DZone
APRIL 22, 2019
In my last post , I talked about building a structured path to production, which tests to include, when to do them, and why. In this post, we’ll get into exactly how to do each kind of test. We’ll cover the techniques of mocking and stubbing and test-driven development to help each testing layer. First, let’s review a concept from the previous post: the test pyramid.
CSS - Tricks
APRIL 2, 2019
Jake Archibald looks at the websites of Formula One race teams and rates their performance, carefully examining their images and digging into the waterfall of assets for each site: Trying to use a site while on poor connectivity is massively frustrating, so anything sites can do to make it less of a problem is a huge win. In terms of the device, if you look outside the tech bubble, a lot of users can't or don't want to pay for a high-end phone.
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TechBeacon Testing
APRIL 25, 2019
Your test code is a mess. You're not quite sure where anything is anymore. The fragility of it is causing your builds to fail. You're hesitant to make any changes for fear of breaking something else. The bottom line is that your tests do not spark joy, as organizing guru Marie Kondo would say.
MachMetrics
APRIL 24, 2019
All of the popular speed testing tools typically provide a page speed score along with their objective results. Google PageSpeed Insights has a their “Speed Score.” Pingdom has a “Performance Grade.” WebPageTest has their five A-F grades. While these do have a purpose, most people use them incorrectly, in a way that can be dangerous to your real site speed.
The Netflix TechBlog
APRIL 29, 2019
By Pythonistas at Netflix, coordinated by Amjith Ramanujam and edited by Ellen Livengood As many of us prepare to go to PyCon, we wanted to share a sampling of how Python is used at Netflix. We use Python through the full content lifecycle, from deciding which content to fund all the way to operating the CDN that serves the final video to 148 million members.
High Scalability
APRIL 8, 2019
This is a guest post by Hugues Alary , Lead Engineer at Betabrand , a retail clothing company and crowdfunding platform, based in San Francisco. This article was originally published here. Early infrastructure. VPS. Rackspace. OVH. Hardware infrastructure. The scalability and maintainability issue. Scaling development processes. The advent of Docker.
DZone
APRIL 21, 2019
Garbage collection is the mechanism by which the JVM reclaims memory on behalf of the application when it's no longer needed. At a high level, it consists of finding objects that are no longer in use, freeing the memory associated with those objects, and occasionally compacting the heap to prevent memory fragmentation. The garbage collector performs it's work using one or more threads.
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
Scalegrid
APRIL 2, 2019
PostgreSQL is an open source relational database system that has soared in popularity over the past 30 years from its active, loyal, and growing community. For the 2nd year in a row, PostgreSQL has kept the title of #1 fastest growing database in the world according to the DBMS of the Year report by the experts at DB-Engines. So what makes PostgreSQL so special, and how is it being used today?
All Things Distributed
APRIL 24, 2019
Today, I am happy to introduce the new AWS Asia Pacific ( Hong Kong ) Region. AWS customers can now use this Region to serve their end users in Hong Kong SAR at a lower latency, and to comply with any data locality requirements. The AWS Asia Pacific (Hong Kong) Region is the eighth active AWS Region in Asia Pacific and mainland China along with Beijing, Mumbai, Ningxia, Seoul, Singapore, Sydney, and Tokyo.
The Netflix TechBlog
APRIL 17, 2019
by Andrey Norkin, Joel Sole, Kyle Swanson, Mariana Afonso, Anush Moorthy, Anne Aaron Netflix Headquarters, Winchester Circle. Netflix headquarters circa 2014. It’s a nice building with good architecture! This was the primary home of Netflix for a number of years during the company’s growth, but at some point Netflix had outgrown its home and needed more space.
High Scalability
APRIL 3, 2019
PostgreSQL is an open source object-relational database system that has soared in popularity over the past 30 years from its active, loyal, and growing community. For the 2nd year in a row, PostgreSQL has kept the title of #1 fastest growing database in the world according to the DBMS of the Year report by the experts at DB-Engines. So what makes PostgreSQL so special, and how is it being used today?
DZone
APRIL 19, 2019
Network monitoring, at scale, is an age-old problem in IT. In this post, I’ll discuss a brief history of network monitoring tools — including the pain points of legacy technology when it came to monitoring thousands of devices — and share my modern-day solution using Sensu Go and Ansible. Then: Nagios and Multiple Network Monitoring Tools. I’ve spent the last ten years as a consultant for open-source monitoring architectures.
