~betterdevlink | Issues #254 Apr 1, 2024 (24)

Garbage Collection for Systems Programmers Let’s talk about one of the most performance-sensitive programs you run every day: your operating system. Since every speedup gives you more computer to compute with, an OS is never fast enough, so you can always find kernel and driver developers optimizing the bejesus out of their code.

JavaScript Visualized: Promise Execution Due to its easi of use, and its forgiven model, promise remain an unclear? should I use return Promise<Value> or, return Promise.Resolve(value). all of that. Let look deeper to understand their execution model.

Hacking our PostgreSQL driver to get more out of Amazon RDS performance insights In the process of improving Knock performance, Knock engineers found ourselves in the weeds hacking our Postgres driver, and we wanted to share some fun learnings we’ve gathered so far.

Running a Raspberry Pi with a read-only root filesystem Many applications that run on Raspberry Pis and similar single-board computers — for example, environmental data loggers that report to a central database server — don’t really need to store any state locally on the Pi’s SD card. This means you can run the Pi with a read-only root filesystem, which will dramatically increase the...

How does Linux nat a ping Pretty much any home computers are behind a NAT, mean multiple computer share a same public ip. In the TCP/UDP packet, there is a port, the pair ip:port can be used to track which host and send the packet back. But ping operate with ICMP, and ICMP packet doesnt have a port field. So how does NAT work...

Attacker Techniques: Gesture Jacking When a website ask you to hold down a key, what can happen? What is User Gesture? How to defend.

File Monitoring with eBPF and Tetragon Anytime you start to implement HIPAA, SOC, NIST PCE-DSS, the file integrity monitoring come up? who changed this file? when? what is changed? In this articule, we look into that with Tetragon. Not just for security, say you have a config file, such as an env file that is source before application run, tracking changes to this file...

finding memory leaks in Postgres C Code What is the process of this? what tooling, what setup, what is a step by step guide in layman term.

Digital wallets and the “only Apple Pay does this” mythology Apple Pay is great, but I think there is some misunderstanding out there about the details of how it works.

Memory leaks in Go A useful article to go over commont leaks in Go, method to find them.

charcoal Faster utf8.Valid using multi-byte processing without SIMD. Up to 50% faster than the standard library. Can be a useful tool to deal with email parser for example where we want to filter out non utf8 character

node-sql-parser Parse simple SQL statements into an abstract syntax tree (AST) with the visited tableList and convert it back to SQL

noticed a gem that allows your application to send notifications of varying types, over various mediums, to various recipients. Be it a Slack notification to your own team when some internal event occurs or a notification to your user, sent as a text message, email, and real-time UI element in the browser, Noticed supports all of the above (at the same time)!

pglite Lightweight Postgres packaged as WASM into a TypeScript library for the browser, Node.js, Bun and Deno. Use case is you may run an interactive embeded postgres in browser for a playground postgres application.

tetragon owerful real-time, eBPF-based Security Observability and Runtime Enforcement such as monitoring file changes, block operation to file etc.

monogon A pure Go minimal operating system. Based on Linux and K8S. It runs on a fleet of bare metal or cloud machines and provides users with a hardened, production ready Kubernetes, without the overhead of traditional Linux distributions or configuration management systems.

Atlassian Pragmatic drag and drop a performance focused drag and drop library that can be used to power any drag and drop experience on any tech stack. Pragmatic drag and drop makes working with the browsers powerful and flexible built in drag and drop functionality safe and easy.