Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Database downtime can hurt or doom any company with anything to do with the internet.

Availability 107

Availability Database Open Source Hardware 107

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

OCTOBER 4, 2020

It’s a great analysis that taught me a lot about the realities of 5G, and the challenges ahead if we are to eventually get there. Our analysis suggests that the wireline paths, upper-layer protocols, computing and radio hardward architecture need to co-evolve with 5G to form an ecosystem, in order to fully unleash its potential.

Energy 130

Energy Latency Performance Network 130

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. All foreign websites hosted outside China undergoe screening and analysis for blacklisting and whitelisting.

Monitoring 52

Monitoring Performance Artificial Intelligence 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. Cloud enables video analytics.

Analytics 136

Analytics Cloud Healthcare Retail 136

Tim Kadlec

JANUARY 9, 2019

My home internet connection gives me somewhere around 3 Mbps down. Hardware gets better, sure. Just how much kWh are expended per one GB of data is up for some debate depending on your method of analysis. It seems blazingly fast compared to the 0.42 Mbps download speed Jake Archibald mentioned his relative getting or the 0.8

Performance 111

Performance Energy Internet Internet 111

Brendan Gregg

JULY 4, 2021

This was a chance to talk about other things I've been working on, such as the present and future of hardware performance. The video is on [youtube]: The slides are [here] or as a [PDF]: first prev next last / permalink/zoom I work on many areas of performance, but recently I've had a lot of demand to talk about BPF.

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 110

Performance Latency Cache Virtualization 110

Adrian Cockcroft

JUNE 2, 2023

Working from home is another tipping point, enabled by widespread deployment of laptops, home internet with capacity to run video (thanks in part to Netflix and other streaming services), and distributed productivity tools, then kicked over the line by the COVID-19 lockdown. They also provided a useful link to some references on the subject.

Social Media 98

Social Media Innovation Open Source Entertainment 98

Brendan Gregg

SEPTEMBER 25, 2021

This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Colleagues/Internet I love using Linux performance tools.

Speed 52

Speed Java AWS Virtualization 52

Percona

JUNE 20, 2023

I tried to search for details related to segmentation fault on the internet and found many articles; however, it failed to quench my thirst as none of them had the answer I was looking for. By doing some further analysis, it came to light that it creates issues with LEFT JOIN only. In the case of an equi-join, it works as expected.

Programming 83

Programming C++ Database Virtualization 83

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Brendan Gregg

SEPTEMBER 25, 2021

This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Colleagues/Internet I love using [Linux performance tools].

Speed 40

Speed Java AWS Virtualization 40

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. Many critiques are possible, both of the target (five seconds for first load), the sample population (worldwide internet users), and of the methodology (informed reckons).

Performance 90

Performance Network Mobile Speed 90

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

Alex Russell

APRIL 29, 2021

In almost every area, Apple's low-quality implementation of features WebKit already supports requires workarounds not necessary for Firefox (Gecko) or Chrome/Edge/Brave/Samsung Internet (Blink). is access to hardware devices. Some commenters appear to confuse unlike hardware for differences in software. Converging Views.

Media 145

Media Games Education Engineering 145

Smashing Magazine

AUGUST 3, 2021

Different browsers running on different platforms and hardware, respecting our user preferences and browsing modes (Safari Reader/ assistive technologies), being served to geo-locations with varying latency and intermittency increase the likeness of something not working as intended.

Network 145

Network Engineering Availability Monitoring 145

Dotcom-Montior

NOVEMBER 27, 2018

Design your test without the hassle of managing hardware, giving you the ability to identify objectives and define a scenario by setting up a number of users and test duration. You can also export all HTTP related data in CSV format for analysis using any tool you choose.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Scalegrid

JUNE 11, 2019

Cloud Infrastructure Analysis : Public Cloud vs. On-Premise vs. Hybrid Cloud. Public cloud is a cloud computing model where IT services are delivered across the internet. Tell us what you think below in the comments, and let us know if there’s a specific analysis you’d like to see in our next database trends report!

Open Source 55

Open Source Database Cloud Infrastructure 55

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. By knowing this, Kärcher can generate new top-line revenue in the form of subscription models for its analysis portal. More than mere support.

