The Netflix TechBlog

FEBRUARY 13, 2024

These observations are from a particular type of A/B test that Netflix runs called a software canary or regression-driven experiment. Netflix also performs canary tests — software A/B tests between current and newer software versions. Strictly control false positive (false alarm) probabilities.

Testing 239

Testing Software Software Metrics 239

Dynatrace

NOVEMBER 10, 2021

By combining DevOps with Security to enable DevSecOps , you can shift security checks left into the software development lifecycle (SDLC), allowing you to keep up pace and velocity without jeopardizing security. Security vulnerabilities are checked throughout the lifecycle, including comparisons against previous releases.

Serverless 221

Serverless DevOps Cloud Metrics 221

Dynatrace

JULY 13, 2021

With the increasing adoption of agile software development, DevOps , progressive continuous delivery, and Site Reliability Engineering (SRE) practices, many companies are aiming to deliver better software faster and more safely while keeping up with customer demands. Automated comparison of different timeframes based on SLIs and SLOs.

Cloud 244

Cloud DevOps Benchmarking Speed 244

Dynatrace

APRIL 21, 2022

Most monitoring tools for migrations, development, and operations focus on collecting and aggregating the three pillars of observability— metrics, traces, and logs. Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host.

Azure 197

Azure Monitoring Virtualization Metrics 197

Dynatrace

NOVEMBER 14, 2023

Golden Paths for rapid product development Modern software development aims to streamline development and delivery processes to ensure fast releases to the market without violating quality and security standards. In many cases, you want to retrieve the logs, metrics, or traces of a particular version, which is unknown upfront.

Government 203

Government Best Practices DevOps Engineering 203

Dynatrace

JANUARY 16, 2023

The study analyzes factual Kubernetes production data from thousands of organizations worldwide that are using the Dynatrace Software Intelligence Platform to keep their Kubernetes clusters secure, healthy, and high performing. Open-source software drives a vibrant Kubernetes ecosystem. Java, Go, and Node.js

Open Source 349

Open Source Java Operating System Programming 349

Dynatrace

OCTOBER 30, 2023

Consolidate log management tools into a unified observability platform As businesses increasingly shift toward software-centric models, the number of specialized IT monitoring tools to manage cloud environments has proliferated. Use string comparisons wisely Take care to use operators that work optimally for what you’re looking for.

Best Practices 253

Best Practices Analytics Artificial Intelligence Infrastructure 253

Dynatrace

FEBRUARY 15, 2023

SREs face ever more challenging situations as environment complexity increases, applications scale up, and organizations grow: Growing dependency graphs result in blind spots and the inability to correlate performance metrics with user experience. Additionally, you can easily use any previously defined metrics and SLOs from your environments.

DevOps 227

DevOps Latency Traffic Best Practices 227

Dynatrace

FEBRUARY 10, 2021

Software companies who have already been following and adopting DevOps and site reliability engineering (SRE) practices alongside their shared ancestry in agile concepts came out on top – especially if they adopted those practices across the whole organization and customer value stream.

Cloud 174

Cloud DevOps Speed Azure 174

Dynatrace

SEPTEMBER 22, 2021

Application performance monitoring involves tracking key software application performance metrics using monitoring software and telemetry data. Application performance monitoring has a strong focus on specific metrics and measurements.

Innovation 214

Innovation Open Source Monitoring Infrastructure 214

Dynatrace

NOVEMBER 9, 2021

Observability provides deeper technical insights into what’s happening within cloud environments, in comparison to APM and/or traditional monitoring methods. And for observability to be successful, it requires much more than just logs, metrics, and traces. Traditional approaches and tooling simply don’t work in the new cloud world.

DevOps 226

DevOps Innovation Cloud Programming 226

The Netflix TechBlog

NOVEMBER 29, 2023

Details pertaining to HDR-VMAF exceed the scope of this article and will be covered in a future blog post; for now, suffice it to say that the first version of HDR-VMAF landed internally in 2021 and we have been improving the metric ever since. The arrival of HDR-VMAF allowed us to create HDR streams with DO applied, i.e., HDR-DO encodes.

Open Source 252

Open Source Software Engineering Internet Internet 252

DZone

FEBRUARY 27, 2021

As a Software Engineer, the mind is trained to seek optimizations in every aspect of development and ooze out every bit of available CPU Resource to deliver a performing application. There were languages I briefly read about, including other performance comparisons on the internet. These include Python, PHP, Perl, and Ruby.

