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. This is where a well-architected Content Delivery Network (CDN) shines. Â The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings.

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. This is where a well-architected Content Delivery Network (CDN) shines. The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings.

Architecture 52

Architecture Performance Internet Internet 52

Dotcom-Montior

NOVEMBER 24, 2021

There was a time when standing up a website or application was simple and straightforward and not the complex networks they are today. By definition, a distributed system is any system that comprises of multiple components on variety of machines that work together to appear as a single, organized system. The recipe was straightforward.

Systems 74

Systems Monitoring Hardware Network 74

Smashing Magazine

AUGUST 22, 2021

As we will see, QUIC and HTTP/3 indeed have great web performance potential, but mainly for users on slow networks. If your average visitor is on a fast cabled or cellular network, they probably won’t benefit from the new protocols all that much. Two-way latency is often called round-trip time (RTT). Congestion Control.

Performance 106

Performance Network Latency Servers 106

KeyCDN

FEBRUARY 4, 2021

For example, if a lookup fails and times out to your first DNS server it queries the next DNS server until the correct IP address is returned, or it is unable to resolve as seen in the infamous "This webpage is not available" error below. So DNS services definitely go down! Speed Speed also plays a role with DNS.

Cache 134

Cache Website Internet Internet 134

All Things Distributed

JULY 20, 2015

A cluster is just a pool of compute resources available to a customer’s applications. The pool of resources, at this time, is the CPU, memory, and networking resources of Amazon EC2 instances as partitioned by containers. The agent is written in Go, has a minimal footprint, and is available on GitHub under an Apache license.

Latency 166

Latency Architecture AWS Open Source 166

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. You need to beware that slow server response times can significantly increase TTFB, often due to server overload, network issues, or un-optimized logic on the server side. You need to beware of large HTML files or slow network connections because they can lead to longer download times.

Performance 74

Performance Cache Traffic Metrics 74

Smashing Magazine

AUGUST 10, 2023

Even with all of the available tools at my disposal, I still find myself reaching for several of them. The other issue is that the data I’m getting back is based on lab simulations where I can add throttling, determine the device that’s used, and the network connection, among other simulated conditions. Lighthouse results.

Speed 81

Speed Monitoring Testing Network 81

The Netflix TechBlog

DECEMBER 21, 2020

These principles reduce resource usage by being more efficient and effective while lowering the end-to-end latency in data processing. It is responsible for listening to incoming events and requests and prioritizing different tables and actions to make the best usage of the available resources. More processing resources.

Storage 203

Storage Latency Efficiency Data Engineering 203

Dynatrace

JULY 10, 2019

For example, the number of threads of your process is already available in Dynatrace in most cases, so there is no need to spend the extra effort. With insights from Dynatrace into network latency and utilization of your cloud resources, you can design your scaling mechanisms and save on costly CPU hours.

Java 140

Java Best Practices Metrics Azure 140

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. In DevTools, the Network inspector helps us see what the first webpage is doing too.

Cache 92

Cache Social Media Media Network 92

High Scalability

FEBRUARY 19, 2021

As a basis for that discussion, first some definitions: Dependability The degree to which a product or service can be relied upon. Availability and Reliability are forms of dependability. Availability The degree to which a product or service is available for use when required. Availability, reliability, and state.

Engineering 215

Engineering Systems Scalability Availability 215

Particular Software

JUNE 3, 2019

The availability of bandwidth increases at a staggering rate, but we're never happy. We now live in an age when it's possible to stream high definition TV, and yet we are not satisfied. Even within a LAN, network congestion and its effect on bandwidth can have a noticeable impact on the applications we develop.

Latency 40

Latency Speed Network Strategy 40

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

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”. and lower), this typically takes two network round trips.

