Dynatrace

MAY 17, 2023

Validation tasks are then extended left to cover performance testing and release validation in a pre-production environment. While the first guardian validates the traffic, the second guardian checks the business transactions generated during the observation period. The functionality is implemented via an automated workflow.

DevOps 183

DevOps Traffic Latency Best Practices 183

Dynatrace

APRIL 26, 2022

Fast, consistent application delivery creates a positive user experience that can ultimately drive customer loyalty and improve business metrics like conversion rate and user retention. It is proactive monitoring that simulates traffic with established test variables, including location, browser, network, and device type.

Monitoring 200

Monitoring Social Media IoT Metrics 200

Dynatrace

OCTOBER 7, 2020

Open-source metric sources automatically map to our Smartscape model for AI analytics. We’ve just enhanced Dynatrace OneAgent with an open metric API. Here’s a quick overview of what you can achieve now that the Dynatrace Software Intelligence Platform has been extended to ingest third-party metrics. Dynatrace news.

Open Source 253

Open Source Metrics Analytics Tuning 253

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience. This is where large-scale system migrations come into play.

Traffic 279

Traffic Metrics Systems Strategy 279

The Netflix TechBlog

AUGUST 10, 2020

264/AVC Main profile family still represents a substantial portion of the members viewing hours and an even larger portion of the traffic. These are summarized below: Instead of relying on other objective metrics, such as PSNR†, VMAF is employed to guide optimization decisions. Further tuning of pre-defined encoding parameters.

Innovation 239

Innovation Traffic Network Efficiency 239

The Netflix TechBlog

AUGUST 30, 2021

Canary Test Workloads In addition to serving the regular message traffic between users and DUTs, the control plane itself is stress-tested at roughly 3-hour intervals, where nearly 3000 ephemeral MQTT clients are created to connect to and generate flash traffic on the MQTT brokers.

Latency 213

Latency Traffic Transportation Hardware 213

KeyCDN

AUGUST 15, 2019

Web performance is a broad subject, and you’ll find no shortage of performance testing tips and tutorials all over the web. Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. What is Performance Testing?

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Tim Kadlec

MAY 21, 2020

By serving one version of the site with instant.page in place to some traffic, and a site without it to another, I could compare the performance of them both over the same timespan and see how it shakes out. It would have only taken moments in SpeedCurve to see live traffic come through, but I’m an impatient person.

Testing 128

Testing Traffic Tuning Metrics 128

SQL Performance

APRIL 15, 2020

This capability is essential when performance tuning since query events include discrete CPU and IO metrics as well as runtime parameters, which are key for troubleshooting query performance problems such as parameter sniffing. Although this can be somewhat helpful, it is not the same. An Updated XE Session.

Azure 96

Azure Database Tuning Network 96

The Netflix TechBlog

OCTOBER 19, 2020

A lenient trace data sampling policy generates a large number of traces in each service container and can lead to degraded performance of streaming services as more CPU, memory, and network resources are consumed by the tracer library. This setup of chained Mantis jobs allows us to scale each data processing component independently.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Dynatrace

JULY 22, 2019

Applications will always have errors, but these errors don’t always warrant alerts as its not impacting end users and performance. For instance, when there isn’t enough traffic (late at night), the AI will not act to avoid alert spamming. It doesn’t apply to infrastructure metrics such as CPU or memory.

Best Practices 163

Best Practices Artificial Intelligence Monitoring Tuning 163

Dotcom-Montior

NOVEMBER 11, 2020

Developers don’t have to put in additional time to fine-tuning the system, or rely on other teams for support, as it’s done automatically with the cloud provider. The primary challenge being not able to access the underlying infrastructure metrics. Focus on Application Development. Response Times. Monitoring.

Serverless 57

Serverless Monitoring Lambda Latency 57

The Netflix TechBlog

OCTOBER 18, 2019

The key insight was that by assuming a latent Gaussian Process (GP) prior on the key business metric actions like viral engagement, job applications, etc., And finally each new observation needs to update the policy, compute offline policy evaluation metrics and then push the policy back to production so it can generate new intents to treat.

