System Architecture

OSv is an open source project to build the best OS for cloud workloads

Many proposals have been made to add semantics to IP packets by placing additional information in existing fields, by adding semantics to IP addresses themselves, or by adding fields. The intent is to facilitate enhanced routing/forwarding decisions based on these additional semantics to provide differentiated forwarding paths for different packet flows distinct from simple shortest path first routing. The process is defined as Semantic Routing. This document provides a brief introduction to Semantic Routing.

When doing systems programming we often need to wait for something to happen. Common examples might be waiting for some data to come through a socket or waiting on a lock. We also often want to wait on any of several conditions to become true. A web server might be handling many sockets at once, waiting for any number of them to become readable or writeable. This short blog post is concerned with the latter scenario in Linux. Until recently there was no generic framework which allowed us to wait on many arbitrary events, but now there is, thanks to `io_uring`.

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Essential concepts and practical applications

In many monolithic applications, transactions ensure consistency and isolation when making changes to the application state.

Modern JavaScript frameworks like React and Vue have popularized functional and declarative approaches to web development. While these frameworks have made creating dynamic web applications more accessible, it's worth exploring the potential of web components in this evolving landscape. Lit, with its minimalistic and declarative approach, stands out as an appealing base for leveraging web components in modern frontend development.

This is another post in our Code Health series. A version of this post originally appeared in Google bathrooms worldwide as a Google Tes...

It’s easy to get carried away when you’re building a new web app. You’ve got big ideas, you picture millions of users flocking to your platform, and you start imagining the kind of infrastructure needed to handle all that traffic. So, you build for scale from day one—optimising databases, setting up powerful servers, and ensuring everything is robust enough for massive growth.

Today the Direct3D and HLSL teams are excited to share some insight into the next big step for GPU programmability. Once Shader Model 7 is released, DirectX 12 will accept shaders compiled to SPIR-V™. The HLSL team is committed to open development processes and collaborating with The Khronos® Group and LLVM Project. We’re sharing this […]

Caching is hard. So hard. But also, we are so fucking bad at it. Every time I have to use a public wifi setup I have a joker moment. Does absolutely nobody test...

We had originally planned to go all-in on passkeys for ONCE/Campfire, and we built the early authentication system entirely around that. It was not a simple setup! Handling passkeys properly is surprisingly complicated on the backend, but we got it done. Unfortunately, the user experience kinda sucked, so we ended up ripping it all out...

There are several things I would like to see improve with the Vision Pro (and VR hardware in general), but it’s recently hit me that the main issue I have with using it is that despite all of the video passthrough and digital eyes on the outside of the

The Apache License is a permissive free software license written by the Apache Software Foundation (ASF). It allows users to use the software for any purpose, to distribute it, to modify it, and to distribute modified versions of the software under the terms of the license, without concern for royalties. The ASF and its projects release their software products under the Apache License. The license is also used by many non-ASF projects.

Everything you need to quickly get prepared for FAANG system design interviews. Written by former Meta and Amazon interviewers, this guide breaks down the core concepts, patterns, frameworks, and technologies needed to ace your system design interviews. It also breaks down some of the most commonly asked system design questions and provides detailed answers.

A smart card (SC), chip card, or integrated circuit card, is a card used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip. Many smart cards include a pattern of metal contacts to electrically connect to the internal chip. Others are contactless, and some are both. Smart cards can provide personal identification, authentication, data storage, and application processing. Applications include identification, financial, public transit, computer security, schools, and healthcare. Smart cards may provide strong security authentication for single sign-on (SSO) within organizations. Numerous nations have deployed smart cards throughout their populations.

esProc SPL is a scripting language for data processing, with well-designed rich library functions and powerful syntax, which can be executed in a Java program through JDBC interface and computing i...

Vidhya Arvind, Rajasekhar Ummadisetty, Joey Lynch, Vinay Chella

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What is fuzzy matching? Learn different string-searching algorithms you can use and examples of how to overcome major side effect without losing relevance.

How to effectively perform large scale cross-system data reconciliation (beginner level)

Read our comprehensive guide on fuzzy matching to learn about fuzzy matching benefits, use cases, implementation, and fuzzy search algorithms

Fuzzy matching identifies the likelihood that two records are a true match based on whether they agree or disagree on the various identifiers

Python fuzzy string matching. Learn about Levenshtein Distance and how to approximately match strings. Determine how similar your data is by going over various examples today!

The ultimate guide to Fuzzy Search and Fuzzy Matching. Improve data quality and streamline processes with this guide.

In computer science, approximate string matching is the technique of finding strings that match a pattern approximately. The problem of approximate string matching is typically divided into two sub-problems: finding approximate substring matches inside a given string and finding dictionary strings that match the pattern approximately.