Alex Podelko

APRIL 18, 2021

MongoDB has the most advanced continuous performance testing I know about. MongoDB shared a lot of information on how we do performance testing and even open sourced some parts of it. Continuous performance testing is built on the top of Evergreen. 34 (2020), Performance Testing with David Daly , is another good introduction.

Performance Testing 182

Performance Testing Performance Testing Education 182

DZone

APRIL 17, 2023

I enjoy improving application performance. Yet, by rapidly performing countless such operations, computers enable us to enjoy video games, watch endless videos, explore the vast expanse of human knowledge and culture, and even unlock the secrets of the universe and life itself.

Performance 141

Performance Games Innovation Efficiency 141

DZone

MAY 8, 2023

In this series of simulating and troubleshooting performance problems in Scala, let’s discuss how to make threads go into a blocked state. A thread will enter into a blocked state when it cannot acquire a lock on an object because another thread already holds the lock on the same object and doesn’t release it.

Programming 152

Programming Performance 152

Alex Podelko

FEBRUARY 28, 2021

As I started to work for MongoDB, I started to get questions about MongoDB performance. We do have a lot of great resources that can help with MongoDB performance. First of all, it is MongoDB and Atlas documentation: Performance , Monitoring , and Query Optimization. Tips and Tricks for Query Performance: Let Us.explain() Them.

Performance 200

Performance IoT Education Best Practices 200

Dynatrace

NOVEMBER 30, 2023

Over the years, I have watched and written about online retail and e-commerce IT performance. Below is a Dynatrace honeycomb chart depicting the performance of the synthetics tests tracked by the Dynatrace Business Insights team. This had the effect of dramatically speeding up its performance and reducing support costs.

Retail 225

Retail Social Media Performance Benchmarking 225

DZone

NOVEMBER 11, 2019

Find out how to run video streaming performance tests! Using open-source tools to stress test video streaming at scale.

Performance Testing 100

Performance Testing Open Source Testing Performance 100

DZone

MARCH 16, 2023

In this latest article of the series about simulating and troubleshooting performance problems in Kotlin, let’s discuss how to make threads go into a BLOCKED state. A thread will enter into a BLOCKED state if it can’t acquire a lock on an object because another thread already holds the lock on the same object and doesn’t release it.

Programming 130

Programming Performance 130

Apica

JULY 1, 2022

And with streaming services increasing all the time, more and more providers are embracing technologies that allow them to provide video content through browsers and a variety of dedicated apps. DASH operates in a similar manner over HTTP, and both formats break videos up into chunks that are encoded at different levels of quality.

Internet 52

Internet Internet Latency Virtualization 52

Smashing Magazine

NOVEMBER 9, 2021

Automatically Transforming And Optimizing Images And Videos On Your WordPress Website. Automatically Transforming And Optimizing Images And Videos On Your WordPress Website. Indeed, reducing the size of the images is exceptionally important in order to improve the performance of the site. Leonardo Losoviz.

Website 103

Website Social Media Media Design 103

Abstracta

NOVEMBER 4, 2019

Using open source tools to stress test video streaming at scale In this post, I want to share something that we have been working on with BlazeMeter for. The post How to Run Video Streaming Performance Tests with the HLS Plugin for JMeter appeared first on Abstracta Software Testing Services.

Performance Testing 73

Performance Testing Testing Open Source Performance 73

n0derunner

AUGUST 10, 2020

A series of videos showing how to install, run, modify and analyze HCI clusters with the Nutanix X-ray tool How to Download and Install X-Ray to a Nutanix AHV Cluster How to modify an existing X-Ray workload to create your own HCI benchmark How to use the X-ray built-in comparison function to investigate performance of.

Benchmarking 52

Benchmarking Performance 52

Brendan Gregg

MARCH 8, 2020

Systems performance is an effective discipline for performance analysis and tuning, and can help you find performance wins for your applications and the kernel. However, most of us are not performance or kernel engineers, and have limited time to study this topic.

Systems 144

Systems Performance Benchmarking Tuning 144

Adrian Cockcroft

FEBRUARY 13, 2023

Sustainability at AWS re:Invent 2022 -All the talks and videos I could find… Las Vegas MSG Sphere under construction next door to the Venetian Sands Expo Center — Photo by Adrian This blog post is long overdue — I spent too long trying to find time to watch all the videos, and finally gave up and listed a few below that I haven’t seen.