Dynatrace
APRIL 17, 2019
Dynatrace news. If you hadn’t already heard the news, the entire Dynatrace team is immensely proud to once again been positioned as a Leader in the Gartner 2019 Magic Quadrant for Application Performance Monitoring (APM). But this year is a little different, and very special, because we made history. Not only were we named a Leader, but Dynatrace has been recognized for highest for ability to execute and furthest for completeness of vision in APM Magic Quadrant.
Simform
APRIL 22, 2019
Performance-related problems in the web app are not new. Developers have been encountering these issues since a longer period of time. When any new language originates, developers are bound to face performance issues with it. React is one such example of language. The post React Performance – A Definitive Guide to React js Performance Optimization appeared first on Insights on Latest Software Technologies - Simform Blog.
All Things Distributed
APRIL 3, 2019
Today, I am excited to announce our plans to open a new AWS Region in Indonesia! The new AWS Asia Pacific (Jakarta) Region will be composed of three Availability Zones, and will give AWS customers and partners the ability to run workloads and store data in Indonesia. The AWS Asia Pacific (Jakarta) Region will be our ninth Region in Asia Pacific. It joins existing Regions in Beijing, Mumbai, Ningxia, Seoul, Singapore, Sydney, and Tokyo, as well as an upcoming Region in Hong Kong SAR.
Smashing Magazine
APRIL 17, 2019
Optimizing Performance With Resource Hints. Optimizing Performance With Resource Hints. Drew McLellan. 2019-04-17T12:30:16+02:00. 2019-04-29T18:34:58+00:00. Modern web browsers use all sorts of techniques to help improve page load performance by guessing what the user may be likely to do next. The browser doesn’t know much about our site or application as a whole, though, and often the best insights about what a user may be likely to do come from us, the developer.
High Scalability
APRIL 16, 2019
In this three-part blog series, we introduced a High Availability (HA) Framework for MySQL hosting in Part I, and discussed the details of MySQL semisynchronous replication in Part II. Now in Part III, we review how the framework handles some of the important MySQL failure scenarios and recovers to ensure high availability. MySQL Failover Scenarios.
DZone
APRIL 18, 2019
This article provides the implementation of a web crawling system called Mowglee that uses geography as the main classifying criteria for crawling. Also, it runs in a multi-threaded mode that provides a default implementation of the robots exclusion protocol, sitemap generation, data classifiers, data analyzers, and a general framework for application to be built of a web crawler.
Dynatrace
APRIL 24, 2019
Dynatrace news. Dynatrace provides automated end to end monitoring of applications under a single platform. Even if this is true, in practise there is only so much the one Agent can Autodiscover and fine tuning might be required. For instance, not all deployments follow best practise. I have worked with many customers and I found that in most cases, 90% of what was mapped automatically was fine however the remaining 10% needed fine tuning due to bad deployment practises.
The Polyglot Developer
APRIL 24, 2019
Dart is a programming language developed by Google and made popular by Flutter , their mobile development framework for cross-platform application development. The Dart language is a general-purpose language , built to be used for far more than just mobile development, and, in this short tutorial, I will show you how to build a basic web application, using Dart.
Addy Osmani
APRIL 6, 2019
In this post, we'll look at the new loading attribute which brings native and lazy-loading to the web!
Randon ASCII
APRIL 21, 2019
So many possible introductions to this one: Windows 7: Sheesh, I sure am slow at creating processes. Windows 10: Hold my beer…. Or how about: A) How long does CreateProcess take on Windows? B) How long would you like it to take? A) You mean you can make it as fast as I want? B) No, I can make it as *slow* as you want. O(n^2) algorithms that should be linear are the best.
The Morning Paper
APRIL 7, 2019
How bad can it git? Characterizing secret leakage in public GitHub repositories Meli et al., NDSS’19. On the one hand you might say there’s no new news here. We know that developers shouldn’t commit secrets, and we know that secrets leaked to GitHub can be discovered and exploited very quickly. On the other hand, this study goes much deeper, and also provides us with some very actionable information. …we go far beyond noting that leakage occurs, providing a conservative longitudinal
DZone
APRIL 25, 2019
With the latest cross-cutting concerns podcast , Matt and I discuss the StackOverflow Developer Survey 2019 results. In the podcast, I mentioned how developers said companies don't implement unit testing but that developers see the value of it. This is good news for the industry: developers see value in unit tests. This survey is proof of that, but there are some developers who still may not see it.
