Languages & Runtimes

Language ecosystems, compilers, runtimes, package managers, performance, and best practices.

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Inside Languages & Runtimes

Python Data, web, automation, packaging, async, and performance for Python stacks. JavaScript, TypeScript & Node JS runtimes, TypeScript, tooling, and the modern web/server JS ecosystem. Java & Kotlin JVM releases, Spring ecosystem, build tooling, and performance. C & C++ Systems, embedded, toolchains, and modern C/C++ evolution. C# & .NET .NET releases, ASP.NET, MAUI/Blazor, and cross-platform tooling. Go Go releases, modules, concurrency patterns, and backend tooling. Rust Rust editions, Cargo ecosystem, async runtimes, and performance. PHP Modern PHP, frameworks, Composer, and production patterns. Ruby Ruby, Rails, jobs, tooling, and performance changes. Swift & Objective-C Apple platform languages, SwiftUI, and toolchain evolution. SQL, Shell & Data Science SQL, Bash/PowerShell, and scientific computing languages for analysis and ops.

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Latest in Languages & Runtimes


dev.to > serverkueche > netcup-vps-1000-g12-benchmarked-how-fast-is-it-really-5689

netcup VPS 1000 G12 benchmarked: how fast is it really?

1+ hour, 25+ min ago   (890+ words) The VPS 1000 G12 is netcup's entry-level VPS and the server most Serverküche recipes run on. But how fast is it really? We measured it thoroughly with standard tools – and show you the commands you can use to check your own server…...


dev.to > jsmanifest > nextjs-caching-mental-model-in-2026-request-memoization-data-cache-full-route-cache-and-router-1268

Next.js Caching Mental Model in 2026: Request Memoization, Data Cache, Full Route Cache, and Router Cache Explained Once and for All

1+ hour, 53+ min ago   (93+ words) Next.js Caching Mental Model in 2026: Request Memoization, Data Cache, Full Route Cache, and... Tagged with react, nextjs, webdev, javascript....


dev.to > brawnybytes > java-concurrency-multithreading-40-interview-questions-3lpl

Java Concurrency & Multithreading: 40 Interview Questions

1+ hour, 56+ min ago   (829+ words) A process has its own memory space and OS resources; threads live inside a process and share its heap and file handles but keep their own stack and program counter. That shared memory is exactly why threads are cheap to…...


dev.to > debasish87 > how-i-debugged-a-kv-cache-offloading-bug-in-vllm-52lj

How I Debugged a KV-Cache Offloading Bug in vLLM

2+ hour, 23+ min ago   (370+ words) LLM inference performance is often limited by GPU memory rather than raw compute. One of the problems I worked on in vLLM involved KV-cache offloading for models using mixed KV-cache groups. The failure was subtle: the existing logic assumed a…...


dev.to > codenameone > faster-maps-chasing-swiss-speed-pl7

Faster Maps: Chasing Swiss Speed

2+ hour, 34+ min ago   (974+ words) ParparVM fixes pathological map misses and extends tagged boxed values. Probe counts, allocation coverage, and regressions show where ordinary Java collections became cheaper. Tagged with java, mobile, android, ios....


dev.to > parsajiravand > react-derived-state-why-that-usestate-is-probably-a-bug-37h0

React Derived State: Why That useState Is Probably a Bug

2+ hour, 45+ min ago   (1065+ words) Nothing here is exotic. It's one of the most common bugs in React codebases, and it exists because a value that should have been computed got stored instead. This is episode two of React Deep Dive, on what React itself…...


dev.to > devanshu_patil > a-fast-vps-is-useless-if-you-cant-explain-why-its-slow-40jo

A Fast VPS Is Useless If You Can't Explain Why It's Slow

3+ hour, 44+ min ago   (492+ words) One of the most useful habits I've picked up from running applications on my own VPS is this: Don't optimize based on feelings. Measure the request. When a website feels slow, it's tempting to immediately blame the server. Maybe the…...


dev.to > maxslashwang > we-downscaled-a-1080p-video-to-480x270-to-protect-its-quality-1m46

I downscaled a 1080p video to 480x270 to protect its quality

4+ hour, 17+ min ago   (1080+ words) Someone handed my compressor a 1080p clip. It gave back a 480×270 postage stamp. Nothing crashed. Every line did what I wrote it to do. I had written code that looked at that video, decided it was too damaged to deserve its…...


dev.to > nainikmehta > cache-stampede-mitigation-stale-while-revalidate-coalescing-268e

Cache Stampede Mitigation: Stale‑While‑Revalidate & Coalescing

5+ hour, 46+ min ago   (295+ words) Cache stampedes (aka thundering herds) happen when a popular cache entry expires and hundreds or thousands of concurrent requests race to rebuild it. The result: your origin gets hammered, latency spikes, retries amplify the load, and the whole service can…...


dev.to > saltmire > how-to-add-a-loading-screen-with-a-progress-bar-in-godot-4-3pi7

How to add a loading screen with a progress bar in Godot 4

6+ hour, 23+ min ago   (284+ words) Godot 4's ResourceLoader can load a scene in a background thread while your loading screen stays interactive. There are three calls you need: Create a new scene with a CanvasLayer root (name it LoadingScreen) and add two children: a ColorRect…...