RUM Distillation 101 -- Part I

Doosan has introduced four new crawler excavator models to its lineup - the DX140LCR-3, DX420LC-3, DX490LC-3 and DX530LC-3. The new excavators provide improved power, performance, operator comfort and speed. They are equipped with interim Tier 4 engines to reduce emissions. The article provides specifications and details on features of the new excavators such as work modes, operator comfort improvements, and an optional straight travel feature. It also explains Doosan excavator model naming conventions.

Slides from my session at StartupBootcamp Smart City & Living program... You never get a second chance to make a first impression. The same goes for online, where the decision to bounce is often made in the first 2 seconds, and Google will lower your ranking if your site is too slow... This talks is about why startups should care about speed when building product, how to improve design with speed and how to measure & optimize speed and beat the (corporate) competition...

RUM experts share their perspectives! On the heels of SOASTA’s acquisition of LogNormal and mPulse product announcement at Velocity in London, we’re introducing our team and hosting a discussion with the experts on real user measurement. While RUM offerings have driven a lot of buzz lately, this preferred method of measurement for web — and now mobile — performance got its start early in this decade’s performance movement. Join us for a round table discussion on the importance that RUM has played and continues to play for development, test, operations and marketing professionals. This panel will be moderated by Cliff Crocker, SOASTA VP of Product Management. Panelists: Buddy Brewer – Former CEO of LogNormal, now SOASTA VP of Engineering Philip Tellis – Former CIO of LogNormal, now SOASTA Chief Architect Aaron Kulick – Founder of the SF WebPerf group and current guerrilla engineer on the Big Fast Data team @WalmartLabs

This document provides an operating manual for the MOTORSCAN WIDE diagnostic tool. It describes the tool's features and specifications, how to connect it to vehicles for diagnostic testing, and how to use its various functions. Instructions are included for quick start procedures with Harley-Davidson and Suzuki/Cagiva motorcycles.

Driv.in is a cloud-based fleet management and route optimization solution that helps companies reduce transportation costs and improve customer service. It generates optimized delivery routes for each vehicle based on order details, vehicle capacities and time windows. It also provides real-time monitoring of routes and driver behavior through a mobile app. Management reports provide metrics on customer service, transportation efficiency and driver performance.

Caroline Lussier is a graphic designer based in Pierrefonds, Quebec. She has over 25 years of experience in graphic design, photography, and sculpture. She has freelanced for individuals and companies designing various printed materials. She has also worked for publishing companies designing magazines, brochures, and other publications. She is proficient in various design software and works well under pressure to meet deadlines. She is looking for continued work in the graphic design field.

Load testing approaches of the past support application delivery of the past. Times have changed. Today’s leading companies do more testing in less time with higher coverage of their web and mobile applications, everyday. In this webinar you’ll learn: - Why user experience is king - How to do front-to-back performance testing for mobile and web apps - How to deploy web and mobile load tests with global scale and distribution - Live production testing enabled with real-time analysis and control - How real user monitoring drives test creation and guides production testing The time is now to move your testing from the past to the present! Join us for tips and tricks to get you there.

Load testing approaches of the past support application delivery of the past. Times have changed. Today’s leading companies do more testing in less time with higher coverage of their web and mobile applications, everyday. In this webinar you’ll learn: - Why user experience is king - How to do front-to-back performance testing for mobile and web apps - How to deploy web and mobile load tests with global scale and distribution - Live production testing enabled with real-time analysis and control - How real user monitoring drives test creation and guides production testing The time is now to move your testing from the past to the present! Join us for tips and tricks to get you there.

The article discusses Emergency Pipeline Repair Systems (EPRS), which are comprehensive emergency preparedness solutions that minimize downtime and impact following pipeline damage events. An EPRS is customized for each operator and involves risk assessments, procuring necessary repair materials and equipment in advance, and developing mobilization plans. This allows operators to reduce response times, better protect the environment, decrease outages, limit liability, and control communications regarding incidents. Creating an effective EPRS solution is complex, but proactively prepares operators to handle crises that will inevitably occur sometime in the future.

The document is a user's guide for the GL400 datalogger. It provides an overview of the datalogger's features, which include 7 analog channels and 1 pulse channel for the 8-channel model. It describes how to install the Global Logger software and connect sensors to the datalogger. The guide also explains how to use the software to sample data, get settings, retrieve data history, calibrate channels, and configure recording intervals and memory management.

