Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? In 2019 myself and others tested kvm-clock and found it was only about 20% slower than tsc. Try changing the kernel clocksource.

Speed 40

Speed Java AWS Virtualization 40

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. Throughput and latency. km university campus.

Energy 130

Energy Latency Performance Network 130

KeyCDN

JULY 11, 2019

Using an image CDN, such as KeyCDN, can significantly reduce the latency of your image delivery. Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 For example, while the average mobile download speed on 4G in Switzerland is fast at 35.2 KB and the average mobile page is 1,683.5

Speed 52

Speed Website Mobile Latency 52

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]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. Start Render time, Speed Index ). Vitaly Friedman. Web performance is a tricky beast, isn’t it?

Performance 104

Performance Cache Metrics Network 104

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

CSS Wizardry

MARCH 3, 2019

— Harry Roberts (@csswizardry) 3 March, 2019. If, however, there wasn’t a new file on the server, we’ll bring back a 304 header, no new file, but an entire roundtrip of latency. We can completely cut out the overhead of a roundtrip of latency. On high latency connections, this saving could be tangible. FAQs Page.

Cache 264

Cache Latency Strategy Servers 264

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Alex Russell

DECEMBER 18, 2022

We're burning our inheritance and polluting the ecosystem on shockingly thin, perniciously marketed claims of "speed" and "agility" and "better UX" that have not panned out at all. Speeds will be much slower than advertised in many areas , particularly for rural users.

Performance 113

Performance Network Mobile Latency 113

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. The next closest active POP location to Bucharest was Istanbul which was still almost 900km away; this distance adds up in terms of latency. USD each online annually.

Internet 48

Internet Internet Ecommerce Speed 48

KeyCDN

JUNE 20, 2019

However, in 2019, the expectation for a good user experience is now higher than ever. The lower conversion rate on mobile could be due to a variety of reasons including the website not being responsive for mobile devices, the speed isn’t up to par, etc. Improve Site Speed In 2019, having fast site speed is imperative.

Ecommerce 41

Ecommerce Speed Website Mobile 41

SQL Performance

APRIL 27, 2020

Microsoft took that idea and built a new compute tier called Azure SQL Database serverless, which became generally available in November 2019. This works well for many SQL Server workloads, however, there have been use cases for a lower CPU latency and higher clock speed for CPU-heavy workloads and a need for higher memory per vCore.

Azure 55

Azure Database Serverless Hardware 55

All Things Distributed

SEPTEMBER 25, 2017

The Region will be in the heart of Gulf Cooperation Council (GCC) countries, and we're aiming to have it ready by early 2019. This Region will consist of three Availability Zones at launch, and it will provide even lower latency to users across the Middle East. This news marks the 22nd AWS Region we have announced globally.

Cloud 152

Cloud Education Energy Government 152

Alex Russell

MARCH 6, 2021

India has been the epicentre of smartphone growth in recent years, owing to the sheer size of its market and an accelerating shift away from feature phones which made up the majority of Indian mobile devices until as late as 2019. So what did $150USD fetch in 2019? The smooth, dulcet tones of 2019's Moto E6. " package.

Performance 124

Performance Network Cache Metrics 124

CSS - Tricks

MARCH 16, 2020

But equally, Simon the project manager may not understand what Speed Index or First Contentful Paint means, but when he sees the Lighthouse report showing website performance score knee deep in the red, he knows you still have work to do. If your latency is higher than 50ms, users may perceive your app as laggy.

Google 82

Google Latency Website Metrics 82

SQL Performance

APRIL 8, 2019

This processor has a base clock speed of 2.0GHz, with an all-core boost speed of 2.55GHz, and a max boost clock speed of 3.0GHz. This processor has a base clock speed of 3.1GHz, with an all-core boost speed of 3.6GHz, and a max boost clock speed of 3.8GHz. The L3 cache size is 64MB. Azure Lsv2 Details.

Azure 42

Azure Virtualization Storage Benchmarking 42

HammerDB

OCTOBER 18, 2019

rc3-custom #1 SMP Mon Aug 12 14:07:33 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Welcome to Ubuntu 19.04 (GNU/Linux 5.3.0-rc3-custom The governor "powersave" may decide which speed to use within this range. The governor "performance" may decide which speed to use within this range. uname -a Linux ubuntu19 5.3.0-rc3-custom

Benchmarking 63

Benchmarking Performance Hardware C++ 63

Smashing Magazine

APRIL 17, 2019

2019-04-17T12:30:16+02:00. 2019-04-29T18:34:58+00:00. This typically happens once per server and takes up valuable time — especially if the server is very distant from the browser and network latency is high. Speed Up Next-Page Navigations With Prefetching ,” Addy Osmani. (il). Drew McLellan.

Performance 106

Performance Games Servers Cache 106

O'Reilly

DECEMBER 2, 2019

High-speed networks through 5G may represent the next generation of cord cutting. Rural connectivity is a persistent problem; many rural users (and some urban users) are still limited to dial-up speeds. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions. I don’t, do you?

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

KeyCDN

SEPTEMBER 12, 2019

When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 Image Compression Just how much of a website is made up of images?

Social Media 106

Social Media Media Google Website 106

Smashing Magazine

JANUARY 11, 2021

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!),

Performance 145

Performance Cache Media Metrics 145

Rigor

JULY 2, 2019

By adding the need for additional JavaScript resources to your page, you increase the latency caused by the need to first download the webpage and then parse and execute the JavaScript before the browser can execute the redirect. Originally published September 2016, updated July 2019. REQUEST A FREE TRIAL OF RIGOR.

Mobile 60

Mobile Traffic Google Latency 60

Smashing Magazine

JANUARY 6, 2020

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Start Render time, Speed Index ). Treo Sites provides competitive analysis based on real-world data.

Performance 145

Performance Cache Network Metrics 145

The Morning Paper

SEPTEMBER 12, 2019

The Apache MADLib project is still going strong, and the recent (July 2019) 1.16 Beyond that, the RDBMS wins: For the Word2Vec and LDA computations the speed-ups as the number of dimensions/topics grows are very significant (e.g release even includes some support for deep learning. minutes vs almost 5hrs for LDA with 50,000 topics).

Network 44

Network Database Programming Hardware 44

KeyCDN

MAY 14, 2019

Advantages of Using Our Image Processing Each millisecond matters when it comes to delivering content at a blazing fast speed. This allows for global processing, which means no matter where your users are located they will receive processed images with low latency. For example, the query string ?

Processing 13

Processing Cache Latency Network 13

HammerDB

OCTOBER 12, 2018

maximum transition latency: Cannot determine or is not supported. . GHz. The governor "performance" may decide which speed to use within this range. CPUs which need to have their frequency coordinated by software: 0 . hardware limits: 1000 MHz - 3.80 current CPU frequency: 1.99

Best Practices 40

Best Practices Scalability Performance C++ 40

All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. For VR, this is a journey that is already one-third complete and expected to be finished by the end of 2019.

AWS 124

AWS Cloud Games Serverless 124

Smashing Magazine

SEPTEMBER 29, 2021

Assuming encode/decode speeds meet your needs. Encode/Decode Speed. Degree of compression, image quality, and decoding speed are key factors to be considered when comparing image performance for the web. It was released in February 2019 by the Alliance for Open Media (AOMedia). JPEG is also a lossy compression format.

Open Source 145

Open Source Speed Website Google 145