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搜索：SO_REUSEPORT

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操作系统内功 · 第 25 篇｜epoll 惊群与 SO_REUSEPORT：多进程抢连接的三代方案
多个进程等待同一个监听 socket，新连接到来时全部被唤醒却只有一个能 accept——这就是惊群。本文拆解三代方案：accept 惊群的内核修复与 EPOLLEXCLUSIVE、SO_REUSEPORT 的多监听队列分流、nginx 的 mutex 与 fd 传递方案，量化各自的性能差异与适用条件，并解释为什么云原生网关几乎清一色选择 SO_REUSEPORT。
后端技术 精选 · 原创 · 昨天 阅读 4·访客 4
AI was supposed to hit new grads hard. So far, unemployment data says otherwise.
Last month, we shared word of a Stanford study that found entry-level employment in so-called "AI-impacted" occupations …
研究前沿 Ars Technica · 9-26 阅读 39·访客 39
I’m so mad that I love Orion’s $2,195 AI mattress pad
Sleeping on the Orion is like flipping your pillow to find “the cool side,” except that your entire bed is the cool side…
行业动态 TechCrunch · 9-18 阅读 29·访客 29
One Model to Loop Them All: Elastic Latent Recurrence for Language Models
A latent recurrent language model applies a shared block of layers repeatedly, so one checkpoint can trade inference com…
行业动态 HuggingFace Daily Papers · 10-8 阅读 20·访客 20
Frozen Models, Evolving Expertise: Model-Agnostic Learning from Deployment Experience for Multimodal Medical AI
Large language models (LLMs) and vision-language models (VLMs) are usually frozen after deployment, so they do not learn…
大模型 HuggingFace Daily Papers · 10-6 阅读 14·访客 14
AdvSim2Real : Training Web Agents Against Adaptive Prompt Injection in a Web World Model
Web agents complete user requests by reading and acting on pages that third parties write, so an instruction planted on …
智能体 HuggingFace Daily Papers · 10-6 阅读 57·访客 55
NeMo-DCR: Bit-Exact Delta-Compressed Refit for Scalable Agentic RL at Trillion-Parameter Scale
Agentic reinforcement learning (RL) disaggregates training from rollout, so each policy update must reach the rollout cl…
智能体 HuggingFace Daily Papers · 10-6 阅读 56·访客 55
Learning Native Reflection in Unified Models with Interleaved Reinforcement Learning
Unified multimodal models can both look at and render images, so in principle they can repair their own generations: dia…
智能体 HuggingFace Daily Papers · 9-28 阅读 54·访客 53
Meta admits Muse’s likeness to OpenClaw isn’t a coincidence
Early adopters of Meta’s Muse have been speculating that the reason the AI works so well is because it’s OpenClaw under …
智能体 TechCrunch · 9-23 阅读 68·访客 66
Sakeena Fiza Helps NVIDIA Hardware Succeed at Scale
When Sakeena Fiza describes her work as a validation engineer at NVIDIA, she does so in terms more befitting a detective…
行业动态 NVIDIA Blog · 9-23 阅读 34·访客 34
ImIR: Image-Instruction Tuning for All-in-One Image Restoration
Degradations vary widely across images, so a practical restoration system has to handle many degradation types with one …