Java 207

Java C++ Benchmarking Programming 207

Dynatrace

MAY 24, 2023

If you’re already using containers for your software and have requested private locations for them but aren’t entirely satisfied with the need to set up virtual machines. If deploying synthetic ActiveGates on separate VMs is a hassle while using Dynatrace Synthetic. If you partially deploy your applications as containers.

Scalability 217

Scalability Virtualization Monitoring Open Source 217

Dynatrace

JUNE 4, 2021

Alois Reitbauer, VP Chief Technology Strategist at Dynatrace drew many comparisons between the process of crafting whisky and building out an effective observability model – quite the feat indeed! In software, we compare different services together with these metrics. Key Performance Indicators (KPIs) and monitoring.

Artificial Intelligence 144

Artificial Intelligence Metrics Monitoring Innovation 144

The Netflix TechBlog

FEBRUARY 13, 2020

Image compression comparison framework We have open sourced a Docker based framework for comparing various image codecs. db_file_name='encoding_results_vmaf.db') For the various codecs and configurations involved in the ensuing comparison, the reader can view the actual command lines in the shared repository.

Code 212

Code Metrics Efficiency Open Source 212

Dynatrace

AUGUST 14, 2023

Collect user behavior data Organizations typically use analytics software to collect a large volume of data on user behavior from relevant sources. Metrics like the net promoter score (NPS) or customer satisfaction (CSAT) score encapsulate this kind of customer feedback into measurable analytics.

Analytics 235

Analytics Social Media Website IoT 235

The Netflix TechBlog

NOVEMBER 15, 2021

This is the Multiple Comparisons Problem , and there are a number of approaches to controlling the overall false positive rate that we’ll not cover here. Does the metric story hang together? even if, in truth, the null hypothesis is true in each case and there is no actual effect. In Part 2 (What is an A/B Test?),

Metrics 204

Metrics Testing Innovation Design 204

Dynatrace

JUNE 8, 2021

In software we use the concept of Service Level Objectives (SLOs) to enable us to keep track of our system versus our goals, often shown in a dashboard – like below –, to help us to reach an objective or provide an excellent service for users. Metric 2: number of requests in error. Ability to add the metric in one of your dashboards.

Metrics 173

Metrics Tuning Programming Systems 173

The Netflix TechBlog

JANUARY 11, 2022

For example we rely on difference-in-differences techniques for unbiased comparisons between the potentially different audiences experiencing each advertising treatment, and these approaches effectively reduce the sample size ( more details for the very interested reader). Are there metrics that can yield a signal faster?

Innovation 243

Innovation Metrics Engineering Testing 243

Sutter's Mill

MARCH 11, 2024

To talk about C++’s current safety problems and solutions well, I need to include the context of the broad landscape of security and safety threats facing all software. Software security ” (or “cybersecurity” or similar) means making software able to protect its assets from a malicious attacker.

C++ 139

C++ Programming Code Java 139

Enprowess

SEPTEMBER 20, 2021

Two primary metrics verify the speed of an app: start-up time and runtime performance. of software development companies would like to hire React developers , whereas only 19% of s/w engineers have the desired skills. The post React vs Vue comparison- what is the best choice for 2021? Vue vs React: Performance.

Open Source 52

Open Source Mobile Scalability Google 52

Dynatrace

NOVEMBER 4, 2022

But it has become too difficult to query huge volumes of log and metrics data and retain the context of this information, which is vital to delivering and improving services for citizens.” . When issues arise, teams can’t depend on these tools for quick resolutions, because data comparisons are difficult and contribute to delays.

Government 147

Government Analytics Cloud Storage 147

Dynatrace

MARCH 10, 2021

They collect metrics and raise alerts, but they provide few answers as to what went wrong in the first place. This is a game-changer in operations for sure, and better yet again when you can apply it along the entire digital value chain, from software development through service delivery to customer interactions.

AWS 147

AWS Cloud Artificial Intelligence Innovation 147

Smashing Magazine

SEPTEMBER 29, 2021

Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page. Smaller file size directly impacts the Largest contentful Paint (LCP) metric for the page as image resources needed by the page get loaded faster. See the Pen [Image format comparison 2]([link] by Addy Osmani.