Transportation 145

Transportation Internet Internet Network 145

Dotcom-Montior

DECEMBER 8, 2021

By ITIL definition, the service desk may take the form of incident resolution or service requests, but whatever the case, the primary goal of the service desk to provide quick and efficient service. 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

Rigor

DECEMBER 19, 2019

Reading time 4 min It’s important for both technical and business teams to understand the different web performance monitoring options that are available as well as their various use cases and the benefits of each. This is valuable because it allows users to block out much of the noise that is reported with real user monitoring.

Monitoring 40

Monitoring Benchmarking Website Traffic 40

Smashing Magazine

JANUARY 11, 2021

Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. Layout Shift GIF Generator that visualizes CLS with a simple GIF (also available from the command line). If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled 3G network (e.g. 300ms RTT, 1.6

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. Network Configuration.

Network 105

Network Servers Cache Traffic 105

All Things Distributed

DECEMBER 5, 2010

I am very excited that today we have launched Amazon Route 53, a high-performance and highly-available Domain Name System (DNS) service. Authoritative servers hold the definitive mappings. Route 53 provides Authoritative DNS functionality implemented using a world-wide network of highly-available DNS servers.

Cloud 117

Cloud Internet Internet AWS 117

Abhishek Tiwari

DECEMBER 27, 2017

optimised container networking and security. Kubernetes has all necessary primitives available to make it happen. A few years back, Hortonworks tried to create a fork of Kubernetes with YARN scheduler [15] but at that time support for multiple schedulers was not available in Kubernetes.

Big Data 63

Big Data Storage Benchmarking Hardware 63

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. Any DOM or UI created in JS is not available for use until the script runs. The median user is on a slow network. Global Ground-Truth. Where to start?

Performance 68

Performance Benchmarking Network Mobile 68

Alex Russell

JULY 14, 2021

I've got a long blog post brewing on this, but jumping to the end, an operable definition is: A browser is an application that can register with an OS to handle http and https navigations by default. On Android today and early iOS versions, WebViews allow embedders to observe and modify all network traffic (regardless of encryption).

Google 121

Google Mobile Engineering Internet 121

O'Reilly Software

APRIL 4, 2018

They have a clear input and output definition, and often a schema as well. A message-oriented implementation requires an efficient messaging backbone that facilitates the exchange of data in a reliable and secure way with the lowest latency possible. Leverage the convergence of fast data and microservices.

Architecture 80

Architecture Scalability Google Operating System 80

KeyCDN

SEPTEMBER 12, 2019

An easy way to compress images is with our image processing service that happens to also be fully integrated into our existing network. The PHP library for the API is available on GitHub. Indexing Images When it comes to Google finding your images you definitely want to make sure they are indexing properly.

Social Media 106

Social Media Media Google Website 106

Percona

MAY 2, 2023

Hence, the node would still be available for other operations. Cons of logical backups As it reads all data, it can be slow and will require disk reads too for databases that are larger than the RAM available for the WT cache—the WT cache pressure increases, which slows down the performance. Records backup progress logging.

Best Practices 52

Best Practices Database Storage Servers 52

Smashing Magazine

JANUARY 6, 2020

Usually, the most specific and relevant ones are: Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. 300ms RTT, 1.6 Mbps down, 0.8

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Time to Interactive (TTI) The point at which layout has stabilized, key webfonts are visible, and the main thread is available enough to handle user input — basically the time mark when a user can interact with the UI. If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled network (e.g.

Performance 104

Performance Cache Network Metrics 104

John McCalpin

NOVEMBER 5, 2016

These cores have 2 functional units supporting Vector Fused Multiply-Add instructions, with 5-cycle latency on Haswell/Broadwell and 4-cycle latency on Skylake processors (ref: [link] ). With 2 FMA units that have 5-cycle latency, the code must implement at least 2*5=10 independent accumulators in order to avoid stalls.

Cache 40

Cache C++ Latency Hardware 40

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

SQL Server According to Bob

JANUARY 11, 2020

Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Many of these systems support I/O ordering with a stable media cache and subsequently combine and/or split I/O requests across available subsystem resources to complete the storing to physical media.

Servers 40

Servers Cache Media Hardware 40