行业动态 HuggingFace Daily Papers · 9-21 阅读 34·访客 34
Google’s new ‘CC’ is an AI agent that helps families run their households
Google is refocusing its CC AI agent on household coordination, letting families share emails, schedules, and tasks so t…
智能体 TechCrunch · 9-19 阅读 92·访客 90
ModaLens: Measuring Image Sensitivity in Report-Conditioned Medical VLMs
A radiology report can already answer a clinical question, so it is hard to tell whether a vision-language model also us…
行业动态 HuggingFace Daily Papers · 9-14 阅读 29·访客 29
Omni-Streaming Thinking
Streaming omni-modal models must decide what and when to answer from the video chunks and synchronized audio observed so…
行业动态 HuggingFace Daily Papers · 9-14 阅读 16·访客 16
Why Is Video Still So Expensive? A Survey of Inference-Efficiency Mechanisms in Video and Audiovisual LLMs
Video understanding has rapidly evolved toward video large language models (VideoLLMs): systems that couple video repres…
大模型 HuggingFace Daily Papers · 9-9 阅读 26·访客 24
操作系统内功 · 第 24 篇｜VFS 与一切皆文件：统一抽象层的代价与红利
socket、管道、设备、普通文件能用同一套 read/write 接口操作，靠的是 VFS 虚拟文件系统层。本文拆解 VFS 的四个核心对象（superblock/inode/dentry/file）、dentry 缓存与 path lookup 的成本、页缓存与 inode 的绑定关系，以及 procfs/sysfs/devtmpfs 三个「伪装成文件」的内核接口——读完能看懂 /proc 里那些指标的真正来源。
后端技术 精选 · 原创 · 昨天 阅读 7·访客 7
操作系统内功 · 第 14 篇｜一次网络收包的内核之旅：从网卡 DMA 到 epoll 返回
P99 飙升、CPU 总量不高、却有一个核的软中断逼近 100%——问题几乎总出在收包路径。本文沿「网卡 DMA → 硬中断 → NAPI 轮询 → 软中断预算 → GRO → 协议栈 → socket 队列 → epoll 唤醒」的完整数据通路走一遍，讲清每一站的成本、丢包计数器与调优参数，最后给出可照抄的排查清单与分层定位表。
后端技术 精选 · 原创 · 2天前 阅读 22·访客 22
操作系统内功 · 第 5 篇｜IO 多路复用：从 select 1024 上限到 epoll 事件循环
1999 年提出的 C10K 问题催生了 nginx 与 epoll 时代。本篇拆解 select 的三宗罪、epoll 红黑树加就绪链表的两件套、LT 与 ET 两种敲门语义，讲清惊群问题的三代解法，并解释 Redis 为什么单线程也能扛十万连接、io_uring 又补上了哪块短板。
后端技术 精选 · 原创 · 10-26 阅读 88·访客 87
刚果埃博拉疫情死亡人数超过 3500 人]
刚果民主共和国的埃博拉疫情死亡人数超过 3500 人，确诊病例超过 7400 例，逾 1700 人康复。WHO 称，疫情最严重的 Ituri 省的病毒传播速度在下降，上周报告了约 300 例新增病例和 160 例死亡病例，占全国的一半；So…
行业动态 Solidot · 9-17 阅读 32·访客 32
操作系统内功 · 第 19 篇｜NUMA 与巨页：跨节点延迟税与 TLB miss 解药
服务器不是一台均匀的内存池：NUMA 让跨 socket 内存访问慢 40% 以上，巨页则用 2MB/1GB 页面把 TLB 压力降一个数量级。本文讲清 NUMA 拓扑、本地/远端内存与分配策略（default/bind/preferred/interleave），巨页的两种形态（hugetlbfs 与 THP）、收益与陷阱，并给出 Redis、数据库、JVM 的落地参数。
后端技术 精选 · 原创 · 昨天 阅读 9·访客 9
AI 编程工具的经验门槛：慢 19%、缺陷 +41% 与被遗忘的旧代码
「AI 编程是资深工程师专属」的知乎高赞论断，恰好可以拿一年来的硬数据逐条检验：METR 随机对照实验里资深开发者被 AI 拖慢 19% 且自认为快了 20%，Uplevel 追踪 800 名开发者发现缺陷率上升 41%，GitClear 遥测显示重构行为塌缩到 3.8%、遗留维护骤降 74%。本文梳理 2025–2026 年九项重量级研究，论证真正的门槛不是「会不会用工具」，而是验证 AI 输出的能力——它恰恰由经验构成。
智能体 精选 · 原创 · 昨天 阅读 6·访客 6
操作系统内功 · 第 27 篇｜sk_buff：一个包在内核网络栈里的旅行成本
sk_buff 是内核网络栈的通用货币：一个结构体串起从驱动到协议栈到 socket 的全部路径。本文拆解它的线性数据区与缓冲区头尾指针设计、clone 与 copy 的区别、各层协议头如何被依次剥掉，并算清一次收发的真实成本账（内存分配、拷贝次数、缓存行），解释 GRO/TSO 为什么靠「攒大包」来摊薄这份成本。
后端技术 精选 · 原创 · 昨天 阅读 8·访客 8
