Scalegrid

MAY 13, 2020

Greenplum Database is an open-source , hardware-agnostic MPP database for analytics, based on PostgreSQL and developed by Pivotal who was later acquired by VMware. Greenplum uses an MPP database design that can help you develop a scalable, high performance deployment. What Exactly is Greenplum? At a glance – TLDR. Open Source.

Big Data 321

Big Data Database Artificial Intelligence Open Source 321

Tim Kadlec

JANUARY 9, 2019

One question I’ve seen posed a few times in the past several months is whether performance really is a moral or ethical concern, or if that’s all heavy-handed exaggeration. When you stop to consider all the implications of poor performance, it’s hard not to come to the conclusion that poor performance is an ethical issue.

Performance 111

Performance Energy Internet Internet 111

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

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

Dotcom-Montior

JUNE 15, 2020

The entire country of China’s internet connectivity is shielded by the Great Firewall (GFW). There are three state-owned ISP providers, China Unicom, China Telecom, and China Mobile , that control internet in China. The most recent technology automatically shuts internet off whenever blacklisted URLs are accessed.

Monitoring 52

Monitoring Performance Artificial Intelligence Internet 52

Testlodge

NOVEMBER 12, 2021

Software testers explore the effectiveness of processes that should lead to quality software products to make sure they perform the purpose for which they have been designed. Results may vary because of factors like resolution, internet speed, and different OS versions. Why Perform Compatibility Testing? Conclusion.

Testing 78

Testing Hardware Operating System Mobile 78

The Morning Paper

OCTOBER 4, 2020

Understanding operational 5G: a first measurement study on its coverage, performance and energy consumption , Xu et al., Here the first finding was that the current strategy for determining when to hand-off has a 25% probability of worsening your link performance after handover. Application performance. SIGCOMM’20.

Energy 130

Energy Latency Performance Network 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

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

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

CSS Wizardry

AUGUST 7, 2019

A trip from a device in London to a server in New York has a theoretical best-case speed of 28ms over fibre, but this makes lots of very optimistic assumptions. This is why serving your content from a CDN is so important: even in the internet age, being geographically closer to your customers is advantageous. Expect closer to 75ms.

Latency 269

Latency Ecommerce Servers Mobile 269

ACM Sigarch

OCTOBER 25, 2019

When it comes to hardware support to mitigate software security issues, there is a significant gap between what is available in products today and known solutions. Acceleration—Adding hardware support to reduce the runtime overheads of security features. However, higher performance does not necessarily fix the problem.

Hardware 98

Hardware Virtualization Architecture Games 98

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” Description.

Latency 51

Latency C++ Hardware Performance 51

Testsigma

FEBRUARY 3, 2021

Mobiles have different models, screen resolutions, operating systems, network types, hardware configurations, etc. Also, how to test the hardware of the mobile phone itself, is it supporting all the software as it should? Let us have a look at the most popular types of mobile testing for applications and hardware.

Mobile 82

Mobile Testing Hardware C++ 82

The Morning Paper

JANUARY 30, 2020

Since we’re talking about mobile applications, we have to assume a changing environment over time, including the possibility of losing internet connectivity altogether. These use their regression models to estimate processing time (which will depend on the hardware available, current load, etc.). Is the migration worth it though?

Mobile 104

Mobile Cloud Latency Games 104

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

NOVEMBER 27, 2018

Your customers demand optimal performance, whether they’re the only user or one of a thousand. Additionally, end users can access your site or applications from anywhere in the world using different browsers, operating systems, and mobile devices, all with varying connection speeds. Identifying performance bottlenecks.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

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 103

Performance Cache Metrics Network 103

Testsigma

JANUARY 30, 2021

With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. The native and mobile web browser testing is being performed more and more compared to desktop testing. The reason behind being the speed and convenience of using mobile phones.

Mobile 52

Mobile Testing Website Internet 52

All Things Distributed

MARCH 11, 2015

For example many of the Internet of Things innovations that we have seen come to life in the past years on AWS all have a significant analytics components to it. In the past analytics within an organization was the pinnacle of old style IT: a centralized data warehouse running on specialized hardware.

Analytics 135

Analytics Cloud Healthcare Retail 135

Smashing Magazine

MAY 20, 2020

How To Make Performance Visible With GitLab CI And Hoodoo Of GitLab Artifacts. How To Make Performance Visible With GitLab CI And Hoodoo Of GitLab Artifacts. Performance degradation is a problem we face on a daily basis. Performance is a competitive advantage that can bring and retain customers. Anton Nemtsev.

Performance 98

Performance Metrics Best Practices Code 98

Smashing Magazine

OCTOBER 27, 2021

In the late 1990s, marketing and advertising agencies saw the potential of eye-tracking for the Internet and started using the technology to analyze how people consume content online. For instance, Nielsen’s research conducted in 2006 showed that people read content on the Internet in an F-shaped pattern.