Dynatrace
APRIL 30, 2019
Dynatrace news. Validating Deployments still seems to be a semi-automated task for most software delivery teams. Why do I say that? Because we analyzed the results of our Autonomous Cloud Survey and sat down with a handful of these companies that provided answers to questions such as: What’s your Commit Cycle Time? or What’s your Maturity of Delivery Automation?
QAMentor
APRIL 1, 2019
In today’s broad digital landscape, web app penetration testing is considered as one of the most important parts of a company’s vulnerability management program. Conducting a web app penetration test not only requires expertise, but it also needs a significant amount of time. In this age of steadily increasing cyber attacks, it has become essential … The post How to Perform First Web App Penetration Testing?
The Polyglot Developer
APRIL 17, 2019
When it comes to client and server communication, there are quite a few approaches towards solving the problem. You could create a RESTful API or GraphQL API on your server and consume it on-demand with your client, or you can go the socket approach and interact in real-time through events. There isn’t a wrong way to do things, but some ways are better than others given the task at hand.
KeyCDN
APRIL 25, 2019
Creating an intuitive application or website takes time. What may seem intuitive to one person may not be to the next. Developers often improve the usability of their application or website through trial and error as well as user feedback. What your users are saying about your product is very important because without them the business can’t survive.
SQL Performance
APRIL 10, 2019
The ISO/IEC 9075:2016 standard, or SQL:2016 in short, introduces support for a profound concept called Row Pattern Recognition (RPR) in SQL. I posted a suggestion to improve SQL Server by adding support for RPR in T-SQL , but I was quite limited in the space that I had to provide the feedback. The purpose of this article is to provide more details about the proposal, and hopefully you will be convinced of its importance and add your vote.
DZone
APRIL 18, 2019
Recently, we started digging into Reddit, and there we found many very useful threads for testers. While I was going through some of the links, I found this Reddit thread which was talking about tools for testers and I found it pretty interesting, so we decided to make a list for you by compiling all the utility tools for the testers. Let’s have a quick look at this.
Dynatrace
APRIL 18, 2019
Dynatrace news. Dynatrace has made it easier for you and your web performance-optimization engineers to access Visually complete metric findings for each page-load that is captured with Dynatrace Real User Monitoring. Visually complete measurements are easy to understand—they measure the amount of time it takes for the visible portion of a web application to fully render on your end-users’ device screens.
Simform
APRIL 15, 2019
It’s natural to make mistakes during design and coding in software development. These mistakes are addressed via the feedback. TDD provides that feedback immediately to resolve the bug. If a bug lives for less than a few minutes, is it really a bug? No, it’s a prevented bug. The post What is TDD? [Roadmap to Implement TDD in Your Organization] appeared first on Insights on Latest Software Technologies - Simform Blog.
Tasktop
APRIL 30, 2019
On a daily basis, we help our customers with connecting various SDLC tools, so that they can use best of breed tools and still communicate clearly with each other. After attending the Atlassian Summit, I noticed an interesting pattern that was common among some of the people who walked by our booth. What I learned is that sometimes we don’t even have to look past Jira to find a need for integration.
Edge Perspectives
APRIL 21, 2019
Paradox is everywhere We just have to see it But first we must look And want to see But we don’t. We crave understanding And simplicity. Paradox makes us uncomfortable. We want order And harmony. And paradox challenges that. We push paradox Out of sight. But if we’re driven to learn, Paradox has powerful pull. Paradox can propel us To new levels. It invites us to explore And challenges our beliefs.
SQL Performance
APRIL 23, 2019
Introduction. In SQL Server 2012, grouped (vector) aggregation was able to use parallel batch-mode execution, but only for the partial (per-thread) aggregate. The associated global aggregate always ran in row mode, after a Repartition Streams exchange. SQL Server 2014 added the ability to perform parallel batch-mode grouped aggregation within a single Hash Match Aggregate operator.
DZone
APRIL 22, 2019
Sometimes, when you are performing unit or integration tests whilst developing code, you need to be able to do something extreme, such as mangling a test database or two, repeatedly, each time subsequently restoring it to its original state before running the next test. Often, especially in integration tests when you are testing processes, you will need run a ‘setup’ process to establish a known database data state, then run the process, test that the final data state matches that which your bus
Dynatrace
APRIL 23, 2019
Dynatrace news. Effective communication between people has and will always be a challenge. There is always a chance for misunderstandings or talking in circles until you get to the answers you expect. With more AI (Artificial Intelligence) entering our lives (both in the personal and in the enterprise space) we need to make sure that we are not repeating the same issues.
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