操作系统内功 · 第 20 篇｜OOM Killer：内存耗尽时内核杀谁、为什么杀错人、怎么防
内存不足时 Linux 不崩整机，而是派 OOM Killer 按启发式评分杀进程——但被杀的常常不是元凶。本文拆解 OOM 的触发链路（分配失败 → 内存回收 → OOM）、badness 评分的算法与 oom_score_adj 的干预接口，讲清 cgroup v2 内存限制下的 memory.oom.group 与 oom_kill_disable，最后给出容量水位、监控告警与优雅降级三道防线。
后端技术 精选 · 原创 · 昨天 阅读 7·访客 7
Hugging Face Releases Carbon-X, a 14B Open DNA Language Model that Brings DNA and Natural Language Together for the First Time
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行业动态 MarkTechPost · 10-26 阅读 39·访客 38
Grok releases the first seven minutes of its AI-generated ‘Odyssey’
Three months after Elon Musk declared that Grok would release a full-length, “historically accurate” movie version of “T…
行业动态 TechCrunch · 10-26 阅读 35·访客 34
Nanbeige Releases Nanbeige4.3-33B, a 33B Open Agentic Coding Model
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智能体 MarkTechPost · 10-26 阅读 73·访客 72
TechCrunch Mobility: Blue-green is the color of autonomy
Welcome back to **TechCrunch Mobility**, your hub for the future of transportation and now, more than ever, the role AI …
行业动态 TechCrunch · 10-26 阅读 30·访客 30
操作系统内功 · 第 2 篇｜虚拟内存：页表、TLB 与一次缺页中断的旅程
malloc 返回的指针为什么「立刻可用」却几乎不花时间？一台 64GB 机器为什么能 mmap 500GB 的文件？本篇拆解虚拟内存这台「期望兑现机器」：四级页表的层级与开销、缺页中断的完整旅程、TLB 与大页的经济学，以及 THP 与 MGLRU 这对自动化与性能的恩怨。
后端技术 精选 · 原创 · 10-26 阅读 93·访客 91
操作系统内功 · 第 3 篇｜内存分配内幕：伙伴系统、SLUB 与 glibc 碎片连环事故
RSS 缓慢上涨、堆剖析却查不到泄漏，最后被 OOM killer 一枪带走——这类事故的根源常常不是泄漏，而是分配器的碎片化。本篇从内核的伙伴系统讲到 SLUB，再对比 ptmalloc、tcmalloc、jemalloc 三国志，把 OOM killer 的判决逻辑和 overcommit 的三种姿势一次讲透。
后端技术 精选 · 原创 · 10-26 阅读 92·访客 91
操作系统内功 · 第 10 篇｜性能观测方法论：USE 方法、火焰图与 P99 尾延迟
「系统变慢了」是最难的工单——工具人人都有，方法论才分高下。系列收官篇讲透三套底层功法：给每个资源问三个问题的 USE 方法、让热点自己浮出来的火焰图、以及 P99 为什么比均值重要的尾延迟理论，外加压测圈最大的谎言「协调遗漏」。
后端技术 精选 · 原创 · 10-26 阅读 84·访客 83
Researchers from Stanford and UC Berkeley Introduce TokenGate: Token-Gated Attention Makes Long-Context Prefill Up to 11.3x Faster
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行业动态 MarkTechPost · 10-25 阅读 30·访客 30
OpenMobile-2 proves open-source smartphone agents can rival proprietary models
Oct 25, 2026 Nano Banana Pro prompted by THE DECODER Key Points The open-source OpenMobile-2 project trains AI smartphon…
智能体 The Decoder · 10-25 阅读 54·访客 54
Nvidia open-sources Flora to make robot video labeling 125x cheaper than GPT-6 Astra
Oct 25, 2026 Nvidia Labeling one hour of robot video for 72 cents instead of $88 is what Nvidia promises with Flora, its…
智能体 The Decoder · 10-25 阅读 53·访客 52
Anthropic co-founder Jack Clark moves his prediction for self-improving AI forward to 2027
Manuel Uth Oct 25, 2026 Nano Banana Pro prompted by THE DECODER A new benchmark called TasteVal measures how well AI sys…
研究前沿 The Decoder · 10-25 阅读 32·访客 32
Will AI expose the rickety infrastructure of the internet?
