The Netflix TechBlog

SEPTEMBER 24, 2021

Uploading and downloading data always come with a penalty, namely latency. Figure 2: Cloud Resource and Job Sizes This initial architecture was designed at a time when packaging from a list of chunks was not possible and terabyte-sized files were not considered. thus making this design viable. at most few parts at a time?—?thus

Cloud 242

Cloud Media Storage Cache 242

Dynatrace

JANUARY 31, 2024

For production models, this provides observability of service-level agreement (SLA) performance metrics, such as token consumption, latency, availability, response time, and error count. To observe model drift and accuracy, companies can use holdout evaluation sets for comparison to model data.

Cache 276

Cache Azure Infrastructure Monitoring 276

Highly Scalable

SEPTEMBER 18, 2012

Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. Read/Write latency. Read/Write requests are processes with a minimal latency. Data Placement. Read/Write scalability.

Database 213

Database Latency C++ Scalability 213

CSS Wizardry

AUGUST 13, 2019

Although this response has a 0B filesize, we will always take the latency hit on every single page view (and this response is basically 100% latency). com , which introduces yet more latency for the connection setup. If you’re interested in seeing a real-world example of this, consider the following filmstrip comparison.

Latency 213

Latency Cache Strategy Media 213

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 178

Media Innovation Metrics Latency 178

Dynatrace

JANUARY 31, 2024

This freshness measurement can then be used by out-of-the-box Dynatrace anomaly detection to actively alert on abnormal changes within the data ingest latency to ensure the expected freshness of all the data records. Solution : Like the freshness example, Dynatrace can monitor the record count over time.

DevOps 272

DevOps Analytics Airlines Metrics 272

Scalegrid

MARCH 28, 2024

In this comparison of Redis vs Memcached, we strip away the complexity, focusing on each in-memory data store’s performance, scalability, and unique features. Redis Data Types and Structures The design of Redis’s data structures emphasizes versatility. Memcached’s primary strength lies in its simplicity.

Cache 130

Cache Storage Architecture Scalability 130

Percona

MARCH 29, 2023

Snappy compression is designed to be fast and efficient regarding memory usage, making it a good fit for MongoDB workloads. s Time taken to import 120000000 document: 7412 seconds We can see from the above comparison that we can save almost 3GB of disk space without impacting the CPU or memory. provides higher compression rates.

Storage 130

Storage Network Open Source Latency 130

Scalegrid

NOVEMBER 4, 2024

Audience This article is designed for database administrators (DBAs), DevOps teams, system architects, CTOs, and any stakeholders responsible for selecting and optimizing database solutions in cloud environments. Test Environment Setup Instance Types : We used similar cloud instances for AWS RDS and ScaleGrid to ensure a fair comparison.

Benchmarking 130

Benchmarking AWS Tuning Metrics 130

The Morning Paper

NOVEMBER 15, 2020

With more nodes and more coordination comes more complexity, both in design and operation. This makes the whole system latency sensitive. One of the joys of this paper is that you don’t just get to see the final design, you also get insight into the forces and trade-offs that led to it.

Servers 128

Servers Hardware Latency Design 128

Alex Russell

FEBRUARY 28, 2022

The chief effect of the architectural difference is to shift the distribution of latency within the loop. Herein lies the source of our collective anxiety about front-end architectures: traversing networks is always fraught, but the costs to deliver client-side logic to cushion users from variable network latency remain stubbornly high.

Performance 113

Performance Latency Architecture Network 113

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. for the wasm-version.

Mobile 104

Mobile Cloud Latency Games 104

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.

Open Source 159

Open Source Efficiency C++ Speed 159

Enprowess

SEPTEMBER 7, 2021

Quick summary : Node vs React Comparison is not correct because both technologies are entirely different things. Node JS vs. React JS Comparison. The technology develops single-page applications , websites, and backend API services designed with real-time and push-based architectures. Node JS vs. React JS Comparison.

Open Source 52

Open Source Virtualization Programming Servers 52

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. This process is illustrated in the following code snippet: class LinearCounter { BitSet mask = new BitSet(m) // m is a design parameter void add(value) { int position = hash(value) // map the value to the range 0.m

Analytics 191

Analytics Traffic Big Data Efficiency 191

Particular Software

SEPTEMBER 20, 2021

Some will claim that any type of RPC communication ends up being faster (meaning it has lower latency) than any equivalent invocation using asynchronous messaging. It’s less of an apples-to-oranges comparison and more like apples-to-orange-sherbet. There are more steps, so the increased latency is easily explained.

Benchmarking 97

Benchmarking Latency Servers Systems 97

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. There are roughly 50 performance tests, each one designed to reproduce an aspect of member engagement. and often before they are even committed to the codebase. What do we mean by Performance?

Performance 208

Performance Performance Testing Metrics Testing 208

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. DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads.

AWS 117

AWS Benchmarking Performance Traffic 117

VoltDB

OCTOBER 30, 2024

You could play with it until you felt like building something else and turning the current models into interior design pieces. Here’s a quick comparison: Preventive maintenance: Planned in advance, cost-effective, reduces downtime, and improves reliability. The beauty of Legos was (is) the “one and done” aspect of it.

