The Netflix TechBlog

AUGUST 30, 2021

By Benson Ma , Alok Ahuja Introduction At Netflix, hundreds of different device types, from streaming sticks to smart TVs, are tested every day through automation to ensure that new software releases continue to deliver the quality of the Netflix experience that our customers enjoy. In this blog post, we will focus on the latter feature set.

Latency 222

Latency Traffic Transportation Cloud 222

Dynatrace

NOVEMBER 20, 2019

The IBM Z platform is a range of mainframe hardware solutions that are quite frequently used in large computing shops. Typically, these shops run the z/OS operating system, but more recently, it’s not uncommon to see the Z hardware running special versions of Linux distributions. running on the 64-bit OS/390x platform.

Availability 43

Availability Hardware Java Tuning 43

Scalegrid

APRIL 16, 2020

Each of these models is suitable for production deployments and high traffic applications, and are available for all of our supported databases, including MySQL , PostgreSQL , Redis™ and MongoDB® database ( Greenplum® database coming soon). This can result in significant cost savings for high traffic applications. Expert Tip.

Cloud 242

Cloud Azure AWS Database 242

Scalegrid

SEPTEMBER 5, 2024

Database operations must continue without disruption to ensure high availability, even when faced with hardware or software failures. In our three-part series of posts on HA for PostgreSQL, we’ll share an overview, the prerequisites, and the working and test results for each tool. Standby Server Tests Sl.

Availability 257

Availability Servers Database Open Source 257

The Netflix TechBlog

APRIL 29, 2019

Such applications track the inventory of our network gear: what devices, of which models, with which hardware components, located in which sites. Demand Engineering Demand Engineering is responsible for Regional Failovers , Traffic Distribution, Capacity Operations and Fleet Efficiency of the Netflix cloud.

Open Source 280

Open Source Network Infrastructure Big Data 280

Dynatrace

DECEMBER 16, 2021

It’s the same concept as Test Driven Development (TDD) where you start with tests that will fail until you finish implementing the code so tests will succeed. For availability, I always propose to use Dynatrace Synthetic vs looking at real user traffic.

DevOps 246

DevOps Social Media Mobile Metrics 246

The Netflix TechBlog

JUNE 4, 2019

CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance. The idea CFS operates by very frequently (every few microseconds) applying a set of heuristics which encapsulate a general concept of best practices around CPU hardware use. So why mess with it?

Cache 258

Cache Latency Airlines Logistics 258

Dynatrace

AUGUST 8, 2019

The IBM Z platform is a range of mainframe hardware solutions that are quite frequently used in large computing shops. Typically, these shops run the z/OS operating system, but more recently, it’s not uncommon to see the Z hardware running special versions of Linux distributions. running on the 64-bit OS/390x platform.

Availability 34

Availability Hardware Java Tuning 34

Dynatrace

NOVEMBER 29, 2022

Using Davis, Cloud Automation can trigger the right fix for an issue , validate the fix by running a synthetic test, update the service ticket, and notify stakeholders using communication channels—all in an automated way. Proactively manage web and mobile applications based on user experience or traffic.

Infrastructure 244

Infrastructure Code Cloud DevOps 244

Dynatrace

MAY 1, 2020

This is especially the case with microservices and applications created around multiple tiers, where cheaper hardware alternatives play a significant role in the infrastructure footprint. The initial release of OneAgent for the ARM platform with OneAgent version 1.191 is certified and tested to work on SUSE Enterprise Linux 15.x,

Java 182

Java Hardware Metrics Tuning 182

The Morning Paper

NOVEMBER 15, 2020

When used in prevention mode (IPS), this all has to happen inline over incoming traffic to block any traffic with suspicious signatures. Regular expression matching is well studied, but state of the art hardware algorithms don’t reach the performance and memory targets needed for Pigasus. MPSM: First things first.

Servers 128

Servers Hardware Latency Design 128

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Load balancers can detect when a component is not responding and put traffic redirection in motion.