In this webinar, you will discover: How Real User Measurement delivers greater insight about your customers’ online interactions and takes the guesswork out of performance management testing Why Real Time Monitoring can tell you what is possible and help focus on delivering against key business metrics How mPulse can help set accurate goals based on how fast your website should be to meet end users expectations and demands

Many engineering and operations teams would like to move to a Service Ownership: "You build it, you own it" operating model. However, as with many ancillary objectives driving DevOps across an organization, this is easier said than done. Often this is because teams lack the human-to-technology mechanisms that allow for a culture of service ownership. Within the context of incident response, teams need to be able to clearly define who is responsible for tending to issues, how they're notified, and who to lean on for help. This is true for non-incident response scenarios too. How can teams operate at a fast pace and at a large scale, while still maintaining valid and safe service ownership? One of the keys to allowing for service ownership outside of incident response is by imbuing an organization with a culture of self-service operations. This is where a service owner builds and delegates self-service mechanisms for end-users (non service owners) to make use of a given service safer while also reducing the number of interruptions to the service creator/owner. In this webinar, you'll learn: How self-service helps organizations adopt a ‘You Build it, You Own it’ model Necessary mechanisms for service owners to create self-service interfaces to address the needs of their service-users How to apply self-service while continuing to maintain security and compliance standards How to allow developers and SREs to safely delegate automation as self-service requests to other teams and IT users Help developers regain productivity and quality of life by doing what they do best: coding

In this webinar, you will discover: How Real User Measurement delivers greater insight about your customers’ online interactions and takes the guesswork out of performance management testing Why Real Time Monitoring can tell you what is possible and help focus on delivering against key business metrics How mPulse can help set accurate goals based on how fast your website should be to meet end users expectations and demands

- Melinda Lini and Felipe Kaufmann strive to make users' lives easier through digital tools. - They discuss the rise of mobile usage and the need for responsive web design to adapt content for various screen sizes. - The key principles of responsive design are to use a fluid grid system, media queries for breakpoints, and progressive enhancement.

- The document describes the functional description and operation of DDR4 SDRAM devices. It provides a simplified state diagram showing the various states of the device and commands to transition between states. It also describes initialization procedures, mode registers, command descriptions and timings. - Sections are included on on-die termination, read/write operations and timings, refresh commands, self-refresh operation, power down modes, and other features like write leveling, calibration commands, and error handling mechanisms. - The document also provides descriptions of 3D stacked DRAM functionality, commands, and operation that are similar but have some differences compared to planar DDR4 devices.

SaltConf 2014 keynote - Thomas Jackson, LinkedIn Safety with Power tools As infrastructure scales, simple tasks become increasingly difficult. For large infrastructures to be manageable, we use automation. But automation, like any power tool, comes with its own set of risks and challenges. Automation should be handled like production code, and great care should be exercised with power tools. This talk will cover how SaltStack is used at LinkedIn and offer tips and tricks for automating management with SaltStack at massive scale including a look at LinkedIn-inspired Salt features such as blacklist and pre-req states. It will also cover Salt master and minion instrumentation and a compilation of how not to use Salt.

Modulo Pi designs next generation media servers that are intuitive, user-friendly, and fully integrated. They offer two solutions: Modulo Player, ideal for everyday projects with easy setup and reliable performance, and Modulo Kinetic, equipped with advanced tools for demanding productions through an integrated ecosystem providing flexibility, productivity and performance.

This document discusses techniques for improving the performance of D3 visualizations. It begins with an overview of D3 and some basic tutorials. It then describes issues with performance for force-directed layouts and edge-bundled layouts as the number of nodes and links increases. Solutions proposed include using canvas instead of SVG for rendering, reducing unnecessary calculations, and caching repeated drawing states. The document concludes that the number of DOM nodes has major performance implications and techniques like canvas can help when exact mouse interactions are not required.

There’s no such thing as fast enough. You can always make your website faster. This talk will show you how. The very first requirement of a great user experience is actually getting the bytes of that experience to the user before they they get tired and leave.In this talk we’ll start with the basics and get progressively insane. We’ll go over several frontend performance best practices, a few anti-patterns, the reasoning behind the rules, and how they’ve changed over the years. We’ll also look at some great tools to help you.

