2020

The Fastest Google Fonts

CSS Wizardry

* The Wiz: [link] 200518_2J_70c5f6c1c92a1cd436e525ac2b895f51 200518_AY_290d20f93c0e4b469e0bbe60a63f678e 200518_8F_49cb76e22485f51fad729e085a8bd08e 200518_4W_7d70995268b4aa4f495304063d449ae3&thumbSize=150&ival=100&end=all * harry.is: [link] --> For the most part, web fonts nowadays are faster than ever. With more standardised FOUT/FOIT behaviour from browser vendors, to the newer font-display specification, performance—and therefore the user—seems to have been finally been put front-and-centre.

Google 219

Reducing Your Database Hosting Costs: DigitalOcean vs. AWS vs. Azure

Scalegrid

If you’re hosting your databases in the cloud, choosing the right cloud service provider is a significant decision to make for your long-term hosting costs. This is especially apparent in today’s world where organizations are doing whatever they can to optimize and reduce their costs. Over the last few weeks, we have been inundated with requests from SMB customers looking to improve the ROI on their database hosting.

Azure 207

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Stuff The Internet Says On Scalability For Sep 18th, 2020

High Scalability

Hey, it's HighScalability time! I can't wait for the duel. Just don't shoot into the air. Do you like this sort of Stuff? Without your support on Patreon this kind of Stuff won't happen. Know someone who could benefit from becoming one with the cloud? Of course you do.

Optimized shot-based encodes for 4K: Now streaming!

The Netflix TechBlog

by Aditya Mavlankar , Liwei Guo , Anush Moorthy and Anne Aaron Netflix has an ever-expanding collection of titles which customers can enjoy in 4K resolution with a suitable device and subscription plan.

Dynatrace launches automatic end-to-end observability via traces for AWS Lambda (Preview program)

Dynatrace

Dynatrace news. We’ve worked closely with our partner AWS to deliver a complete, end-to-end picture of your cloud environment that includes monitoring support for all AWS services.

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Performance Testing with Open Source Tools – Myths and Reality

Alex Podelko

Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. While Federico definitely has good points there, there is some truth in these myths too. Otherwise we wouldn’t see so many commercial tools built on the top of open source including BlazeMeter (it is ironic that the article is posted on the BlazeMeter site), Flood, and OctoPerf.

Most Practical Selenium WebDriver Tutorial With Examples

DZone

Selenium is one of the most widely used automation frameworks for web-application testing. It automates browser testing and eases redundant test efforts for the QA Community. Most of the organizations are switching to using Selenium to automate their test suites which are often run regularly.

More Trending

How to Estimate Web Performance Impact Before Making Fixes

Jos

Web Performance is important for user experience and business metrics. Estimating its impact is key to be able to prioritize it, yet it’s difficult to quantify its benefits until the work has been done. We need to break this chicken-and-egg loop. This post explains several ways of assessing the potential performance gains with little effort and, more importantly, without actually implementing fixes. What is the business opportunity for web performance improvements?

Fundamentals of table expressions, Part 7 – CTEs, optimization considerations

SQL Performance

This article is the 7th part of a series about named table expressions. In Part 5 and Part 6 I covered the conceptual aspects of common table expressions (CTEs). This month and next my focus turns to optimization considerations of CTEs.

C++ 108

content-visibility: the new CSS property that boosts your rendering performance

CSS - Tricks

Una Kravets and Vladimir Levin: […] you can use another CSS property called content-visibility to apply the needed containment automatically. content-visibility ensures that you get the largest performance gains the browser can provide with minimal effort from you as a developer.

Real-World Effectiveness of Brotli

CSS Wizardry

One of the more fundamental rules of building fast websites is to optimise your assets, and where text content such as HTML, CSS, and JS are concerned, we’re talking about compression. The de facto text-compression of the web is Gzip, with around 80% of compressed responses favouring that algorithm, and the remaining 20% use the much newer Brotli.

Important Health Checks for your MySQL Master-Slave Servers

Scalegrid

In a MySQL master-slave high availability (HA) setup, it is important to continuously monitor the health of the master and slave servers so you can detect potential issues and take corrective actions. In this blog post, we explain some basic health checks you can do on your MySQL master and slave nodes to ensure your setup is healthy.

A Short on How Zoom Works

High Scalability

Zoom scaled from 20 million to 300 million users virtually over night. What's incredible is from the outside they've shown little in the way of apparent growing pains, though on the inside it's a good bet a lot of craziness is going on. Sure, Zoom has made some design decisions that made sense as a small spunky startup that don't make a lot of sense as a defacto standard, but that's to be expected. It's not a sign of bad architecture as many have suggested.

Edgar: Solving Mysteries Faster with Observability

The Netflix TechBlog

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. by Elizabeth Carretto Everyone loves Unsolved Mysteries. There’s always someone who seems like the surefire culprit.

Dynatrace wins AI Breakthrough Award for Davis AI engine

Dynatrace

Dynatrace news. Today, the AI Breakthrough Awards announced its 2020 winners , recognizing the leading AI innovators and solutions.

The case for a learned sorting algorithm

The Morning Paper

The case for a learned sorting algorithm , Kristo, Vaidya, et al., SIGMOD’20. We’ve watched machine learning thoroughly pervade the web giants , make serious headway in large consumer companies , and begin its push into the traditional enterprise.

Cache 101

Is Python the Future of Programming?

DZone

Python might not have bright years in the past years (which is mainly launch in the year 1991) but it has seen a continuous and amazing trend of growth in the 21st century. This stack overflow graph of major programming languages’ growth exclusively depicts the steady progress of the PYTHON!

