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

DECEMBER 27, 2022

First, it helps to understand that applications and all the services and infrastructure that support them generate telemetry data based on traffic from real users. Latency is the time that it takes a request to be served. Availability. To measure availability, we can rely on an HTTP monitor from Dynatrace Synthetic Monitoring.

Software 259

Software Software Benchmarking Latency 259

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

The Netflix TechBlog

MARCH 10, 2023

Existing data got updated to be backward compatible without impacting the existing running production traffic. 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.

Media 237

Media Traffic Processing Design 237

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

IO River

NOVEMBER 2, 2023

‍Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. ‍But how does it decide where to send this traffic?

Traffic 52

Traffic Cache Servers Latency 52

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

IO River

NOVEMBER 2, 2023

Just as a well-coordinated airport directs flights to multiple runways based on traffic and weather conditions, a CDN with Multiple Origins Load Balancing ensures that web traffic is distributed across various data centers, optimizing performance and reliability. But how does it decide where to send this traffic?

Traffic 40

Traffic Cache Network Servers 40

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). Mu is the mean of each component, the latency. I’ve been thinking about this for a long time.

Lambda 98

Lambda Latency Cache C++ 98

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. If that is available, then a positive response is received. Network latency.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Smashing Magazine

AUGUST 3, 2023

It increases our visibility and enables us to draw a steady stream of organic (or “free”) traffic to our site. While paid marketing strategies like Google Ads play a part in our approach as well, enhancing our organic traffic remains a major priority. The higher our organic traffic, the more profitable we become as a company.

Performance 74

Performance Cache Traffic Metrics 74

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. CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. You can then mimic the 90th percentile’s experience for testing. Large preview ).

Performance 145

Performance Cache Media Metrics 145

O'Reilly

DECEMBER 2, 2019

I don’t need more bandwidth for video conferences or movies, but I would like to be able to download operating system updates and other large items in seconds rather than minutes. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions. At a gigabit, you don’t have to think twice.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 124

Metrics Government Systems Testing 124

Percona

APRIL 17, 2023

Note that the intent of tuning the settings is not exclusively about improving performance but also enhancing the high availability and resilience of the MongoDB database. There is an issue with this, which causes the OS to swap even with memory available. The CFQ works well for many general use cases but lacks latency guarantees.

Best Practices 52

Best Practices Design Tuning Database 52

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 100

Metrics Government Systems Testing 100

The Netflix TechBlog

NOVEMBER 12, 2019

We also apply additional business logic to handle constraints like maturity filtering and deduplication of videos. The real pages we presented to our members are the result of ranking videos and rows from our current production page generation models.

Metrics 100

Metrics Government Systems Testing 100

Smashing Magazine

JANUARY 6, 2020

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik and detailed guide by Rick Viscomi) or Treo Sites , a RUM monitoring tool that is powered by Chrome UX Report. You can then mimic the 90th percentile’s experience for testing.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Large preview ).

Performance 103

Performance Cache Metrics Network 103

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 105

Performance Network Latency Servers 105

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. We had an advanced team of database administrators and access to top experts within Oracle.

Internet 128

Internet Internet AWS Performance 128

All Things Distributed

MARCH 11, 2016

But we couldn’t adopt the old style approach of upgrading systems through a maintenance outage, as many businesses around the world are relying on our platform for 24/7 availability. This lowered latency more than 2x and delivered more than 10x improvement in latency variability on the network. The importance of the network.

AWS 144

AWS Hardware Retail Virtualization 144

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”. TLS, TCP, and QUIC handshake durations ( Large preview ).

Transportation 145

Transportation Internet Internet Network 145