Frontend Performance Beginner to Expert to Crazy Person The very first requirement of a great user experience is actually getting the bytes of that experience to the user before they they get tired and leave. In this talk we'll start with the basics and get progressively insane. We'll go over several frontend performance best practices, a few anti-patterns, the reasoning behind the rules, and how they've changed over the years. We'll also look at some great tools to help you. La performance front-end de débutant, à expert, à fou furieux ! La toute première condition nécessaire à une bonne expérience utilisateur est de pouvoir obtenir les octets de cette expérience avant que l'utilisateur ne se lasse et parte. Nous débuterons cette conférence avec les bases pour progressivement devenir démentiel. Nous aborderons plusieurs des meilleurs pratiques de la performance front-end, quelques anti-patterns à éviter, le raisonnement derrière les règles, et comment ces dernières ont changé au fil des ans. Nous regarderons d'un peu plus près quelques très bon outils qui peuvent vous aider.

The document outlines steps for front-end performance optimization, beginning with basic techniques like caching, compression and domain sharing and progressing to more advanced strategies involving preloading, parallel downloads, and predicting response times. It was presented by Philip Tellis at WebPerfDays New York and includes references for further reading on topics like CDNs, TCP tuning, and the page visibility API.

RUM isn’t just for page level metrics anymore. Thanks to modern browser updates and new techniques we can collect real user data at the object level, finding slow page components and keeping third parties honest. In this talk we will show you how to use Resource Timing, User Timing, and other browser tricks to time the most important components in your page. We’ll also share recipes for several of the web’s most popular third parties. This will give you a head start on measuring object level performance on your own site.

The document outlines steps web performance experts take to optimize frontend performance, moving from beginner to advanced techniques. It starts with basic optimizations like enabling gzip, caching, and image optimization. It then discusses more advanced strategies like using a CDN, splitting JavaScript, auditing CSS, and parallelizing downloads. Finally it discusses very advanced techniques like pre-loading assets, detecting broken Accept-Encoding headers, and understanding how to optimize for HTTP/2. The document provides references for further information on each topic.

The document discusses front-end web performance optimization from beginner to expert levels. At the beginner level, it recommends starting with basic optimizations like measuring performance, enabling gzip compression, optimizing images, and caching. At the expert level, it discusses more advanced techniques like using a CDN, splitting JavaScript files, auditing CSS, and flushing content early. Finally, it outlines "crazy" optimizations like pre-loading assets, post-load fetching, and understanding round-trip network latency.

Boston Web Performance Meetup, April 22, 2014 The very first requirement of a great user experience is actually getting the bytes of that experience to the user before they they get fed up and leave. In this talk we'll start with the basics and get progressively insane. We'll go over several front-end performance best practices, a few anti-patterns, the reasoning behind the rules, and how they've changed over the years. We'll also look at some great tools to help you. Schedule: 6:30, pizza 7:15: talk

The very first requirement of a great user experience is actually getting the bytes of that experience to the user before they they get fed up and leave. In this talk we'll start with the basics and get progressively insane. We'll go over several frontend performance best practices, a few anti-patterns, the reasoning behind the rules, and how they've changed over the years. We'll also look at some great tools to help you.

The document appears to be a presentation on measuring real user experiences using Real User Monitoring (RUM) and analyzing the data. It discusses using RUM tools like Boomerang to collect data on user behavior and performance in real-time. The presentation then examines specific metrics collected like user patience, cache behavior, and how quickly new software versions are distributed based on the RUM data.

This document discusses using <IFRAME> tags to improve the performance of third party scripts. It describes how third party scripts normally block page loading and proposes using an iframe to load scripts asynchronously in parallel without blocking. It provides code for creating an iframe targeted to load scripts, handling cross-domain issues, and modifying the Method Queue Pattern to support iframes. The approach allows third party scripts to load without blocking the main page load.

The document is a presentation about abusing JavaScript to measure web performance. It discusses using JavaScript to measure network latency, TCP handshake time, network throughput, DNS lookup time, IPv6 support and latency, and other performance metrics. It provides code examples for measuring each metric in JavaScript and notes challenges to consider. The presentation encourages the use of the open source Boomerang library for accurate performance measurement.

If you're interested in measuring real user web performance, you'll find tools like boomerang or episodes quite handy. Some popular web frameworks even have modules that make it easy to add them to your site. However, what does one do once one has collected the data? How do you filter out the noise and get meaningful insights from the data? In this talk, I'll go over the techniques we've picked up by analyzing millions of datapoints daily. I'll cover some simple rules to filter out invalid data, and the statistics to analyze and make sense of what's left. Do you use the mean, median or mode? What about the geometric mean and standard deviation? How confident are we in the results? And finally, why should we care? This talk should help you gain useful insights from a histogram, or at the very least point you in the right direction for further analysis.