Automotive 52

Automotive IoT Artificial Intelligence Energy 52

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 99

Performance Latency Metrics Engineering 99

The Morning Paper

AUGUST 29, 2019

The design space. We group the DBMS design choices and tradeoffs into three broad categories, which result from the need for dealing with (A) external storage; (B) query executors that are spun on demand; and (C) DBMS-as-a-service offerings. Key findings. Query restrictions.

Architecture 76

Architecture Cloud Storage Serverless 76

Adrian Cockcroft

JANUARY 20, 2023

In comparison, for Linpack Frontier operates at 68% of peak capacity. During the Reinventing HPC panel session, there was some discussion of the cost of designing custom processors for HPC, and a statement that it was too high, in the hundreds of millions of dollars.

Architecture 52

Architecture Latency Benchmarking AWS 52

Smashing Magazine

MAY 16, 2022

Due to the design of web browser APIs, there are currently no mechanisms for querying requests and their relative responses after the fact. We can also lean into what we’ve learned with Server-Timing to set a timestamp on the header for comparison. No References Required. This is important because of the need to manage memory.

Servers 111

Servers Monitoring Cache Network 111

Smashing Magazine

AUGUST 10, 2023

Certain tools are designed for certain metrics with certain assumptions that produce certain results. In contrast, tools like DebugBear and WebPageTest use more realistic throttling that accurately reflects network round trips on a higher-latency connection. Lighthouse results. Real usage data would be better, of course.

Speed 85

Speed Monitoring Testing Network 85

Alex Russell

APRIL 29, 2021

Apple's policy against browser engine choice adds years of delays beyond the (expected) delay of design iteration, specification authoring, and browser feature development. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Offscreen Canvas.

Media 145

Media Games Education Engineering 145

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. HTTP/2 versus HTTP/3 protocol stack comparison ( Large preview ). Conclusion.

Transportation 145

Transportation Internet Internet Network 145

The Morning Paper

DECEMBER 8, 2019

(Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. Therefore any programming abstraction must be low latency and the kernel needs to be kept off the path of persistent data access as much as possible.

Hardware 56

Hardware Programming Media Storage 56

The Morning Paper

MAY 28, 2019

The resulting system can integrate seamlessly into a scikit-learn based development process, and dramatically reduces the total energy usage required for classification with very low latency. The evaluation is performed using the MNIST dataset, since that has the most results available in the literature for comparison.

Energy 52

Energy Hardware Efficiency Architecture 52

VoltDB

MARCH 22, 2024

This can lead to a ‘camel-is -a-horse designed-by-committee’ situation, where the resulting API is more a reflection of battling political wills than technical common sense. And while the APIs define contracts for what gets passed back and forth, we generally don’t discuss expected latency or availability. API Challenge #5.

Java 52

Java Servers Latency Code 52

Testsigma

JANUARY 30, 2021

The applications are designed using the same code base as Desktop like HTML, Javascript, and CSS. Unlike Native Applications, Mobile web applications do not have to be designed separately for IOS and Android. Test how user-friendly an application is: Google search engine gives high priority to websites in comparison to desktop apps.

Mobile 52

Mobile Testing Website Internet 52

ScaleOut Software

MAY 15, 2014

Likewise, object access paths must be heavily multi-threaded and avoid lock contention to minimize access latency and maximize throughput. A Few Words on Design Philosophy: Keep It Simple. Use Fully Peer-to-Peer Design for Simplicity and High Availability. Testing Scale-Up Performance. Distributed Cache or In-Memory Data Grid?

Cache 40

Cache Servers Network Design 40

Alex Russell

JULY 14, 2021

The benefits to apps that adopt WebView-based IABs are numerous: WebViews are system components designed for use within other apps. CCT's core design is sound and has enormous potential if made mandatory in place of WebView IABs by the Android and Play teams. There's reason to worry that this is unlikely.

Google 134

Google Mobile Engineering Internet 134

IO River

NOVEMBER 2, 2023

This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. Statistics reveal that a 1% improvement in latency can lead to a 3% increase in viewer engagement, highlighting its significance in live content delivery.3.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. This is mainly because video files are notably bulkier than a simple text-based API request, which, in comparison, would be more like a droplet than an entire river.

Architecture 52

Architecture Performance Internet Internet 52

John McCalpin

JANUARY 22, 2018

Each of the two vector units can issue one FMA instruction per cycle, assuming that there are enough independent accumulators to tolerate the 6-cycle dependent-operation latency. Using the minimum number of accumulator registers needed to tolerate the pipeline latency (12), the assembly code for the inner loop is: B1.8: 8.056 0.056 75.0%

Latency 40

Latency Hardware Code Testing 40

John McCalpin

JANUARY 22, 2018

Each of the two vector units can issue one FMA instruction per cycle, assuming that there are enough independent accumulators to tolerate the 6-cycle dependent-operation latency. Using the minimum number of accumulator registers needed to tolerate the pipeline latency (12), the assembly code for the inner loop is: B1.8: 8.056 0.056 75.0%

Latency 40

Latency Hardware Code Testing 40

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. HammerDB uses stored procedures to achieve maximum throughput when benchmarking your database. On MySQL, we saw a 1.5X

Benchmarking 63

Benchmarking Database Network C++ 63