Infrastructure 126

Infrastructure Metrics Architecture Efficiency 126

Smashing Magazine

APRIL 11, 2022

Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. Of all those options, it’s safe to assume that text is the best choice for LCP performance because it loads and renders fast.

Media 69

Media Tuning Metrics Google 69

The Netflix TechBlog

JUNE 14, 2023

This blog post will share broadly-applicable techniques (beyond GraphQL) we used to perform this migration. So, we relied on higher-level metrics-based testing: AB Testing and Sticky Canaries. To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render.

Traffic 353

Traffic Latency Cache Metrics 353

The Netflix TechBlog

OCTOBER 15, 2019

Existing Solutions Dual Writes In order to keep two datastores in sync, one could perform a dual write, which is executing a write to one datastore following a second write to the other. No need to acquire locks on tables, which is essential to ensure that the write traffic on the database is never blocked by our service.

Transportation 192

Transportation Architecture Processing Storage 192

The Netflix TechBlog

OCTOBER 18, 2019

The key insight was that by assuming a latent Gaussian Process (GP) prior on the key business metric actions like viral engagement, job applications, etc., And finally each new observation needs to update the policy, compute offline policy evaluation metrics and then push the policy back to production so it can generate new intents to treat.

Infrastructure 100

Infrastructure Metrics Architecture Efficiency 100

Smashing Magazine

MARCH 19, 2021

But we can’t really say just yet whether it had any impact on the business metrics — well, we’ll need to wait for a big book release to see that. Working around improving performance was an ongoing journey on SmashingMag for a while. We were busy not only with performance and UX optimizations though. Vitaly Friedman.

Mobile 140

Mobile Design Cache Code 140

Dynatrace

MAY 17, 2023

Making applications observable—relying on metrics, logs, and traces to understand what software is doing and how it’s performing—has become increasingly important as workloads are shifting to multicloud environments. We also introduced our demo app and explained how to define the metrics and traces it uses.

Metrics 168

Metrics Monitoring Database Network 168

Dynatrace

FEBRUARY 16, 2023

The short answer: The three pillars of observability—logs, metrics, and traces—converging on a data lakehouse. And without the encumbrances of traditional databases, Grail performs fast. “In Simply put, metrics are the counts and measures that are often calculated or aggregated over time.

Analytics 182

Analytics Innovation Metrics Database 182

Percona

MARCH 7, 2019

I’ll show you how we approached the resolution of a MySQL performance issue and used Percona Monitoring and Management PMM to support troubleshooting. The customer had noticed a linear high CPU usage in one of their MySQL instances and was not able to figure out why as there was no much traffic hitting the app.

C++ 101

C++ Traffic Servers Monitoring 101

Dynatrace

SEPTEMBER 29, 2021

This opens the door to auto-scalable applications, which effortlessly matches the demands of rapidly growing and varying user traffic. For a deeper look into how to gain end-to-end observability into Kubernetes environments, tune into the on-demand webinar Harness the Power of Kubernetes Observability. What is Docker? Networking.

Open Source 298

Open Source Traffic DevOps Cloud 298

The Netflix TechBlog

NOVEMBER 2, 2020

How viewers are able to watch their favorite show on Netflix while the infrastructure self-recovers from a system failure By Manuel Correa , Arthur Gonigberg , and Daniel West Getting stuck in traffic is one of the most frustrating experiences for drivers around the world. Logs and background requests are examples of this type of traffic.

Traffic 252

Traffic Metrics Infrastructure Architecture 252

Dynatrace

JULY 24, 2023

Observability data provides a treasure trove of performance, stability, and user experience metrics encompassing error rates, response times, and user engagement. With swift precision, an answer-driven automation solution that uses causal AI can transform these metrics into invaluable insights.

DevOps 217

DevOps Traffic Efficiency Servers 217

The Netflix TechBlog

FEBRUARY 18, 2022

By: Ankush Gulati , David Gevorkyan Additional credits: Michael Clark , Gokhan Ozer Intro Netflix has more than 220 million active members who perform a variety of actions throughout each session, ranging from renaming a profile to watching a title. This helps limit the outgoing traffic footprint considerably.

