Testsigma

DECEMBER 12, 2020

To ease out the web development, developers think of new ways to have a dedicated and organised system of sustainable websites such as subgrids. Let alone browsers, the website may get into trouble for different resolutions, different operating systems and different browser versions too!! Challenges In Cross-Browser Testing.

Testing 53

Testing Operating System Website Latency 53

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions.

Software 78

Software Software Google Hardware 78

All Things Distributed

JULY 20, 2015

To achieve concurrency control, we implemented Amazon ECS using one of Amazon’s core distributed systems primitives: a Paxos-based transactional journal based data store that keeps a record of every change made to a data entry. task definition). latency and stability) with Empire as well as security benefits.

Latency 166

Latency Architecture AWS Open Source 166

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. This is why the async and deferred attributes are crucial, as they ensure an efficient, seamless web browsing experience. I know that is a lot of information to unpack in a single sitting, and it definitely took our team time to wrap our minds around what it takes to achieve a low LCP score.

Performance 74

Performance Cache Traffic Metrics 74

Percona

MAY 15, 2023

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS rules. This level of distribution will seriously affect the efficiency of the operation, which will increase the response time significantly. This is it.

Traffic 127

Traffic Scalability Database Servers 127

All Things Distributed

JULY 14, 2015

In this blog post, I will explain how these three new capabilities empower you to build applications with distributed systems architecture and create responsive, reliable, and high-performance applications using DynamoDB that work at any scale. DynamoDB Streams simplifies and improves this design pattern with a distributed systems approach.

Database 167

Database Lambda AWS IoT 167

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience. This is where large-scale system migrations come into play.

Traffic 279

Traffic Metrics Systems Strategy 279

CSS - Tricks

MARCH 16, 2020

If not, then check your Node installation is working and you’re definitely in the correct project directory. then(chrome => { const opts = { port: chrome.port }; lighthouse(url, opts); }); }; If you were to execute this code, you’ll notice that something definitely seems to be happening. module called fs (short for "file system").

Google 82

Google Latency Website Metrics 82

O'Reilly Software

APRIL 4, 2018

Are there inherent time relationships in the messages that need to be preserved as they travel across the system? They have a clear input and output definition, and often a schema as well. When we work on a single machine, the operating system takes care of managing the resources allocated to applications. At least once?

Architecture 80

Architecture Scalability Google Operating System 80

The Netflix TechBlog

JULY 26, 2021

This happens at an unprecedented scale and introduces many interesting challenges; one of the challenges is how to provide visibility of Studio data across multiple phases and systems to facilitate operational excellence and empower decision making. The audits check for equality (i.e.

Big Data 253

Big Data Government Analytics Processing 253

Alex Russell

JANUARY 30, 2024

Device Tier Fleet % Definition Low-end 45% Either: <= 4 cores, or <= 4GB RAM Medium 48% HDD (not SSD ), or 4-16 GB RAM, or 4-8 cores High 7% SSD + > 8 cores + > 16GB RAM 20% of users are on HDD s (not SSD s) and nearly all of those users also have low (and slow) cores. was a system properly localised?

Performance 90

Performance Network Mobile Speed 90

The Netflix TechBlog

JANUARY 10, 2024

Since then, the video pipeline has undergone substantial improvements and broad expansions: Starting with Standard Dynamic Range (SDR) at Standard-Definitions , we expanded the encoding pipeline to 4K and High Dynamic Range (HDR) which enabled support for our premium offering. This introductory blog focuses on an overview of our journey.

Processing 229

Processing Media Latency Innovation 229

Alex Russell

JULY 14, 2021

The predominant desktop situation is relatively straightforward: Browsers handle links, and non-browsers defer loading http and https URLs to the system, which in turn invokes the default browser. Instead, they load content referred by their hosting native app in system-provided WebViews. The Baseline Scenario #. " you might ask?

Google 121

Google Mobile Engineering Internet 121

The Netflix TechBlog

DECEMBER 21, 2020

We built AutoOptimize to efficiently and transparently optimize the data and metadata storage layout while maximizing their cost and performance benefits. This article will list some of the use cases of AutoOptimize, discuss the design principles that help enhance efficiency, and present the high-level architecture.

Storage 203

Storage Latency Efficiency Data Engineering 203

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. This means a system that is not merely available but is also engineered with extensive redundant measures to continue to work as its users expect. Availability and Reliability are forms of dependability.

Engineering 215

Engineering Systems Scalability Availability 215

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Some systems show median RTTs near ~100ms for 3G users. Contended, over-subscribed cells can make “fast” networks brutally slow, transport variance can make TCP much less efficient , and the bursty nature of web traffic works against us.

Performance 68

Performance Benchmarking Network Mobile 68

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 Hit Ctrl-C to end. ^C

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Server According to Bob

JANUARY 11, 2020

This will help you increase system performance and avoid I/O environment errors. Important When planning, deploying, and maintaining a Microsoft SQL Server installation, ensure that the I/O system supports all the factors outlined in this article. The modifications persist even in the event of a system failure.

Servers 40

Servers Cache Media Hardware 40

The Netflix TechBlog

JULY 12, 2019

Gatekeeper is the system at Netflix responsible for evaluating the “liveness” of videos and assets on the site. Gatekeeper accomplishes its prescribed task by aggregating data from multiple upstream systems, applying some business logic, then producing an output detailing the status of each video in each country.

Cache 183

Cache Architecture Latency Engineering 183

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. In exchange, your team gains maintainability and developer efficiency, of course. Per se, GraphQL is a query language for your API, and a server-side runtime for executing queries by using a type system you define for your data.

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 11, 2021

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Designed for the modern web, it responds to actual congestion, rather than packet loss like TCP does, it is significantly faster , with higher throughput and lower latency — and the algorithm works differently.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Designed for the modern web, it responds to actual congestion, rather than packet loss like TCP does, it is significantly faster , with higher throughput and lower latency — and the algorithm works differently.

Performance 145

Performance Cache Network Metrics 145

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

Smashing Magazine

SEPTEMBER 6, 2021

For example, you could reduce compression efficiency , because that works better with more data. Finally, not inlining resources has an added latency cost because the file needs to be requested. As discussed in part 2 , in HTTP/2, this multiplexing is steered using its prioritization system.

Network 104

Network Servers Cache Traffic 104