AWS 64

AWS Energy Architecture Programming 64

Gtmetrix

AUGUST 25, 2022

We’ll show you how too much JavaScript impacts your page’s performance and how to address this issue. Think about the following: A slider/carousel that switches images every few seconds A video player that plays YouTube videos Embedded […].

Website Performance 105

Website Performance Website Performance 105

The Netflix TechBlog

NOVEMBER 6, 2023

We have built an internal system that allows someone to perform in-video search across the entire Netflix video catalog, and we’d like to share our experience in building this system. Building in-video search To build such a visual search engine, we needed a machine learning system that can understand visual elements.

Media 225

Media Social Media Tuning Efficiency 225

Speed Curve

DECEMBER 19, 2023

Our purpose in building this integration is to lower the barrier for getting web performance feedback for your code changes, directly in the environment you are working in. Follow along below for an example of how you can use this integration in practice to fight web performance regressions and keep your pages fast.

Performance Testing 64

Performance Testing Testing Performance Mobile 64

Dynatrace

MARCH 3, 2020

For software engineering teams, this demand means not only delivering new features faster but ensuring quality, performance, and scalability too. One way to apply improvements is transforming the way application performance engineering and testing is done. Performance-as-a-self-service . Try it today using Keptn .

Performance 246

Performance Education Innovation Software Architecture 246

Speed Curve

DECEMBER 13, 2023

So I thought it would be fun to spend some time poking around behind the scenes and give the site a holiday performance audit. Background For this performance audit, I looked at this synthetic test for the LEGO.com home page. (We The performance team is clearly doing a good job of fighting page bloat. Are images optimized?

Performance 69

Performance Retail Benchmarking Ecommerce 69

ScaleOut Software

SEPTEMBER 25, 2020

“Tame Your Data Monster” illustrates the power of real-time digital twins in an entertaining new video. Check out this new video which depicts the challenges in using conventional tools for streaming analytics to track and respond to thousands of data sources in a live system.

Software 52

Software Software Entertainment Analytics 52

ScaleOut Software

SEPTEMBER 25, 2020

“Tame Your Data Monster” illustrates the power of real-time digital twins in an entertaining new video. Check out this new video which depicts the challenges in using conventional tools for streaming analytics to track and respond to thousands of data sources in a live system.

Entertainment 52

Entertainment Analytics Software Software 52

The Netflix TechBlog

MARCH 5, 2024

More than half of our critical streaming video services are now running on JDK 21 with Generational ZGC, so it’s a good time to talk about our experience and the benefits we’ve seen. Half of all services required for streaming video use our Hollow library for on-heap metadata. That became a nearly 10% improvement with generational ZGC.

Latency 228

Latency Java Tuning Efficiency 228

Brendan Gregg

MAY 8, 2021

People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. I recently encountered terrible disk performance and thought it'd be useful to collect Linux tool screenshots and share them for reference. Linux 4.15.0-66-generic

Performance 142

Performance Latency Speed Systems 142

The Netflix TechBlog

JUNE 5, 2023

Problem Netflix’s content catalog is composed of video captured and encoded in one of various frame rates ranging from 23.97 24→60, 25→60, etc…), which manifests as choppy video playback as illustrated below: With Judder Without Judder It is important to note that the severity of the judder depends on the replication pattern.

Entertainment 306

Entertainment Engineering Technology Technology 306

The Netflix TechBlog

JANUARY 25, 2023

An example for storing both time and space based data would be an ML algorithm that can identify characters in a frame and wants to store the following for a video In a particular frame (time) In some area in image (space) A character name (annotation data) Pic 1 : Editors requesting changes by drawing shapes like the blue circle shown above.

Scalability 283

Scalability Latency Media Architecture 283

Dynatrace

AUGUST 5, 2020

Synthetic monitors are also the perfect tool to monitor performance baselines. This clean-room, lab-like environment allows you to react to slight changes in performance. It also gives you the first indication of whether a new deployment of your application or API leads to a performance improvement or, perhaps, a regression.

