CSS Wizardry

JANUARY 31, 2019

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. If you’re streaming video, the difference between a 2Mb 1 connection and a 20Mb connection will surely be appreciated. Latency is defined as…. and reduction in latency. and reduction in latency.

Latency 133

Latency Network Speed Servers 133

Dynatrace

DECEMBER 13, 2023

By monitoring metrics such as error rates, response times, and network latency, developers can identify trends and potential issues, so they don’t become critical. Load time and network latency metrics. Minimizing the number of network requests that your app makes can improve performance by reducing latency and improving load times.

Best Practices 206

Best Practices Mobile Metrics Performance 206

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. ‍What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Latency 184

Latency Website Traffic Virtualization 184

Dynatrace

JUNE 1, 2023

Note : you might hear the term latency used instead of response time. Both latency and response time are critical to ensure reliability. Latency typically refers to the time it takes for a single request to travel from its source to its destination. Latency primarily focuses on the time spent in transit.

Traffic 173

Traffic Latency Website Virtualization 173

Apica

JULY 1, 2022

And with streaming services increasing all the time, more and more providers are embracing technologies that allow them to provide video content through browsers and a variety of dedicated apps. DASH operates in a similar manner over HTTP, and both formats break videos up into chunks that are encoded at different levels of quality.

Internet 52

Internet Internet Latency Virtualization 52

Smashing Magazine

NOVEMBER 9, 2021

Automatically Transforming And Optimizing Images And Videos On Your WordPress Website. Automatically Transforming And Optimizing Images And Videos On Your WordPress Website. Leonardo Losoviz. 2021-11-09T09:30:00+00:00. 2021-11-09T14:02:28+00:00. Adding Transformations To The Images.

Website 103

Website Social Media Media Design 103

Dynatrace

DECEMBER 27, 2022

According to Google’s SRE handbook , best practices, there are “ Four Golden Signals ” we can convert into four SLOs for services: reliability, latency, availability, and saturation. Latency is the time that it takes a request to be served. Define SLOs for each service. Reliability. 7 Steps to identify effective SLOs.

Software 272

Software Software Benchmarking Latency 272

The Netflix TechBlog

SEPTEMBER 8, 2020

As an example, to render the screen shown here, the app sends a query that looks like this: paths: ["videos", 80154610, "detail"] A path starts from a root object , and is followed by a sequence of keys that we want to retrieve the data for. Instead, it is part of a different path : [videos, <id>, similars].

Latency 233

Latency Cache Java Traffic 233

CSS Wizardry

MAY 19, 2020

On a high-latency connection, this spells bad news. However, the execution of this header is bound by the response’s TTFB, which on high-latency networks can be very, very high. Put another-other way, this file is latency-bound, not bandwidth-bound. And a video showing the issue in DevTools: Can’t see the video?

Google 364

Google Media Latency Metrics 364

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. Throughput and latency. What about UHD video?

Energy 130

Energy Latency Performance Network 130

KeyCDN

FEBRUARY 14, 2019

Thanks to their simplicity and widespread support, GIF files remain wildly popular despite the dozens of other image and video formats available today. There’s a debate among web developers whether or not animated image formats should be ditched altogether in favor of video formats.

Speed 50

Speed Website Latency Cache 50

The Netflix TechBlog

JANUARY 10, 2024

The Netflix video processing pipeline went live with the launch of our streaming service in 2007. This architecture shift greatly reduced the processing latency and increased system resiliency. For example, in Reloaded the video quality calculation was implemented inside the video encoder module.

Processing 229

Processing Media Latency Innovation 229

Smashing Magazine

MARCH 25, 2021

For example, a budget can help them decide if a page should contain five images — or three images and one video — and still remain within the planned limits. If you splurge a lot of bytes on nonoptimal videos and images, the rich-media experience will not be so rich anymore. Appeal Of Videos. Large preview ).

Media 117

Media Performance Mobile Latency 117

High Scalability

JANUARY 11, 2022

Generating machine learning based personalized recommendations to discover new people, photos, videos, and stories relevant one’s interest. When a user requests for feed then there will be two parallel threads involved in fetching the user feeds to optimize for latency. Users should be able to like and comment the posts.

Design 334

Design Media Storage Logistics 334

Dynatrace

SEPTEMBER 16, 2022

Watch the video below or read on to learn more about the benefits of an end-to-end platform for mobile app owners. . It shows the complete end-to-end flow from a business perspective, identifying abandonments and the causes behind them, such as latencies or crashes at specific parts of the user journey that hinder conversions. .

Mobile 228

Mobile Metrics Monitoring Latency 228

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. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache 251

Cache Latency Airlines Logistics 251

Dynatrace

JANUARY 13, 2022

Providing insight into the service latency to help developers identify poorly performing code. For example, RUM is often used to measure latency, and the relationship between longer latencies and user disengagement is well documented. Want to learn more? Link RUM business objectives to technical goals.

