Alex Podelko

JUNE 12, 2019

My post Good Times for Load Testing was published in 2014. It is difficult to believe that 5 years passed… Are times still good for load testing? Well, yes and no. I am not so upbeat as I was in 2014. If we speak about commercial load testing tools, we see rather a shrinking market and not too much innovation recently. If we speak about open source tools, we definitely see some improvement – but in many areas they are still behind the best commercial tools (yes, many may not need these adv

Testing 243

Testing Open Source Testing Tools Performance Testing 243

CSS Wizardry

AUGUST 7, 2019

I’m working on a client project at the moment and, as they’re an ecommerce site, there are a lot of facets of performance I’m keen to look into for them: load times are a good start, start render is key for customers who want to see information quickly (hint: that’s all of them), and client-specific metrics like how quickly did the key product image load?

Latency 271

Latency Ecommerce Servers Mobile 271

High Scalability

JANUARY 4, 2019

This post was written by Wendy Dessler of The Blog Frog. Database-as-a-Service (DBaaS) is quickly gaining in popularity across the tech world. These software platform solutions helps users easily manage their database operations without having to really understand any of the abstractions. This allows developers, DBA’s and DevOps engineers to quickly automate their backups, create new SQL and NoSQL clusters, and monitor the performance of their databases for their application without requir

DevOps 207

DevOps Database Development Scalability 207

Scalegrid

MARCH 4, 2019

Wondering which databases are trending in 2019? We asked hundreds of developers, engineers, software architects, dev teams, and IT leaders at DeveloperWeek to discover the current NoSQL vs. SQL usage, most popular databases, important metrics to track, and their most time-consuming database management tasks. Get the latest insights on MySQL , MongoDB , PostgreSQL , Redis , and many others to see which database management systems are most favored this year.

Database 255

Database Metrics Systems Strategy 255

The Netflix TechBlog

SEPTEMBER 10, 2019

Toby Mao , Sri Sri Perangur , Colin McFarland Another day, another custom script to analyze an A/B test. Maybe you’ve done this before and have an old script lying around. If it’s new, it’s probably going to take some time to set up, right? Not at Netflix. ABlaze: The standard view of analyses in the XP UI Suppose you’re running a new video encoding test and theorize that the two new encodes should reduce play delay, a metric describing how long it takes for a video to play after you press the s

Metrics 222

Metrics Architecture Infrastructure Innovation 222

DZone

JULY 26, 2019

Before we get into the tutorial hands-on, I would like to mention that this topic is not new. It has been covered in various helpful articles like the ones from TestAutomationGuru. The content which I am about to present has its custom favors and solves specific issues that I have encountered while working with this setup.

Infrastructure 271

Infrastructure AWS Testing Performance Testing 271

The Netflix TechBlog

MARCH 5, 2019

Netflix’s engineering culture is predicated on Freedom & Responsibility, the idea that everyone (and every team) at Netflix is entrusted with a core responsibility and they are free to operate with freedom to satisfy their mission. This freedom allows teams and individuals to move fast to deliver on innovation and feel responsible for quality and robustness of their delivery.

Infrastructure 186

Infrastructure Cloud Scalability AWS 186

O'Reilly Software

MAY 16, 2019

Microservices, serverless, AI, ML, and Kubernetes are among the most notable topics in our analysis of proposals from the O’Reilly Software Architecture Conference. The speaker proposals we receive for the O’Reilly Software Architecture Conference are valuable because they come from speakers who are often the leading names in their fields. These go-to experts and practitioners operate on the front lines of technology.

Software Architecture 104

Software Architecture Architecture Software Software 104

Smashing Magazine

JUNE 20, 2019

Optimizing Google Fonts Performance. Optimizing Google Fonts Performance. Danny Cooper. 2019-06-20T11:00:16+02:00. 2019-06-20T10:35:07+00:00. It’s fair to say Google Fonts are popular. As of writing, they have been viewed over 29 trillion times across the web and it’s easy to understand why — the collection gives you access to over 900 beautiful fonts you can use on your website for free.

Google 111

Google Performance Cache Website 111

ACM Sigarch

APRIL 8, 2019

Computer architecture is an important and exciting field of computer science, which enables many other fields (eg. big-data processing, machine learning, quantum computing, and so on). For those of us who pursued computer architecture as a career, this is well understood. However, we often hear anecdotes that the number of prospective graduate students applying to computer architecture/systems is small and shrinking.

Architecture 74

Architecture Open Source Hardware Software Engineering 74

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. We normally focus solely on the performance aspect, but today we want to dive into additional ways you can optimize images for the web. The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better.

