The Netflix TechBlog

SEPTEMBER 8, 2020

Migration Testing Infrastructure Our monolith had been around for many years and hadn’t been created with functional and unit testing in mind, so those were independently bolted on by each UI team. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 233

Latency Cache Java Traffic 233

Testsigma

AUGUST 24, 2020

Continuous Testing is the process of testing at all stages of software development – one after the another- without any human intervention. Continuous Testing is key to faster delivery of Agile products to the market. But the path to achieving Continuous Testing has its own challenges, most common of which are mentioned below.

Testing 69

Testing Open Source Scalability Latency 69

The Netflix TechBlog

OCTOBER 19, 2020

Now let’s look at how we designed the tracing infrastructure that powers Edgar. If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls. Storage: don’t break the bank!

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. In Linux, the current mainstream solution is CFS (Completely Fair Scheduler). So why mess with it?

Cache 251

Cache Latency Airlines Logistics 251

Smashing Magazine

NOVEMBER 8, 2021

As developers, we rightfully obsess about the customer experience, relentlessly working to squeeze every millisecond out of the critical rendering path, optimize input latency, and eliminate jank. Continue reading below ↓ Meet Smart Interface Design Patterns , with Vitaly Friedman. Ilya Grigorik. 2021-11-08T14:30:00+00:00.

Cache 135

Cache Best Practices Strategy Servers 135

Dynatrace

FEBRUARY 2, 2022

service availability with <50ms latency for an application with no revenue impact. To avoid this, start the SLO discussion early in the design process. This can create an unnecessary distraction and steal time away from critical tasks. For example, the IT team of a bank wants to ensure that for a trailing 30-day period there is 99.9%

DevOps 192

DevOps Metrics Best Practices Latency 192

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

Dynatrace

APRIL 26, 2022

Digital experience monitoring enables companies to respond to issues more efficiently in real time, and, through enrichment with the right business data, understand how end-user experience of their digital products significantly affects business key performance indicators (KPIs).

Monitoring 200

Monitoring Social Media IoT Metrics 200

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency.

Mobile 104

Mobile Cloud Latency Games 104

All Things Distributed

NOVEMBER 12, 2018

The AWS GovCloud (US-East) Region is located in the eastern part of the United States, providing customers with a second isolated Region in which to run mission-critical workloads with lower latency and high availability. It enjoys the flexibility and cost savings of AWS while they efficiently innovate to better serve US military veterans.

AWS 117

AWS Healthcare Cloud Government 117

Dynatrace

SEPTEMBER 30, 2021

Like any move, a cloud migration requires a lot of planning and preparation, but it also has the potential to transform the scope, scale, and efficiency of how you deliver value to your customers. This can fundamentally transform how they work, make processes more efficient, and improve the overall customer experience. Here are three.

Cloud 163

Cloud Traffic Best Practices Strategy 163

Dotcom-Montior

DECEMBER 8, 2021

In a different article, we talked about chaos engineering and how SRE teams proactively seek out and test for failures to prevent the worst from happening. ITSM defines how teams design, create, and deliver their services. This helps to improve efficiency and ensures that information is consistent, up-to-date, and available.

Social Media 90

Social Media Monitoring Latency DevOps 90

Dotcom-Montior

NOVEMBER 16, 2021

As defined by the Google SRE initiative, the four golden signals of monitoring include the following metrics: Latency. Latency is the amount of time, or delay, a service takes to respond to a request. SREs want one that simply does the job that it was designed to do. Monitoring can provide a way to differentiate between.

Monitoring 91

Monitoring Google DevOps Engineering 91

Abhishek Tiwari

JULY 12, 2018

Here are 8 fallacies of data pipeline The pipeline is reliable Topology is stateless Pipeline is infinitely scalable Processing latency is minimum Everything is observable There is no domino effect Pipeline is cost­-effective Data is homogeneous The pipeline is reliable The inconvenient truth is that pipeline is not reliable.

Latency 63

Latency Analytics Scalability Engineering 63

The Morning Paper

MAY 14, 2019

Last time around we looked at the DeathStarBench suite of microservices-based benchmark applications and learned that microservices systems can be especially latency sensitive, and that hotspots can propagate through a microservices architecture in interesting ways. on end-to-end latency) and less than 0.15% on throughput.

Big Data 45

Big Data Cloud Performance Hardware 45

VoltDB

JUNE 1, 2017

These systems were designed to have a lifetime of half a decade or more, and rapidly changing hardware meant that the initial deployment had to be sized for 5-7 years out. Manpower Optimizers” want help with managing development and test in a large corporate environment.

Hardware 56

Hardware Latency Virtualization Cloud 56

The Netflix TechBlog

JUNE 13, 2023

Our previous blog post presented replay traffic testing — a crucial instrument in our toolkit that allows us to implement these transformations with precision and reliability. Compared to replay testing, canaries allow us to extend the validation scope beyond the service level.

Traffic 279

Traffic Metrics Systems Strategy 279

VoltDB

JUNE 1, 2017

These systems were designed to have a lifetime of half a decade or more, and rapidly changing hardware meant that the initial deployment had to be sized for 5-7 years out. Manpower Optimizers” want help with managing development and test in a large corporate environment.

Hardware 40

Hardware Latency Virtualization Cloud 40

Scalegrid

FEBRUARY 8, 2024

Their design emphasizes increasing availability by spreading out files among different nodes or servers — this approach significantly reduces risks associated with losing or corrupting data due to node failure. Variations within these storage systems are called distributed file systems.