Artificial Intelligence 79

Artificial Intelligence Social Media Logistics AWS 79

Alex Russell

JULY 14, 2021

Modern browsers like Chrome and Samsung Internet support a long list of features that make web apps more powerful and keep users safer. Hardware access APIs, notably: Geolocation. Samsung Internet set as the default browser and loads web pages from links in the app. PWA Feature Detector. Web OTP (for easier/faster sign-in).

Google 121

Google Mobile Engineering Internet 121

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). My rock solid experience with Ubuntu is on an LTS release. ## Crash Dump Analysis It can be done.

Virtualization 76

Virtualization AWS Engineering Hardware 76

O'Reilly

NOVEMBER 28, 2023

AI users say that AI programming (66%) and data analysis (59%) are the most needed skills. That pricing won’t be sustainable, particularly as hardware shortages drive up the cost of building infrastructure. Data analysis showed a similar pattern: 70% total; 32% using AI, 38% experimenting with it.

Open Source 108

Open Source Artificial Intelligence Google Infrastructure 108

The Netflix TechBlog

APRIL 29, 2019

Content is placed on the network of servers in the Open Connect CDN as close to the end user as possible, improving the streaming experience for our customers and reducing costs for both Netflix and our Internet Service Provider (ISP) partners. It serves as an entry point into any new analysis.

Open Source 279

Open Source Network Infrastructure Big Data 279

High Scalability

OCTOBER 24, 2022

Cloud Infrastructure Services -- An analysis of potentially anti-competitive practices by Professor Frédéric Jenny. Each cloud-native evolution is about using the hardware more efficiently. Nitro is a revolutionary combination of purpose-built hardware and software designed to provide performance and security.

Cloud 187

Cloud Hardware Infrastructure Innovation 187

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. Over the years this product has grown into a complete data platform including Reporting Services, Analysis Services, Integration Services, more tools, Replication, R Services, and much more. So I proceeded to install SQL Server 4.20 on my Windows NT 3.1 It would scare you).

Servers 40

Servers Media Engineering Virtualization 40

All Things Distributed

APRIL 4, 2017

After finding it cost prohibitive to use colocation centers in local markets where their users are based, iZettle decided to give up hardware. Icelandic low-cost airline carrier WOW air is using AWS for its Internet-facing IT infrastructure, including its booking engine, development platforms, and web servers.

AWS 117

AWS Airlines Latency Games 117

Smashing Magazine

JANUARY 6, 2020

Treo Sites provides competitive analysis based on real-world data. On the other hand, we have hardware constraints on memory and CPU due to JavaScript parsing times (we’ll talk about them in detail later). Large preview ). From Fast By Default: Modern loading best practices by Addy Osmani (Slide 19).

Performance 145

Performance Cache Network Metrics 145

Highly Scalable

SEPTEMBER 18, 2012

A database should accommodate itself to different data distributions, cluster topologies and hardware configurations. It is worth noting that the analysis above highlights a number of tradeoffs: Consistency-availability tradeoff. Chord: A Scalable Peer-to-peer Lookup Service for Internet Applications. Data Placement.

Database 213

Database Latency C++ Scalability 213

Smashing Magazine

JANUARY 11, 2021

Treo provides competitive analysis based on real-world data. On the other hand, we have hardware constraints on memory and CPU due to JavaScript parsing and execution times (we’ll talk about them in detail later). Not to mix up with Microsoft’s JPEG-XR coming from good ol' Internet Explorer 9 times). Large preview ).

Performance 145

Performance Cache Media Metrics 145

All Things Distributed

NOVEMBER 15, 2010

The early GPU systems were very vendor specific and mostly consisted of graphic operators implemented in hardware being able to operate on data streams in parallel. Programming the GPU evolved in a similar fashion; it started with the early APIs being mainly pass-through to the operations programmed in hardware. Recent Entries.

AWS 136

AWS Latency Programming Architecture 136

All Things Distributed

NOVEMBER 30, 2016

Today, I want to focus on helping app developers who have chosen to develop their apps on AWS and have in the past developed some of the seminal apps of our times on AWS, such as Netflix, AirBnB, or Pinterest or created internet connected devices powered by AWS such as Alexa and Dropcam. Facial Analysis. Amazon Lex.

AWS 166

AWS Lambda Artificial Intelligence Mobile 166