Open Source 144

Open Source Speed Website Google 144

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. It enables the user to measure database performance and make comparative judgements about database hardware and software. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The HammerDB name.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Dynatrace

JANUARY 16, 2020

Since we began the series pointing out parallels to technical debt, let’s revisit that comparison. One of the fundamental differences between machine learning systems and the artificial intelligence (AI) at the core of the Dynatrace Software Intelligence Platform is the method of analysis. Machine learning systems.

Cloud 158

Cloud Artificial Intelligence Virtualization Efficiency 158

The Netflix TechBlog

FEBRUARY 20, 2019

by Jason Koch , with Martin Spier , Brendan Gregg , Ed Hunter Improving the tools available to our engineers to help them diagnose, triage, and work through software performance challenges in the cloud is a key goal for the cloud performance engineering team at Netflix. or “are there noisy neighbors affecting my container task?”.

Performance 211

Performance Latency Open Source Metrics 211

Percona

MARCH 17, 2023

PMM2 uses VictoriaMetrics (VM) as its metrics storage engine. Please note that the focus of these tests was around standard metrics gathering and display, we’ll use a future blog post to benchmark some of the more intensive query analytics (QAN) performance numbers. Our team is planning to implement a fix for this soon.

Monitoring 99

Monitoring Scalability Cache Database 99

Dynatrace

SEPTEMBER 25, 2019

Dynatrace is naturally suited to address these requirements with its automatic and AI-powered full-stack software intelligence platform. Dynatrace software intelligence helps you manage Citrix environments and real user experience more effectively. Comparison of these metrics between VDAs characterizes load balancing efficiency.

Latency 118

Latency Performance Virtualization Infrastructure 118

The Netflix TechBlog

MARCH 13, 2020

Compared to the most recent master version of libaom (AV1 reference software), SVT-AV1 is similar in compression efficiency and at the same time achieves significantly lower encoding latency on multi-core platforms when using its inherent parallelization capabilities. The plot shows the results of the 2-pass encoding mode in both codecs.

Open Source 154

Open Source Efficiency C++ Speed 154

Testsigma

MAY 26, 2021

According to CIO Dive , data-driven organizations have at least a 58 percent of chances to meet their revenue goals in comparison to non-data-driven organizations. This article will discuss those data-driven techniques and how we can achieve software reliability using them. But more than anything, data offers clarity.

Testing 59

Testing Testing Tools Metrics Code 59

Dynatrace

JULY 9, 2020

Gone are the days for Christian manually looking at dashboards and metrics after a new build got deployed into a testing or acceptance environment: Integrating Keptn into your existing DevOps tools such as GitLab is just a matter of an API call. Comparison across builds. Powerful configuration as code approach with SLIs & SLOs.

Cloud 195

Cloud DevOps Azure Architecture 195

Smashing Magazine

OCTOBER 27, 2021

Eye-tracking provides information on how people navigate on a page and how attracted they are to visual elements on the screen, like in this study conducted by Nielsen Norman Group which shows the pattern that people use to scan comparison tables. The AOI will determine what areas you will calculate metrics for.

Mobile 112

Mobile Website Hardware Social Media 112

Smashing Magazine

NOVEMBER 22, 2021

Better tooling and metrics standardization. Moreover, the industry has primarily standardized on Google’s Core Web Vitals (CWV) performance metrics, and monitoring them is now integrated into services such as the Google Search Console. But which metrics should be measured in order to determine website performance?

Website 126

Website Performance Google Media 126

SQL Performance

JANUARY 23, 2020

When used in combination with resource metrics, waits can be valuable for assessing certain performance characteristics of the workload and aid in steering tuning efforts. There is a single SQL Server database at the heart of every SentryOne monitoring environment, and this customer was monitoring around 600 servers with our software.

Tuning 115

Tuning Servers Monitoring Hardware 115

Alex Russell

MAY 9, 2022

Teams I've consulted are too often wrenched between celebration over "the big rewrite" launch and the morning-after realisation that the new stack is tanking business metrics. No other aspect of modern software is as poorly managed in otherwise functional engineering organisations. Level 1: Fire Fighting #. Photo by Jay Heike.

Performance 86

Performance Latency Metrics Engineering 86