Storage 130

Storage Systems Big Data Azure 130

The Netflix TechBlog

JANUARY 10, 2024

This architecture shift greatly reduced the processing latency and increased system resiliency. We expanded pipeline support to serve our studio/content-development use cases, which had different latency and resiliency requirements as compared to the traditional streaming use case. This testing stage took about two weeks.

Processing 229

Processing Media Latency Innovation 229

The Netflix TechBlog

NOVEMBER 20, 2023

We will show how we are building a clean and efficient incremental processing solution (IPS) by using Netflix Maestro and Apache Iceberg. As our business scales globally, the demand for data is growing and the needs for scalable low latency incremental processing begin to emerge. past 3 hours or 10 days).

Processing 210

Processing Big Data Efficiency Engineering 210

The Netflix TechBlog

MARCH 1, 2021

It supports both high throughput services that consume hundreds of thousands of CPUs at a time, and latency-sensitive workloads where humans are waiting for the results of a computation. Local development tools including specialized test runners, code generators, and a command line interface. Productivity?—?Local Delivery?—?A

Serverless 228

Serverless Media Latency Social Media 228

Percona

MARCH 29, 2023

As the amount of data grows, the need for efficient data compression becomes increasingly important to save storage space, reduce I/O overhead, and improve query performance. Snappy compression is designed to be fast and efficient regarding memory usage, making it a good fit for MongoDB workloads.

Storage 111

Storage Network Open Source Latency 111

Dynatrace

JANUARY 13, 2022

Whereas RUM can capture all the nuances of your real users, providing a true picture into their experience, synthetic monitoring is great for proactive simulation and testing of the expected user experience. Analyzing a clinician’s clickstream when using an electronic medical record system to better improve the efficiency of data entry.

Monitoring 176

Monitoring Latency Mobile Best Practices 176

Percona

DECEMBER 11, 2023

A Dedicated Log Volume (DLV) is a specialized storage volume designed to house database transaction logs separately from the volume containing the database tables. This separation aims to streamline transaction write logging, improving efficiency and consistency. 2xlarge c5.2xlarge MySQL 8.0.31

AWS 99

AWS Benchmarking Performance Traffic 99

Dynatrace

JANUARY 18, 2023

This methodology aims to improve software system reliability using several key categories such as availability, performance, latency, efficiency, capacity, and incident response. DevOps is a tactical approach to creating and delivering software designed to close the gap between development and IT operations. What is DevOps?

DevOps 194

DevOps Best Practices Innovation Strategy 194

Percona

MARCH 20, 2023

When designing an architecture, many components need to be considered before deciding on the best solution. In this scenario, it is also crucial to be efficient in resource utilization and scaling with frugality. micro) The tests We will have very simple test cases. micro) The tests We will have very simple test cases.

Games 123

Games Latency Traffic Cache 123

Percona

APRIL 17, 2023

The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all. This parameter needs to be extensively tested! By default, most Linux installs use the CFQ ( Completely-Fair Queue ) scheduler.

Best Practices 52

Best Practices Design Tuning Database 52

The Netflix TechBlog

APRIL 26, 2022

We will share how its design has evolved over the years and the lessons learned while building it. To understand Axion’s design, we need to know the various components that interact with it. The motivation has not changed since then; the design has. Design evolution Axion fact store has four components?—?fact

Storage 187

Storage Design Scalability Latency 187

Dynatrace

FEBRUARY 24, 2021

As Google’s Ben Treynor explains , “Fundamentally, it’s what happens when you ask a software engineer to design an operations function.” Designating and managing Service Level Objectives (SLOs) as availability targets for a service. Reduced latency. Efficiency. SRE vs DevOps?

DevOps 186

DevOps Software Engineering Speed Google 186

The Netflix TechBlog

MARCH 13, 2020

The teams have been working closely on SVT-AV1 development, discussing architectural decisions, implementing new tools, and improving compression efficiency. The SVT-AV1 encoder supports all AV1 tools which contribute to compression efficiency.

Open Source 154

Open Source Efficiency C++ Speed 154

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. For example, when we design a new version of VMAF, we need to effectively roll it out throughout the entire Netflix catalog of movies and TV shows.

Media 171

Media Innovation Metrics Latency 171

Testsigma

DECEMBER 18, 2019

To improve the quality of a software product built by developers, software testing is the key. Testing is essential to ensure that the end product delivered is stable and works according to the required specifications. Test coverage has a huge impact on what is received as an end product. Training and adaptation.

Testing 73

Testing Open Source Strategy Processing 73

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. Why do we run Performance Tests on commits? By running performance tests against every commit (pre- and post-merge), we can detect potentially regressive commits earlier. What are the Performance Tests?

Performance 199

Performance Metrics Performance Testing Testing 199

Percona

JANUARY 24, 2023

This will be clearly visible in PostgreSQL performance benchmarks as a “ Sawtooth wave ” pattern observed by Vadim in his tests: As we can see, the throughput suddenly drops after every checkpoint due to heavy WAL writing and gradually picks up until the next checkpoint. I couldn’t see any adverse effect on the TPS on quick tests.

Database 118

Database Benchmarking Open Source Latency 118

The Morning Paper

FEBRUARY 6, 2020

’ Stateless is fine until you need state, at which point the coarse-grained solutions offered by current platforms limit the kinds of application designs that work well. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access.

Lambda 98

Lambda Serverless Cache Latency 98

Percona

MAY 15, 2023

This level of distribution will seriously affect the efficiency of the operation, which will increase the response time significantly. MySQL, as well as other RDBMS, are designed to work respecting the model and cannot scale in any way by fragmenting and distributing a schema, so what can be done to scale? This is it.

Traffic 125

Traffic Scalability Database Servers 125