Social Media 106

Social Media Media Google Website 106

CSS - Tricks

SEPTEMBER 16, 2019

Scott Jehl has written this wonderful piece about how 5G is on the horizon and how it could cause problems for users. But first, he starts by talking about the overwhelming positive news about it: [.] as it matures 5G is predicted to improve network speeds dramatically. Carriers are predicting download speeds in 2019 for anywhere from 100Mb to 1 Gbit per second on average.

Speed 84

Speed Network Traffic Mobile 84

Testlodge

FEBRUARY 6, 2019

It’s not uncommon to see a “Beta Release” of a product. But what does “beta” mean? And what about UAT… what’s that? We’ve talked a lot about different types of testing and we’ve also discussed the difference between alpha and beta testing in the past. There are a lot of them. In this article, we’re going to look at UAT and Beta Testing.

Testing 62

Testing Software Software Development 62

CSS Wizardry

MARCH 3, 2019

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all. To this end, having a solid caching strategy can make all the difference for your visitors. ?? How is your knowledge of caching and Cache-Control headers? — Harry Roberts (@csswizardry) 3 March, 2019.

Cache 266

Cache Latency Strategy Servers 266

Scalegrid

JUNE 11, 2019

Ready to transition from a commercial database to open source, and want to know which databases are most popular in 2019? Wondering whether an on-premise vs. public cloud vs. hybrid cloud infrastructure is best for your database strategy? Or, considering adding a new database to your application and want to see which combinations are most popular? We found all the answers you need at the Percona Live event last month, and broke down the insights into the following free trends reports: Top Databa

Open Source 55

Open Source Database Cloud Infrastructure 55

DZone

DECEMBER 9, 2019

Which language do you use for test automation? There is always a lot of uncertainty around which programming language to use when starting a new test automation project. Should you go with the same language that the development team is using? Or should you choose a language that has an abundance of community support so that you can easily get help when stuck?

Programming 363

Programming Healthcare Testing Cloud 363

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.

Open Source 280

Open Source Network Infrastructure Big Data 280

High Scalability

MARCH 4, 2019

How is software developed at Amazon? Get a couple of prime pizzas delivered and watch this excellent interview with Ken Exner, GM of AWS Developer Tools. It's notable Ken is from the tools group, because progress in an industry is almost always made possible by the development of better tools. The key themes from the talk: decomposition, automation, and organize around the customer.

Software 279

Software Software Development AWS 279

Daniel Lemire

FEBRUARY 8, 2019

Not all instructions on modern processors cost the same. Additions and subtractions are cheaper than multiplications which are themselves cheaper than divisions. For this reason, compilers frequently replace division instructions by multiplications. Roughly speaking, it works in this manner. Suppose that you want to divide a variable n by a constant d.

C++ 279

C++ Benchmarking Hardware Testing 279

Dynatrace

NOVEMBER 26, 2019

Dynatrace news. In today’s increasingly complex environments, it’s simply impossible for a human operator to manually follow the highly dynamic nature of transactions within microservices and serverless functions. Even the best baseline approaches come with a tiny percentage of false-positive alerts, the number being directly proportional to the number of components you’re monitoring.

Engineering 54

Engineering Serverless Metrics Code 54

Alex Podelko

AUGUST 18, 2019

Following up my post Are Times still Good for Load Testing? , I decided to answer multiple comments here separately. First, I’d like to elaborate on “It may be less need for simple load testing due to increased scale and sophistication of systems” I meant that the traditional way – testing the system before deploying in production using production-type workload – is not the only way anymore.

Performance Testing 243

Performance Testing Testing Performance Testing Tools 243

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.

AWS 163

AWS Latency Cloud Availability 163

DZone

NOVEMBER 21, 2019

It's time to automate you testing process! What Is Automated Testing? DZone Refcard: Automated Testing: Improving Application Speed and Quality — Learn more about mobile testing in Kotlin, go beyond what Selenium provides for web application testing, and take a deep dive into trends such as Behavioral-Driven Development and Visual Regression. Getting Started With Automated Testing by Jason Simon — A breakdown of all the information about Automated Testing into more digestible pieces to make it e

Testing 338

Testing Mobile Speed Processing 338

DZone

OCTOBER 29, 2019

DevOps and Site Reliability Engineering (SRE) both seem to rule the world of software development, and at the same time, both appear to overlap or confuse people to some extent. Today, we will try to analyze both terms and see if we can see some differentiating factors between the two. DevOps Engineer. The term "DevOps Engineer" strives to dim this divide between Dev and Ops conjointly and suggests that the best approach is to hire engineers who can be excellent coders as well as handl

DevOps 335

DevOps Engineering Software Software 335

DZone

NOVEMBER 25, 2019

Monitor and profile your Spring Boot application! You may also like: Monitoring Using Spring Boot 2.0, Prometheus, and Grafana (Part 1 — REST API). Monitoring is very essential for modern applications, modern applications are highly distributed in nature and have different dependencies like database, service, caching and many more. It’s more of a like service mesh, tracing and monitoring these services are very essential to adhere to SLA ( S ervice L evel A greement).