While building boomerang, we developed many interesting methods to measure network performance characteristics using JavaScript running in the browser. While the W3C's NavigationTiming API provides access to many performance metrics, there's far more you can get at with some creative tweaking and analysis of how the browser reacts to certain requests. In this talk, I'll go into the details of how boomerang works to measure network throughput, latency, TCP connect time, DNS time and IPv6 connectivity. I'll also touch upon some of the other performance related browser APIs we use to gather useful information. I will NOT be covering the W3C Navigation Timing API since that's been covered by Alois Reitbauer in a previous Boston Web Perf talk.

The document discusses analyzing real user monitoring (RUM) data to gain insights into website performance and user behavior. It describes building plugins to collect navigation and timing data from browsers. Various statistical techniques for analyzing the data are covered, including log-normal distributions, filtering outliers, sampling, and correlating metrics like page load time and bounce rates. The analysis of an example 8 million page dataset suggests very fast or slow page loads are associated with higher bounce rates, and thresholds for user-unfriendly performance are proposed based on bounce rates exceeding 50%.

This document contains slides from a presentation about using JavaScript to analyze network performance. It discusses how to measure latency, TCP handshake time, network throughput, DNS lookup time, IPv6 support and latency, and private network scanning using JavaScript. Code examples are provided for measuring each of these network metrics by making image requests and timing the responses. The presentation emphasizes that accurately measuring network throughput requires requesting resources of different sizes and accounting for TCP slow start. It also notes some challenges around caching and geo-located DNS results.

This document is a presentation about analyzing web traffic using Node.js modules. It introduces Node.js and the npm package manager. It then discusses modules for parsing HTTP logs, including parsing user agents, handling IP addresses, geolocation, and date formatting. It also covers modules for statistical analysis like fast-stats, gauss, and statsd. The presentation provides code examples for using these modules and takes questions at the end.

The document discusses input validation and output encoding to prevent vulnerabilities like XSS and SQL injection. It provides examples of how unexpected input can enable attacks, like special characters or invalid data types being passed to endpoints and rendered unencoded. The key lessons are that input validation is needed to receive clean, expected data, while output encoding is crucial to prevent exploits when displaying data to users. Both techniques are important defenses that address different but related issues.

This document discusses using JavaScript to analyze network performance. It covers measuring latency, TCP handshake time, DNS lookup time, network throughput, and IPv6 support. The document provides code examples for measuring each of these metrics using JavaScript and analyzing image load times. It notes that network conditions vary and accurate measurements require statistical analysis over many samples.

This document discusses how the Boomerang tool works to measure website performance from the end user's perspective. Boomerang is a piece of JavaScript code that measures network latency and throughput to the website, as well as page load time, and sends this performance data back to the website owners. It provides more accurate real-world performance metrics than lab testing by measuring performance across varying user devices, browsers, networks and other conditions that are outside the owners' control.

If you’ve ever had to analyze a map or GPS data, chances are you’ve encountered and even worked with coordinate systems. As historical data continually updates through GPS, understanding coordinate systems is increasingly crucial. However, not everyone knows why they exist or how to effectively use them for data-driven insights. During this webinar, you’ll learn exactly what coordinate systems are and how you can use FME to maintain and transform your data’s coordinate systems in an easy-to-digest way, accurately representing the geographical space that it exists within. During this webinar, you will have the chance to: - Enhance Your Understanding: Gain a clear overview of what coordinate systems are and their value - Learn Practical Applications: Why we need datams and projections, plus units between coordinate systems - Maximize with FME: Understand how FME handles coordinate systems, including a brief summary of the 3 main reprojectors - Custom Coordinate Systems: Learn how to work with FME and coordinate systems beyond what is natively supported - Look Ahead: Gain insights into where FME is headed with coordinate systems in the future Don’t miss the opportunity to improve the value you receive from your coordinate system data, ultimately allowing you to streamline your data analysis and maximize your time. See you there!

As a popular open-source library for analytics engineering, dbt is often used in combination with Airflow. Orchestrating and executing dbt models as DAGs ensures an additional layer of control over tasks, observability, and provides a reliable, scalable environment to run dbt models. This webinar will cover a step-by-step guide to Cosmos, an open source package from Astronomer that helps you easily run your dbt Core projects as Airflow DAGs and Task Groups, all with just a few lines of code. We’ll walk through: - Standard ways of running dbt (and when to utilize other methods) - How Cosmos can be used to run and visualize your dbt projects in Airflow - Common challenges and how to address them, including performance, dependency conflicts, and more - How running dbt projects in Airflow helps with cost optimization Webinar given on 9 July 2024