Availability 132

Availability Database Open Source Hardware 132

Percona

JUNE 22, 2023

Number of slow queries recorded Select types, sorts, locks, and total questions against a database Command counters and handlers used by queries give an overall traffic summary Along with this, PMM also comes with Query Analytics giving much detailed information about queries getting executed.

Performance 136

Performance Monitoring Traffic Database 136

Percona

JUNE 12, 2023

The immediate (working) goal and requirements of HA architecture The more immediate (and “working” goal) of an HA architecture is to bring together a combination of extensions, tools, hardware, software, etc., Load balancing : Traffic is distributed across multiple servers to prevent any one component from becoming overloaded.

Architecture 124

Architecture Availability Open Source Healthcare 124

Percona

AUGUST 22, 2023

Some of the most important elements include: No single point of failure (SPOF): You must eliminate any SPOF in the database environment, including any potential for an SPOF in physical or virtual hardware. Load balancing: Traffic is distributed across multiple servers to prevent any one component from becoming overloaded.

Availability 98

Availability Hardware Open Source Database 98

All Things Distributed

AUGUST 16, 2012

An apples to apples comparison of the costs associated with running various usage patterns on-premises and with AWS requires more than a simple comparison of hardware expense versus always-on utility pricing for compute and storage. Making predictions about web traffic is a very difficult endeavor. Total Cost of Ownership. t need them.

AWS 99

AWS Hardware Traffic Best Practices 99

All Things Distributed

MARCH 11, 2016

This is a given, whether you are using the highest quality hardware or lowest cost components. When customers left the constraining, old world of IT hardware and datacenters behind, they started to develop systems with new and interesting usage patterns that no one had ever seen before. Primitives not frameworks. APIs are forever.

AWS 127

AWS Hardware Retail Virtualization 127

O'Reilly

SEPTEMBER 19, 2023

Doubly so as hardware improved, eating away at the lower end of Hadoop-worthy work. Google goes a step further in offering compute instances with its specialized TPU hardware. You can see a simulation as a temporary, synthetic environment in which to test an idea. Not that you’ll even need GPU access all that often.

Hardware 135

Hardware Storage Big Data Blockchain 135

All Things Distributed

DECEMBER 12, 2018

Vivino also uses Auto Scaling to deal with the large seasonal fluctuations in traffic. During the winter holiday season, the use of the app increases by up to 300% and AWS allows them to seamlessly scale up to cope with the increase in traffic. Telenor Connexion. Telenor Connexion is all-in on AWS.

AWS 119

AWS Cloud Games Serverless 119

Percona

NOVEMBER 9, 2023

Applications can be horizontally scaled with Kubernetes by adding or deleting containers based on resource allocation and incoming traffic demands. It distributes the load among containers and nodes automatically, ensuring that your application can handle any spike in traffic without the need for manual intervention from an IT staff.

Efficiency 117

Efficiency Cloud Healthcare Open Source 117

All Things Distributed

JUNE 21, 2012

With DynamoDB, we were able to develop and test a new, high scale consumer application in just a few weeks. We switched to storing our game data in DynamoDB, which alleviated our scaling problems while also freeing us from the burden of managing all the underlying hardware and software. consumer and enterprise products.

Games 115

Games Scalability AWS Database 115

Dotcom-Montior

MAY 12, 2020

Web monitoring is a comprehensive term that describes the activity of testing a website or web application for its availability and performance. HTTP monitoring allows you to test availability and performance from around the world. To overcome those intimidating errors, frequent automated and real-time tests should be made.

Monitoring 63

Monitoring Entertainment Hardware Traffic 63

Percona

OCTOBER 18, 2023

This approach can minimize complexities but requires complete confidence in your preparations, tests, and abilities. Resource allocation: Personnel, hardware, time, and money The migration to open source requires careful allocation (and knowledge) of the resources available to you. Should I be bringing in external experts to help out?