Mobile 111

Mobile Website Hardware Social Media 111

All Things Distributed

JULY 14, 2015

In just three short years, Amazon DynamoDB has emerged as the backbone for many powerful Internet applications such as AdRoll , Druva , DeviceScape , and Battlecamp. In traditional database architectures, database engines often run a small search engine or data warehouse engines on the same hardware as the database.

Database 167

Database Lambda AWS IoT 167

Testsigma

FEBRUARY 5, 2021

The high tech lab is remotely operational and specifically targets device behaviour in terms of speed, memory usage, and battery consumption. Once you have chosen your target devices, consider the architectural aspect of your hardware. Internet and Power Supply. These are the lifelines of any test lab.

Mobile 52

Mobile Testing Hardware DevOps 52

Testsigma

MAY 19, 2021

Thinking back on how SDLC started and what it is today, the only reasons for its success can be accounted to efficiency, speed and most importantly automation – DevOps and cloud-based solutions can be considered major contributors here (after all DevOps is 41% less time-consuming than traditional ops ). . Business Requirement.

DevOps 59

DevOps Cloud Artificial Intelligence Infrastructure 59

VoltDB

JUNE 1, 2017

It was – like the hypothetical movie I describe above – more than a little bit odd, as you could leave a session discussing ever more abstract layers of virtualization and walk into one where they emphasized the critical importance of pinning a network interface to a specific VM for optimal performance.

Hardware 56

Hardware Latency Virtualization Cloud 56

MachMetrics

JULY 27, 2018

I had always been an advocate for the Windows AMIs – as most of the world runs Windows instead of Linux, I wanted the performance to represent what the majority sees. One person tried to fix it by beefing up the hardware from a large to xlarge (which doubles the compute power), but that didn’t make a big difference.

Speed 40

Speed Hardware Internet Internet 40

Alex Russell

SEPTEMBER 20, 2020

Pre-publication gates were valuable when better answers weren't available, but commentators should update their priors to account for hardware and software progress of the past 13 years. The world didn't yet have pervasive multi-process browser sandboxing, JS JITs , or metal-speed binary isolation. Don't like the consequences?

Hardware 64

Hardware Mobile Programming Java 64

VoltDB

JUNE 1, 2017

It was – like the hypothetical movie I describe above – more than a little bit odd, as you could leave a session discussing ever more abstract layers of virtualization and walk into one where they emphasized the critical importance of pinning a network interface to a specific VM for optimal performance.

Hardware 40

Hardware Latency Virtualization Cloud 40

Rigor

MARCH 20, 2018

Instead of focusing on hardware and infrastructure first, technical teams should first ensure that they first have visibility on the thing that drives the business: their customer experience. Paul Calvano has an awesome post using HTTP archive data to detail the prevalence of third party content on the internet.

Monitoring 40

Monitoring Retail Ecommerce Infrastructure 40

Smashing Magazine

APRIL 19, 2021

LCP is supposed to measure loading performance and is a good proxy for all the old metrics we in the performance community used to use (i.e. Time to First Byte (TTFB), DOM Content Loaded, Start Render, Speed Index) — but from the experience of the user. Previous Web Performance Metrics. SpeedIndex (SI).

Google 140

Google Metrics Mobile Analytics 140

All Things Distributed

JULY 13, 2010

Cluster Computer Instances for Amazon EC2 are a new instance type specifically designed for High Performance Computing applications. During my academic career, I spent many years working on HPC technologies such as user-level networking interfaces, large scale high-speed interconnects, HPC software stacks, etc. HPC and Amazon EC2.

Cloud 118

Cloud AWS Automotive Latency 118

All Things Distributed

DECEMBER 20, 2017

Developments like cloud computing, the internet of things, artificial intelligence, and machine learning are proving that IT has (again) become a strategic business driver. We need mechanisms that enable the mass production of data using software and hardware capabilities. Nearly 15 years later, the situation has changed.

Artificial Intelligence 79

Artificial Intelligence Social Media Logistics AWS 79

Smashing Magazine

SEPTEMBER 3, 2021

The only time the Internet was mentioned was as a tool for communicating with one another without the need to chop down more trees, or for working without a commute. So, when people first started talking about the Internet having similar carbon emissions to the airline industry , I was a bit skeptical. Performance And Emissions.

Website 135

Website Energy Internet Internet 135

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). As a performance engineer who does kernel tracing, I find the lack of an ID I can trace in the kernel to be pretty annoying.

Virtualization 76

Virtualization AWS Engineering Hardware 76

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 105

Performance Network Latency Servers 105

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. The installer will also provide the options to perform a full ‘Custom’ installation, or to ‘Download Media’ only as the download button above provides. Don’t worry about taking screenshots or speed reading. Go install it”. on my Windows NT 3.1

Servers 40

Servers Media Engineering Virtualization 40