

Servers 46

Servers Hardware Architecture Retail 46

SQL Performance

JUNE 21, 2019

Prior to SQL Server 2012, the maximum server memory value only applied to the bufferpool, so customers needed to limit the amount of memory the bufferpool could use to save memory for the operating system and other processes. Fragmentation occurs through regular operations such as inserts, updates and deletes.

Servers 49

Servers Azure Hardware Database 49

Dean Hume

JULY 5, 2016

The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated. If you'd like to learn more about Speed Index, the following link gives you more detail. True story! Collect your own custom metrics.

Website 40

Website Metrics Speed Testing 40

Dean Hume

JULY 5, 2016

The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated. If you'd like to learn more about Speed Index, the following link gives you more detail. True story! Collect your own custom metrics.

Website 40

Website Metrics Speed Testing 40

Dean Hume

JULY 5, 2016

The Speed Index metric was invented by WebPagetest. The Speed Index metric was added to WebPagetest in 2012 and measures how quickly the page contents are visually populated. If you'd like to learn more about Speed Index, the following link gives you more detail. True story! Collect your own custom metrics.

Website 40

Website Metrics Speed Testing 40

Brendan Gregg

NOVEMBER 28, 2017

Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. This was initially used via the ixgbe driver for speeds up to 10 Gbps, then the ena driver for speeds up to 25 Gbps. I'd expect measurable overhead of 10% to 50% (depending on the PV type and workload). I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40

Speed Curve

DECEMBER 19, 2018

Browsers added support for this attribute starting with Firefox and Chrome in 2010, followed by Safari and Internet Explorer in 2012. The best way to load scripts asynchronously is to use the async attribute. Before these were widely supported, developers could load scripts asynchronously using a variety of techniques (i.e.,

Internet 53

Internet Internet Website Traffic 53

All Things Distributed

APRIL 5, 2012

By Werner Vogels on 06 April 2012 06:00 AM. We have been able to meet our goal of architecting our application for 0% "maintenance downtime" Out of the box, RDS CloudWatch data and graphs speed up the troubleshooting process. Werner Vogels weblog on building scalable and robust distributed systems. Comments ().

Innovation 146

Innovation AWS Education Network 146

Smashing Magazine

APRIL 1, 2020

Wordpress relies heavily on plugins and themes which may contain malicious codes or bugs and slow the speed of the website or blog. Agility CMS is a Content-First Headless CMS, allowing you to choose any programming language while also getting the flexibility, speed, and power that comes from lightweight APIs. Traditional CMS e.g

Open Source 103

Open Source Website Mobile Code 103

Smashing Magazine

APRIL 9, 2019

Let’s imagine that it’s 2012 and everyone is using the brand new jQuery 1.8. Content-Security-Policy: require-sri-for script; This is a way to ensure that SRI is always used, which could be useful on sites worked on by multiple team members who may or may not be fully up to speed with how to do things. What Could Go Wrong?

Website 58

Website Servers Code Best Practices 58

Alex Russell

AUGUST 20, 2015

Recall that in 2012, Google, Apple, Blackberry, and a host of other vendors were all shipping browsers based on a single CSS engine (WebKit) without changing the -webkit- prefixes to be vendor-specific ; e.g. This is natural and, perhaps even healthy. In technology as in life there is no stasis, only various speeds of growth or decay.

Programming 54

Programming Google Infrastructure Engineering 54

All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. We welcome that DAX is generally available."

Speed 121

Speed Cache Latency AWS 121

O'Reilly Software

OCTOBER 23, 2018

By 2012, Harvard Business Review published an article by Thomas Davenport and D.J. Improve time to market/speed of operations. Patil called " Data Scientist: The Sexiest Job of the 21st Century." Cross-sell more products. Increase market share. Increase share of wallet. Increase yield. Improve customer retention. Improve safety.

Strategy 100

Strategy Architecture Technology Technology 100

Smashing Magazine

OCTOBER 3, 2019

O Design de Bea Feitler ,” written by her nephew, was published in her native Brazil in 2012. I’d like to create the impression these cars are speeding past the viewer by adding motion blur. Only one exhibition has been staged about her work and one retrospective book published. “ It’s the most expensive book I’ve bought.

Design 77

Design Media Website Speed 77

All Things Distributed

MAY 13, 2012

By Werner Vogels on 14 May 2012 12:01 AM. In addition to these features, there are other things the CloudFront team has achieved to speed up delivery of content, but all customer will get these benefits by default without additional configuration. All Things Distributed. Dynamic Content Support in Amazon CloudFront. Comments ().

Cache 117

Cache Latency AWS Website 117

Smashing Magazine

AUGUST 20, 2021

In 2012, Dave Cole published a post on How we build CMS free websites. Thanks to the build speed of static site generators like Hugo and modern Jamstack CMSs designed to handle vast amounts of content, even prominent blogs like Smashing Magazine , web.dev , and JFK International Air Terminal can take advantage of a Jamstack approach.

Ecommerce 139

Ecommerce Website Government Internet 139

All Things Distributed

DECEMBER 12, 2013

So when we launched in January 2012, we provided simple query functionality that used hash primary keys or composite primary keys (hash + range). To speed up queries on non-key attributes, you can specify global secondary indexes. Since then, we have been working on adding flexible querying.

Games 130

Games Scalability Database Retail 130

Smashing Magazine

OCTOBER 6, 2021

If you use CodePen, the default reset is Normalize.css , authored by Nicolas Gallagher and initially released in 2012. Speaking of layers — speeding through the spec process is another new feature that was designed specifically to assist in orchestrating the cascade and alleviating clashes.

Design 145

Design Availability Mobile Website 145

All Things Distributed

OCTOBER 2, 2017

With these goals in mind, In January, 2012 we launched Amazon DynamoDB , our cloud-based NoSQL database service designed from the ground up to support extreme scale, with the security, availability, performance and manageability needed to run mission-critical workloads. Manageable – The service would need to be easy to manage and operate.

Internet 128

Internet Internet AWS Performance 128