Monitoring 187

Monitoring Latency Mobile Best Practices 187

Brendan Gregg

FEBRUARY 28, 2023

The video is now on [YouTube]: The slides are [online] and as a [PDF]: first prev next last / permalink/zoom In Q&A I was asked about CXL (compute express link) which was fortunate as I had planned to cover it and then forgot, so the question let me talk about it (although Q&A is missing from the video). Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Dynatrace

JANUARY 26, 2021

REST APIs, authentication, databases, email, and video processing all have a home on serverless platforms. When an application is triggered, it can cause latency as the application starts. This creates latency when they need to restart. Serverless resources are highly flexible and are customized based on the application.

Serverless 245

Serverless Efficiency Lambda Azure 245

Brendan Gregg

MAY 8, 2021

This may be the opposite of my famous [shouting video]: This time I'm suppressing vibration to make a disk work.) From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. Note the sdb latencies range from 32 ms to over 2 seconds!

Performance 142

Performance Latency Speed Systems 142

Brendan Gregg

JULY 4, 2021

The video is on [youtube]: The slides are on [slideshare] or as a [PDF]: I work on many areas of performance, but recently I've had a lot of demand to talk about BPF. Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 140

Performance Latency Hardware Storage 140

The Netflix TechBlog

OCTOBER 26, 2021

Say at Netflix that we run a test that aims to reduce some measure of latency, such as the delay between a member pressing play and video playback commencing. As a result, if the test treatment results in a small reduction in the latency metric, it’s hard to successfully identify?

Testing 202

Testing Latency Metrics Innovation 202

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98

Lambda Latency Cache C++ 98

The Netflix TechBlog

MARCH 10, 2023

Data Sharding strategy in elasticsearch is updated to provide low search latency (as described in blog post) Design of new Cassandra reverse indices to support different sets of queries. Automated workflows are configured for media assets (like inspection) and these workflows are required to be triggered for old existing assets too.

Media 237

Media Traffic Processing Design 237

High Scalability

DECEMBER 7, 2018

It's HighScalability time: This is your 1500ms latency in real life situations - pic.twitter.com/guot8khIPX. heipei : It's Friday, I've been in a jumpsuit doing manual labor all day (crazy, I know) and weighing my options between passing out on the couch over some Youtube videos, reading the Friday @highscal blog post or writing code.

Internet 163

Internet Internet Scalability Blockchain 163

The Netflix TechBlog

NOVEMBER 2, 2021

Moorthy and Zhi Li Introduction Measuring video quality at scale is an essential component of the Netflix streaming pipeline. 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.

Media 171

Media Innovation Metrics Latency 171

Dynatrace

DECEMBER 22, 2019

Amazon Kinesis Video Streams. The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Amazon ElastiCache (see AWS documentation for Memcached and Redis ). Amazon Elasticsearch Service (ES). Amazon Kinesis Data Analytics. Amazon Kinesis Data Firehose. Amazon Kinesis Data Streams (KDS).

AWS 137

AWS Metrics IoT Storage 137

Dynatrace

DECEMBER 22, 2019

Amazon Kinesis Video Streams. The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Amazon ElastiCache (see AWS documentation for Memcached and Redis ). Amazon Elasticsearch Service (ES). Amazon Kinesis Data Analytics. Amazon Kinesis Data Firehose. Amazon Kinesis Data Streams (KDS).

AWS 133

AWS Metrics IoT Storage 133

Brendan Gregg

FEBRUARY 28, 2023

The video is now on YouTube : The slides are online and as a PDF : first prev next last / permalink/zoom In Q&A I was asked about CXL (compute express link) which was fortunate as I had planned to cover it and then forgot, so the question let me talk about it (although Q&A is missing from the video). Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

The Netflix TechBlog

OCTOBER 19, 2020

Investigating a video streaming failure consists of inspecting all aspects of a member account. 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.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

MachMetrics

OCTOBER 16, 2019

However, there is excitement around Starlink for other reasons – namely, the implications it might have for internet speed and latency – even by just a small amount (20 milliseconds on average). Starlink’s Goal: Reduce Internet Latency. What does Starlink and Reduced Latency have to do with me?

Internet 44

Internet Internet Latency Speed 44

The Morning Paper

JULY 4, 2019

Two failure modes we focus on are a service becoming slower (increase in response latency) or a service failing outright (returning errors). An example hypotheses to be tested is that users should still be able to stream video even if the bookmarking service (which remembers their last watched location in a video) is down.

Latency 77

Latency Engineering Metrics Traffic 77

Smashing Magazine

JANUARY 11, 2021

Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Media Metrics 145

The Morning Paper

SEPTEMBER 10, 2019

That’s hard for many reasons, including the differing trade-offs between throughput and latency that need to be made across the use cases. to understand YouTube video performance) drive tens of thousands of canned (known in advance) queries per second, that need to be served with latency in the tens of milliseconds.

Analytics 75

Analytics Latency Cache Google 75

ACM Sigarch

DECEMBER 6, 2018

Each of these categories opens up challenging problems in AI/visual algorithms, high-density computing, bandwidth/latency, distributed systems. One such example is activity recognition in motion video (such as LRCN , Convnets ) which may entail running combinations of both convolutional as well as recurrent neural networks simultaneously.

Wireless 54

Wireless IoT Analytics Architecture 54