All Things Distributed

JUNE 21, 2018

Typical use cases for a relational database include web and mobile applications, enterprise applications, and online gaming. Use cases such as gaming, ad tech, and IoT lend themselves particularly well to the key-value data model where the access patterns require low-latency Gets/Puts for known key values.

Database 167

Database AWS Games Latency 167

Adrian Cockcroft

JANUARY 20, 2023

In recent years GPU development that was originally funded by the gaming market (and ended up being used as a supercomputer accelerator) has been dominated by use in the AI/ML accelerator market. Many HPC workloads synchronize work on a barrier, and work much better if there’s a consistently narrow latency distribution without a long tail.

Architecture 52

Architecture Latency Benchmarking AWS 52

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Alex Russell

DECEMBER 18, 2022

These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache. For example, let's say you send more HTML and less JavaScript, or your serving game is on lock and all critical assets load over a single H/2 link. 4GiB of RAM. Qualcomm has some 'splainin to do.

Performance 120

Performance Mobile Network Latency 120

IO River

NOVEMBER 2, 2023

‍A CDN, or Content Delivery Network, is a network of servers strategically positioned across various locations to expedite content delivery to users based on their geographic location.These patterns split into two main forms of traffic:Static Traffic: When a user request targets static content, the CDN first checks its cache.

Traffic 52

Traffic Cache Servers Network 52

Alex Russell

APRIL 29, 2021

Consistent improvement is the name of the game, and it can still have positive impacts, particularly as users lean on the system more heavily over time. Real-time network protocols for enabling videoconferencing, desktop sharing, and game streaming applications. Critical for gaming with a mouse. Delayed five years. Gamepad API.

Media 145

Media Games Education Engineering 145

IO River

NOVEMBER 2, 2023

A CDN, or Content Delivery Network, is a network of servers strategically positioned across various locations to expedite content delivery to users based on their geographic location.These patterns split into two main forms of traffic:Static Traffic: When a user request targets static content, the CDN first checks its cache.

Traffic 40

Traffic Cache Servers Network 40

All Things Distributed

JULY 14, 2015

Streams provide you with the underlying infrastructure to create new applications, such as continuously updated free-text search indexes, caches, or other creative extensions requiring up-to-date table changes. DynamoDB Streams enables your application to get real-time notifications of your tables’ item-level changes. Summing It All Up.

Database 165

Database Lambda AWS IoT 165

Smashing Magazine

APRIL 17, 2019

The browser caches the results of these lookups, but they can be slow. This enables the browser to get ahead of the game and do more work in parallel, decreasing the overall load time. You might think of a prefetch as being a bit like adding a file to the browser’s cache. When Should I Use dns-prefetch ? The as Attribute.

Performance 107

Performance Games Servers Cache 107

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The fastest Androids predictably remain 18-24 months behind, owing to cheapskate choices about cache sizing by Qualcomm, Samsung Semi, and all the rest. The Moto G4 , for example.

Performance 127

Performance Network Cache Metrics 127

ACM Sigarch

DECEMBER 6, 2018

interactive AR/VR, gaming and critical decision making). Each of these categories opens up challenging problems in AI/visual algorithms, high-density computing, bandwidth/latency, distributed systems. The tremendous growth in visual computing is fueled by the rapid increase in deployment of visual sensing (e.g.

Wireless 54

Wireless IoT Analytics Architecture 54

All Things Distributed

JANUARY 18, 2012

Amazon DynamoDB offers low, predictable latencies at any scale. This is not just predictability of median performance and latency, but also at the end of the distribution (the 99.9th percentile), so we could provide acceptable performance for virtually every customer. s read latency, particularly as dataset sizes grow.

Scalability 165

Scalability Database Ecommerce Latency 165

Smashing Magazine

AUGUST 20, 2021

Platforms such as Snipcart , CommerceLayer , headless Shopify , and Stripe enable you to manage products in a friendly UI while taking advantage of the benefits of Jamstack: Amazon’s famous study reported that for every 100ms in latency, they lose 1% of sales. These workflows are game-changing , so why can’t we do the same thing for content?

Ecommerce 140

Ecommerce Website Government Internet 140

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”. Many sources claim that HTTP/3 is built on top of UDP because of performance.

Transportation 145

Transportation Internet Internet Network 145

CSS Wizardry

MAY 19, 2020

It’s widely accepted that self-hosted fonts are the fastest option: same origin means reduced network negotiation, predictable URLs mean we can preload , self-hosted means we can set our own cache-control. On a high-latency connection, this spells bad news. Put another-other way, this file is latency-bound, not bandwidth-bound.

Google 364

Google Media Latency Metrics 364

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 107

Performance Network Latency Servers 107

All Things Distributed

JUNE 20, 2017

This enables customers to serve content to their end users with low latency, giving them the best application experience. In 2008, AWS opened a point of presence (PoP) in Hong Kong to enable customers to serve content to their end users with low latency. Since then, AWS has added two more PoPs in Hong Kong, the latest in 2016.

AWS 137

AWS Logistics Cloud Social Media 137

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 Servers 145

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. PRPL stands for Pushing critical resource, Rendering initial route, Pre-caching remaining routes and Lazy-loading remaining routes on demand. An application shell is the minimal HTML, CSS, and JavaScript powering a user interface.

Performance 105

Performance Cache Network Metrics 105

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. This improves page load time and caching during navigations.

Performance 145

Performance Cache Media Metrics 145