Metrics 220

Metrics Monitoring Performance Benchmarking 220

Brendan Gregg

FEBRUARY 28, 2023

At USENIX SREcon22 APAC I gave the opening keynote on the future of computer performance, rounding up the latest developments and making predictions of where I see things heading. This talk originated from my updates to [Systems Performance 2nd Edition], and this was the first time I've given this talk in person! Or even on a plane.

Performance 110

Performance Latency Cache Virtualization 110

DZone

MAY 10, 2023

Every internet user, knowingly or unknowingly, uses a CDN while watching a video, reading a newspaper, or enjoying a TV show. It’s a network of geographically distributed servers and data centers designed to deliver higher performance and high availability of internet content. Content Delivery Network (CDN) is not a new technology.

Internet 161

Internet Internet Network Website 161

The Netflix TechBlog

AUGUST 28, 2020

As the number of 4K titles in our catalog continues to grow and more devices support the premium features, we expect these video streams to have an increasing impact on our members and the network. We also show the corresponding full frame which helps to get a sense of how the cutout fits in the corresponding video frame.

Network 330

Network Storage Innovation Mobile 330

DZone

JULY 18, 2019

In reality, application performance is always a challenge – developers and testers strive to make the application perform as close as possible to perfection, but much of this effort is based on assumptions. Often, these assumptions clearly miss the expected service and performance levels. The Road to Performance Engineering.

Engineering 117

Engineering Performance Google Testing 117

Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 140

Performance Latency Hardware Storage 140

Dynatrace

JANUARY 28, 2022

In a preview video for Dynatrace Perform, Andreas Grabner, DevOps activist at Dynatrace, and Lauren Horwitz, content director at Dynatrace, talk about how DevOps orchestration helps companies deliver on speed and quality by integrating tools and automating the software delivery life cycle (SDLC). Dynatrace news.

DevOps 196

DevOps Speed Innovation Cloud 196

Speed Curve

FEBRUARY 15, 2021

Performance budgets are one of those ideas that everyone gets behind conceptually, but then are challenged to put into practice – and for very good reason. If you're just getting started with performance budgets – or if you've been using them for a while and want to validate your work – this post is for you.

Performance 135

Performance Metrics Benchmarking Google 135

The Netflix TechBlog

DECEMBER 14, 2020

i.e. video would play for a very short time, then pause, then start again, then pause. They supplied a video and it looked terrible. I walked upstairs and found the engineer who wrote the audio and video pipeline in Ninja, and he gave me a guided tour of the code. In Ninja, this job is performed by an Android Thread.

Engineering 352

Engineering Code Hardware Open Source 352

Smashing Magazine

SEPTEMBER 22, 2021

Getting Your `head` Straight: A New CSS Performance Diagnostics Snippet. Getting Your `head` Straight: A New CSS Performance Diagnostics Snippet. There are plenty of ways to detect performance bottlenecks and audit CSS. Vitaly Friedman. 2021-09-22T15:00:00+00:00. 2021-09-22T15:50:00+00:00. The tool in action. Large preview ).

Performance 115

Performance Website Engineering Design 115

Speed Curve

NOVEMBER 7, 2021

Keep reading to find out: How much does web performance matter when it comes to SEO? Which performance metrics should you focus on for SEO? How can you track performance for SEO? How much does web performance matter when it comes to SEO? Performance has had an impact on SEO long before Web Vitals came along.

Performance 96

Performance Google Metrics Mobile 96

Dynatrace

MAY 5, 2021

To introduce the video part of this blog, here’s a (short) story about silos; does this one sound familiar? While poor performance or errors can certainly cause a drop in conversions, so can other factors. You know how user experience, app performance, errors, and new features or releases impact these KPIs. And now, the video….

Analytics 240

Analytics Metrics Engineering Design 240

The Netflix TechBlog

NOVEMBER 9, 2021

by Liwei Guo , Ashwin Kumar Gopi Valliammal , Raymond Tam , Chris Pham , Agata Opalach , Weibo Ni AV1 is the first high-efficiency video codec format with a royalty-free license from Alliance of Open Media (AOMedia), made possible by wide-ranging industry commitment of expertise and resources. Video encoding is essentially a search problem?—?the

Media 246

Media Open Source Efficiency Software Engineering 246