Modern Hardware for Future Databases

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lobste.rs

Modern Hardware for Future Databases

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Pipe Viewer – A Unix Utility You Should Know About https://catonmat.net/unix-utilities-pipe-viewer

catonmat.net

Pipe Viewer – A Unix Utility You Should Know About

Hi all! I'm starting a new article series here. This one is going to be about Unix utilities that you should know about. The articles will discuss one Unix program at a time. I'll try to write a good introduction to the tool and give as many examples as I…

#今天又看了啥
https://www.v2ex.com/t/1090663

嗯，合理的。

V2EX

突然感受到一年级那堂作文课对我这些年的影响 - V2EX

生活 - @Noicdi - 还记得一年级时，与班上几个同学参加区级的作文竞赛。写下的作文不必多说，幼稚且无意义，但是参加比赛前，语文老师为我们上的一堂作文课，至今还记得一些内容：1. 一般来说一个标点符号占据一个作文格子

What does f(x) mean in C++?

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bioweapon

What does f(x) mean in C++?

Intro

前阵子推荐过的ppresume作者，写了一篇长文讲解排版引擎的工作原理：

中文版：《排版引擎纵谈：程序员的视角》
英文版：《On Typesetting Engines: A Programmer's Perspective》

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#独立开发
PPResume(https://ppresume.com) 是一个基于 LaTeX 的简历生成器，目标是帮助人们在几分钟内创建一份精美的简历，并提供极高质量的排版和 PDF 输出。

除了在排版上有非常细致的考量外，PPResume 在产品设计和用户体验上也有一些独到的思考，特别是提供了强大直观的 Dashboard，支持实时的输入验证、丰富的输入控件、结构化编辑、定制化布局，来辅助整个简历的撰写过程，让你专注用简历内容，避免一些低级错误。

PPResume 应该也是市面上唯一一款支持多…

The BPF instruction set architecture is now RFC 9669
corbet - November 05, 2024 at 04:43PM

After a couple of years of effort, the BPF instruction set architecture hasbeen accepted as RFC9669, giving it a standard outside of the in-kernel implementation. This message from DavidVernet (who also contributed an article onthe standardization process last year) describes the process and why itis important: Though some vendors have already implemented BPF offloading capabilities without having a standardized ISA, others are not quite as risk tolerant. As Christoph [Hellwig] discussed at LSFMM 2022, certain NVMe vendors have expressed an interest in building BPF offloading capabilities for various use cases such as eXpress Resubmission Path (XRP), but they simply can't fund such a project without certain components of BPF being standardized. Hence, the effort to standardize BPF was born.

Full Article: https://lwn.net/Articles/997002/

www.rfc-editor.org

RFC 9669: BPF Instruction Set Architecture (ISA)

eBPF (which is no longer an acronym for anything), also commonly
referred to as BPF, is a technology with origins in the Linux kernel
that can run untrusted programs in a privileged context such as an
operating system kernel. This document…

FFmpeg 手写 AVX512 汇编代码性能提升最多 94 倍
#开源

开源多媒体编解码器项目 FFmpeg 的开发者通过手写实现优化了 AVX-512 指令集的汇编代码路径，加速 FFmpeg 多媒体处理库中的特定功能，相比标准实现，性能提升了 3-94 倍。手写汇编代码路径在视频行业是相当少见的。AVX-512 支持使用 512 位寄存器并行处理大量数据，一次操作能处理最多 16 个单精度 FLOPS 或 8 个双精度 FLOPS，它对视频和图像处理等计算密集型任务很有用。英特尔 12 到 14 代酷睿处理器禁用了 AVX-512 指令集，目前完整支持 AVX-512 的消费者 CPU 是 AMD 最近上市的 Ryzen 9000 系列处理器。
https://news.slashdot.org/story/24/11/04/2140206/ffmpeg-devs-boast-of-up-to-94x-performance-boost-after-implementing-handwritten-avx-512-assembly-code

刚刚更新了 Firefox，顺便又测试了一下 Firefox 的垂直标签栏功能。垂直标签栏功能一直在 beta 测试中，之前各种小毛病不断，但目前在最新稳定版本中的垂直标签栏功能已经有基本的可用性了。但是否有隐藏的问题还需要进一步使用测试。

Firefox 版本：Firefox 132.0.1 64-bit

开启方法：前往 about:config 将 sidebar.verticalTabs 置为 true 即可

Principles of Dependent Type Theory

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Copilot as a C++ name mangler

学习

Toward safe transmutation in Rust

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lobste.rs

Toward safe transmutation in Rust

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A comparison of Rust’s borrow checker to the one in C#

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via em-tg.github.io via kornel

lobste.rs

A comparison of Rust’s borrow checker to the one in C#

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