Open Source 111

Open Source Database Hardware Strategy 111

Scalegrid

FEBRUARY 8, 2024

Key Takeaways Distributed storage systems benefit organizations by enhancing data availability, fault tolerance, and system scalability, leading to cost savings from reduced hardware needs, energy consumption, and personnel. They maintain fault tolerance and redundancy by replicating this information throughout various nodes in the system.

Storage 130

Storage Systems Big Data Azure 130

The Morning Paper

OCTOBER 4, 2020

Coverage is assessed with a walk-test (4-5km/h) over all road segments on the campus, monitoring the physical-layer information from both 5G and 4G at each location. In a web browsing test, 5G only reduced page loading times (PLT) by about 5% compared to 4G. The authors tested a mobile UHD panoramic video telephony app.

Energy 130

Energy Latency Performance Network 130

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. What is Performance Testing? In the context of web development, performance testing entails using software tools to simulate how an application runs under specific circumstances.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

All Things Distributed

MAY 8, 2012

Since we launched Amazon RDS for MySQL in October 2009 , it has become one of the most popular services on AWS, with customers such as Intuit using the service to keep up with the steep increase in traffic during the tax season. Amazon RDS currently supports SQL Server 2008 R2 and plans to add support for SQL Server 2012 later this year.

Cloud 94

Cloud Development AWS Servers 94

Testsigma

JANUARY 30, 2021

About two decades ago, testing was only limited to the desktop. With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. The native and mobile web browser testing is being performed more and more compared to desktop testing.

Mobile 52

Mobile Testing Website Internet 52

Percona

JULY 7, 2023

Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. Can you afford the necessary hardware, software, and operational costs of maintaining a PostgreSQL HA solution? Test the setup.

Availability 98

Availability Open Source Architecture Database 98

Dotcom-Montior

NOVEMBER 27, 2018

You’ve likely uttered the phrases “test early and often” and “shift left,” but do you always remind yourself of the importance of that phrase from the end user’s perspective? LoadView, our on-demand, cloud-based load and stress testing platform , takes an outside-in approach to performance testing.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

All Things Distributed

APRIL 5, 2012

Large Seasonal Peaks – Our largest community supports TurboTax where the peak traffic during February or April is often 100s of times greater than a quiet day in June. Building "incident creators" - servers which test our ability to maintain peak performance. The best part was that the entire process was what I call Ã?hands

Innovation 112

Innovation AWS Education Network 112

Dotcom-Montior

JUNE 19, 2017

Let’s face it – the ideal load test emulates real world traffic, yet most load testing software doesn’t come close. Held back by budget and infrastructure restrictions, some organizations have been forced to settle for load tests that paint an incomplete picture. Setting Up the Test. Creating a Script.

Performance Testing 40

Performance Testing Testing Performance Virtualization 40

The Morning Paper

JULY 4, 2019

The ‘controlled’ part is important here because given the scale and complexity of the environment under test, the only meaningful place to do this is in production with real users. a bug fix, configuration change, new feature, or A/B test). Netflix’s system is deployed on the public cloud as complex set of interacting microservices.

Latency 77

Latency Engineering Metrics Traffic 77

Brendan Gregg

SEPTEMBER 25, 2021

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. But I'm not completely sure.

Speed 103

Speed Java AWS Virtualization 103

CSS - Tricks

JULY 25, 2019

During performance tests, Lighthouse records many metrics focused on what a user sees and experiences. that allows for testing a minimum of two devices; a fast desktop and a low-mid range mobile phone. It’s time to come to terms that your customers aren’t using the same powerful hardware as you. In-depth manual profiling.

Google 73

Google Engineering Speed Mobile 73

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). Hardware Optimizers” want to get the maximum utilization out of hardware. Private Clouds made of commodity hardware are perceived as the logical solution to this problem. Vikings fight zombies. Where VoltDB fits.

Hardware 56

Hardware Latency Virtualization Cloud 56

Smashing Magazine

APRIL 19, 2021

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. These tools run page loads on simulated networks and devices and then tell you what the metrics were for that test run. Cumulative Layout Shift (CLS).

Google 143

Google Metrics Mobile Analytics 143