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Java 27???值得关注的新特???
1+ hour, 37+ min ago (89+ words) Java 开发者们，Java 27 即将在本周二（9 月 15 日）正式发布！ 发布时间：2026 年 9 月 15 日 核心焦点：共计 9 个 JEP（4 个正式特性，5 个预览/孵化特性） Java 27 通过 JEP 523 将 G1 GC 设置为全局默认垃圾回收器，彻底终结了这一行为差异。 紧凑对象头（Compact Object Headers）在 JDK 25 中作为正式功能引入，而在 Java 27 中正式通过 JEP 534 调整为默认启用！ 这一改动显著降低了对象占据的内存空间，从而直接减轻 CPU…...
Design YouTube — Video Upload, Transcoding & CDN Delivery at Scale (with Production.NET Code)
1+ hour, 34+ min ago (420+ words) This is the condensed walkthrough; the full guide (estimates, API, data model, and the full production.NET 9 code) is on my site 👇 The two sides scale very differently: Storage and transcode compute dominate the write side; the CDN is not…...
canvas.toBlob('image/avif') silently returns a PNG. Here's how I shipped AVIF export anyway
2+ hour, 20+ min ago (485+ words) If you have ever written canvas.toBlob(callback, 'image/avif'), there is a good chance your users have been downloading PNG files with an.avif name. That is what happened to me. I build Filewhisk, a set of image tools…...
Flutter Repaints: RepaintBoundary, Layers & Rendering Performance
3+ hour, 32+ min ago (8+ words) “” is published by Developer Hub in Flutter Hub....
Scaling Event-Driven APIs: Real-Time WebSockets and Redis Pub/Sub for High-Concurrency Apps
8+ hour, 3+ min ago (480+ words) From a business perspective, system instability during peak usage events directly damages user retention, degrades brand trust, and triggers SLA violations. For e-commerce, financial platforms, and real-time gaming, a latency spike or dropped connection state can result in direct financial…...
The more aggressive matmul kernel lost to the register budget
9+ hour, 6+ min ago (171+ words) The WebGPU matmul sweep started with a naive kernel, then added 16 by 16 workgroup tiling and a 4 by 4 output block per thread. At a 2048 cubed matrix size, the measured time moved from 47.24 ms for the naive kernel to 17.23 ms for tiling…...
Stop Making Your React Components Reusable | React Design
10+ hour, 34+ min ago (502+ words) In the modern React ecosystem, "reusability" has been elevated from a best practice to a full-blown theology. We are taught from our first tutorial that DRY (Don't Repeat Yourself) is the ultimate virtue. If you write the same button twice,…...
When a Zero-Parameter Cache Overtakes a Transformer
10+ hour, 37+ min ago (574+ words) The question this series exists to answer, put in a form that can be measured: a transformer sees a fixed 64-token window, a count table over the current document sees the whole document, and as documents get longer, how much…...
We Took One App From 12 Users to 100,000. Here’s Every Time It Broke.
6+ hour, 57+ min ago (1485+ words) A build log, in order. The app is a prop. The failures are real, and they arrive in a predictable sequence. Most scaling …...
How to Bulk Download Images: From URL Lists to a ZIP File
12+ hour, 1+ min ago (1250+ words) The most useful starting point is a list of direct image URLs. Once you have that list, you can download the files together with a browser tool or a small command-line workflow. This tutorial covers both approaches, plus a JavaScript…...