Monitoring 286

Monitoring Cache Metrics Database 286

DZone

JUNE 2, 2019

Almost every time I present RSocket to an audience, there will be someone asking the question: "How does RSocket compare to gRPC?" Today we are going to find out.

Benchmarking 279

Benchmarking Latency Java Scalability 279

DZone

SEPTEMBER 5, 2019

So, why should they hire you? Over the past decade, DevOps has emerged as a new tech culture and career that marries the rapid iteration desired by software development with the rock-solid stability of the infrastructure operations team. For system administrators, operations engineers, and others with strong systems and software backgrounds, there’s perhaps no better time than the present to transition into DevOps.

DevOps 277

DevOps Software Engineering Infrastructure Engineering 277

High Scalability

MARCH 6, 2019

Wondering which databases are trending in 2019 ? We asked hundreds of developers, engineers, software architects, dev teams, and IT leaders at DeveloperWeek to discover the current NoSQL vs. SQL usage, most popular databases, important metrics to track, and their most time-consuming database management tasks. Get the latest insights on MySQL , MongoDB , PostgreSQL , Redis , and many others to see which database management systems are most favored this year.

Database 278

Database Metrics Engineering Software 278

Scalegrid

AUGUST 22, 2019

In our previous blog posts, we discussed the capabilities and functioning of PostgreSQL Automatic Failover (PAF) by Cluster Labs and Replication Manager (repmgr) by 2ndQuadrant. In the final post of this series, we will review the last solution, Patroni by Zalando, and compare all three at the end so you can determine which high availability framework is best for your PostgreSQL hosting deployment.

Availability 277

Availability Servers Network Testing 277

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.

Tuning 277

Tuning Java Performance 277

Scalegrid

MAY 2, 2019

Python is a powerful and flexible programming language used by millions of developers around the world to build their applications. It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. So, what’s the best way to use MongoDB with Python?

Testing 55

Testing Network Database Servers 55

High Scalability

SEPTEMBER 3, 2019

Redis , short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009. Depending on how it is configured, Redis can act like a database, a cache or a message broker. It’s important to note that Redis is a NoSQL database system.

Open Source 55

Open Source Cache C++ Database 55

CSS Wizardry

MAY 31, 2019

One of the quickest wins—and one of the first things I recommend my clients do—to make websites faster can at first seem counter-intuitive: you should self-host all of your static assets, forgoing others’ CDNs/infrastructure. In this short and hopefully very straightforward post, I want to outline the disadvantages of hosting your static assets ‘off-site’, and the overwhelming benefits of hosting them on your own origin.

Cache 275

Cache Latency Infrastructure Website 275

The Netflix TechBlog

MAY 1, 2019

by Guillaume du Pontavice, Phill Williams and Kylee Peña (on behalf of our Streaming Algorithms, Audio Algorithms, and Creative Technologies teams) Remember the epic opening sequence of Stranger Things 2 ? The thrill of that car chase through Pittsburgh not only introduced a whole new set of mysteries, but it returned us to a beloved and dangerous world alongside Dustin, Lucas, Mike, Will and Eleven.

Engineering 274

Engineering Network Media Entertainment 274

Scalegrid

SEPTEMBER 16, 2019

PostgreSQL graphical user interface (GUI) tools help these open source database users to manage, manipulate, and visualize their data. In this post, we discuss the top 5 GUI tools for administering your PostgreSQL deployments. PostgreSQL is the fourth most popular database management system in the world, and heavily used in all sizes of applications from small to large.

Open Source 262

Open Source Database Azure Servers 262

The Netflix TechBlog

JUNE 4, 2019

By Benoit Rostykus, Gabriel Hartmann Noisy Neighbors We’ve all had noisy neighbors at one point in our life. Whether it’s at a cafe or through a wall of an apartment, it is always disruptive. The need for good manners in shared spaces turns out to be important not just for people, but for your Docker containers too. When you’re running in the cloud your containers are in a shared space; in particular they share the CPU’s memory hierarchy of the host instance.

Cache 260

Cache Latency Airlines Logistics 260

DZone

JULY 2, 2019

Quality assurance (QA) testing is an essential part of the software development process, involving the identification of bugs in products to ensure they are as error-free as possible. Unfortunately, there are also a lot of misconceptions about what QA testing and QA services actually entail. Today, many companies engage in software QA outsourcing , sometimes using offshore testing services, while some still keep their QA services in-house.

Testing 256

Testing Software Software Development 256