Emulate vision deficiencies in DevTools

Addy Osmani

Emulate vision deficiencies in to see how users who experience color blindness or blurred vision might see your site

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Reinventing virtualization with the AWS Nitro System

All Things Distributed

Running a business at the scale of Amazon, we often have to solve problems that no other company has faced before. The disadvantage of this is that there is no “how to” guide for us—a lot is unknown.

Please stop using this UPSERT anti-pattern

SQL Performance

I think everyone already knows my opinions about MERGE and why I stay away from it. But here's another (anti-)pattern I see all over the place when people want to perform an upsert (update a row if it exists and insert it if it doesn't): IF EXISTS ( SELECT 1 FROM dbo.

Performing a Load Test on SQL Server using Apache JMeter

SQL Shack

In this article, we will learn how to use Apache JMeter to perform a load test on SQL Server.

Performance Budgets, Pragmatically

CSS Wizardry

One of the key tools that performance engineers have at their disposal is the Performance Budget: it helps us—or, more importantly, our clients—ensure that any performance-focused work is monitored and maintained after we’ve gone. By establishing an acceptable threshold, be that based on RUM data, bundle analysis, image weight, milestone timings, or any other suitable metric, we can be sure that new or unrelated bodies of work do not have a detrimental impact on the performance of our site.

What is Greenplum Database? Intro to the Big Data Database

Scalegrid

Greenplum Database is a massively parallel processing (MPP) SQL database that is built and based on PostgreSQL. It can scale towards a multi-petabyte level data workload without a single issue, and it allows access to a cluster of powerful servers that will work together within a single SQL interface where you can view all of the data. In this blog post, we explain what Greenplum is, and break down the Greenplum architecture, advantages, major use cases, and how to get started.

One Team at Uber is Moving from Microservices to Macroservices

High Scalability

There may be an undiscovered tribe deep in some jungle somewhere that hasn’t made up their mind on microservices, but I doubt it. People love microservices or love to hate microservices. There’s not much in between. So it means something when even a team at a company like Uber announces a change away from microservices to something else. Macroservices. But we’ll get to that. Think what you want about Uber the company, but from a software perspective Uber has been a good citizen.

Computational Causal Inference at Netflix

The Netflix TechBlog

Jeffrey Wong , Colin McFarland Every Netflix data scientist, whether their background is from biology, psychology, physics, economics, math, statistics, or biostatistics, has made meaningful contributions to the way Netflix analyzes causal effects.

AI-powered DNS request tracking extends infrastructure observability for high quality network traffic

Dynatrace

Dynatrace news. Have you ever received a call from a customer telling you that an application you’re providing is too slow?

Orbital edge computing: nano satellite constellations as a new class of computer system

The Morning Paper

Orbital edge computing: nanosatellite constellations as a new class of computer system , Denby & Lucia, ASPLOS’20. Last time out we looked at the real-world deployment of 5G networks and noted the affinity between 5G and edge computing.

7 Different Types of Game Testing Techniques

DZone

The global gaming industry is expected to reach more than $300 billion by 2025 with the growth of revolutionary offerings, like cloud gaming and mobile gaming, according to a new report from GlobalData.

Games 219

Visualize Data Structures in VSCode

Addy Osmani

VSCode Debug Visualizer is a VSCode extension that allows you to visualize data structures in your editor

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The Easy Ones – Three Bugs Hiding in the Open

Randon ASCII

I write a lot about investigations into tricky bugs – CPU defects , kernel bugs , transient 4-GB memory allocations – but most bugs are not that esoteric.

Code 94

Fundamentals of table expressions, Part 6 – Recursive CTEs

SQL Performance

This article is the sixth part in a series about table expressions. Last month in Part 5 I covered the logical treatment of nonrecursive CTEs. This month I cover the logical treatment of recursive CTEs.

C++ 103

Make the most of secondary replicas in SQL Server Always On Availability Groups

SQL Shack

In this 31st article of the SQL Server Always On Availability Group series, we will explore how you can use the secondary replica SQL database for your workloads. Introduction In a SQL Server Always On Availability Group, we configure two or more instances for high availability and disaster recovery.

From Heavy Metal to Irrational Exuberance

ACM Sigarch

The focus of most published research in architecture is on applications implemented in high-performance, “ close-to-the-metal” languages essentially developed before computers got fast.

C++ 84

PostgreSQL Connection Pooling: Part 4 – PgBouncer vs. Pgpool-II

Scalegrid

In our previous posts in this series, we spoke at length about using PgBouncer and Pgpool-II , the connection pool architecture and pros and cons of leveraging one for your PostgreSQL deployment.

Reducing Your Database Hosting Costs: DigitalOcean vs. AWS vs. Azure

High Scalability

If you’re hosting your databases in the cloud, choosing the right cloud service provider is a significant decision to make for your long-term hosting costs. This is especially apparent in today's world where organizations are doing whatever they can to optimize and reduce their costs. Over the last few weeks, we have been inundated with requests from SMB customers looking to improve the ROI on their database hosting.

Azure 207

Seamlessly Swapping the API backend of the Netflix Android app

The Netflix TechBlog

How we migrated our Android endpoints out of a monolith into a new microservice by Rohan Dhruva , Ed Ballot As Android developers, we usually have the luxury of treating our backends as magic boxes running in the cloud, faithfully returning us JSON.

Dynatrace continues to grow and opens new development Lab in Vienna

Dynatrace

Dynatrace news. Founded in Linz, Austria, Dynatrace now has more than 50 offices around the world and is continuing to grow. With this growth, a new global R&D headquarters was opened in Linz in late 2019.