Systems 334

Systems Traffic Architecture Mobile 334

Dynatrace

NOVEMBER 24, 2020

Dynatrace provides advanced observability across on-premises systems and cloud providers in a single platform, providing application performance monitoring, infrastructure monitoring, Artificial Intelligence-driven operations (AIOps), code-level execution, digital experience monitoring (DEM), and digital business analytics. Stay tuned.

AWS 143

AWS Artificial Intelligence Best Practices Lambda 143

Dynatrace

MAY 1, 2020

Our mission is to provide automatic answers, including root cause analysis, for performance degradation across all these systems and environments, regardless of the underlying hardware architecture. Host performance measures. For details on available metrics, see host performance monitoring. Stay tuned for more details.

Java 132

Java Hardware Tuning Metrics 132

Dynatrace

JUNE 26, 2020

Dynatrace Digital Experience Monitoring , as part of the Dynatrace Software Intelligence Platform, connects front-end monitoring and the outside-in user perspective with application performance to understand the impact of performance issues across your full stack on user experience and business outcomes. Web applications.

Monitoring 254

Monitoring Azure AWS Traffic 254

Dynatrace

DECEMBER 9, 2020

The flip side of speeding up delivery, however, is that each software release comes with the risk of impacting your goals of availability, performance, or any business KPIs. Which metrics are relevant for your business, anyway? Modern observability tools provide many metrics, but which ones are really important for your business?

Metrics 150

Metrics Engineering Google Monitoring 150

The Netflix TechBlog

NOVEMBER 2, 2021

Perceptual quality measurements are used to drive video encoding optimizations , perform video codec comparisons , carry out A/B testing and optimize streaming QoE decisions to mention a few. In particular, the VMAF metric lies at the core of improving the Netflix member’s streaming video quality. Assembly for two of the metrics (e.g.

Media 171

Media Innovation Metrics Latency 171

Dynatrace

FEBRUARY 10, 2021

Automated release inventory and version comparison , which allows teams to easily evaluate the performance of individual release versions, and as needed, roll back to a previous version. This capability provides version information along with an additional insight into traffic and problems per version. What’s next.

Cloud 165

Cloud DevOps Speed Azure 165

The Netflix TechBlog

APRIL 29, 2019

Demand Engineering Demand Engineering is responsible for Regional Failovers , Traffic Distribution, Capacity Operations and Fleet Efficiency of the Netflix cloud. One example is the Spectator Python client library, a library for instrumenting code to record dimensional time series metrics.

Open Source 279

Open Source Network Infrastructure Big Data 279

The Netflix TechBlog

JULY 26, 2021

Such a paradigm aspires to assist front-line operations personnel and stakeholders in “running the business”²; performing their tasks through means such as ad hoc analysis, decision-support, and tracking (of tasks, assets, schedules, etc). This strategy has increased the Studio Tech Solutions team performance and stability.

Big Data 253

Big Data Government Analytics Processing 253

Alex Russell

MARCH 31, 2022

The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Like every other successful platform, the web operates on a finely tuned understanding of risk and trust , and deprecations are particularly explosive. [2] Developers won't need to do work to realise a benefit.

Cache 82

Cache Government Traffic Network 82

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). Robin Marx. 2021-08-23T06:20:00+00:00.

Performance 105

Performance Network Latency Servers 105

Rigor

SEPTEMBER 3, 2019

It’s about ensuring that your front-end is also working perfectly, that your site can deliver a delightful experience to your users or customers, and that it is functional – even when it’s experiencing up to seven or more times the typical traffic load. How are you monitoring end-user performance today?

Website 74

Website Cache Ecommerce Traffic 74

The Morning Paper

OCTOBER 8, 2019

New models are tested online through an A/B testing framework to compare their performance to previous generations. There were many successful iterations of that approach to follow, but eventually performance saturated and it was hard to make any further improvements. Tuning the model. The time is right.

Network 82

Network Architecture Tuning Traffic 82