A startling announcement went out earlier this week: Due to recently discovered vulnerabilities in the open source progr…
开源项目 TechCrunch · 10-25 阅读 32·访客 32
Anthropic says one AI agent beats many subagents now that models can handle complexity alone
Oct 25, 2026 Nano Banana Pro prompted by THE DECODER Key Points Anthropic recommends that companies evaluate whether the…
智能体 The Decoder · 10-25 阅读 51·访客 51
The AI graveyard: a running list of projects and startups that didn’t make it
Relay, an AI-powered workflow automation tool built as an alternative to Zapier, shut down entirely in August. The produ…
智能体 TechCrunch · 10-25 阅读 56·访客 55
How to Run Underdog Saluki 27B: 2-Bit Qwen3.8-27B Tool-Calling Guide
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大模型 MarkTechPost · 10-25 阅读 28·访客 28
Cognition Open-Sources an Agent Plugin that Helps Secure Systems against Recent Cybersecurity Threats
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智能体 MarkTechPost · 10-25 阅读 49·访客 49
From Toast to Bessemer: Who founders will hear from at TechCrunch Founder Summit 2026
Building a startup means making decisions before you have all the answers. When should you scale? How do you know you re…
行业动态 TechCrunch · 10-24 阅读 27·访客 27
Forced to pick, Grok’s AI model chooses Republicans. OpenAI’s picks Democrats.
Most AI chatbots won’t outright tell you who to vote for, but some of the models behind them will. A new study found tha…
智能体 TechCrunch · 10-24 阅读 59·访客 58
Block's new AI model Dessa was trained entirely on human speech to catch emotions text-based models miss
Oct 24, 2026 Block, the company behind Square and Cash App, has unveiled an AI speech model called Dessa.** Block says D…
行业动态 The Decoder · 10-24 阅读 26·访客 26
Stateful Agentic Engineering Copilots with Letta: Core Memory, Shared State, Semantic Retrieval, Custom Tools, Streaming, and Portable Agent Workflows
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智能体 MarkTechPost · 10-24 阅读 55·访客 55
Fancy harnesses make coding agents more expensive but not better, study finds
Oct 24, 2026 Nano Banana Pro prompted by THE DECODER Makers tout score gains from new agent harnesses like Claude Code o…
智能体 The Decoder · 10-24 阅读 60·访客 59
Moonshot AI Releases Kimi K3.1 Pro: A 2.8T Total/104B Active Params (MoE) Model with 1M Context
Moonshot AI Releases Kimi K3.1 Pro: A 2.8T Total/104B Active Params (MoE) Model with 1M Context !(https://www.gstatic.co…
大模型 MarkTechPost · 10-24 阅读 45·访客 45
Chinese AI model Kimi K3.1 Pro is closing in on Anthropic's Claude Opus 5.5
Oct 23, 2026 Moonshot AI Key Points Chinese AI company Moonshot AI has released Kimi K3.1 Pro, which jumped to fourth pl…
大模型 The Decoder · 10-24 阅读 30·访客 30
OpenAI says it will no longer train its AI models on the live internet, citing “significant risks”
On Friday, OpenAI said that it will train its models using cached copies and simulated versions of the internet instead …
行业动态 TechCrunch · 10-24 阅读 19·访客 19
Kyutai CADRE: Video Autoencoders That Cut World Model Lag Below 230 ms
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行业动态 MarkTechPost · 10-24 阅读 28·访客 28
NVIDIA Releases Nemotron 3.5 Bolt E4B 4GB: An Open Small Language Model for Local Voice Agents, Game Characters and Robots
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智能体 MarkTechPost · 10-24 阅读 54·访客 52
OpenAI's isolated AI agents found ways to talk to each other through CPU cache
Oct 24, 2026 Nano Banana Pro prompted by THE DECODER Key Points After a security incident in September, OpenAI now train…
智能体 The Decoder · 10-24 阅读 50·访客 50