标签:#c
找到 33822 篇相关文章
Xbox follows Apple with price increases
The company says the increases are being driven by rising memory and console storage prices, with costs more than 2.5x higher than previous levels.
Notion killing Skiff-influenced email app since most users use AI agents instead
Notion is "going all in on using agents to run your inbox."
U.S. pedestrians are dead due to SUV/truck hood and pillar designs
How Cloudflare Solved a Congestion Bug in quiche
Cloudflare has recently shared how they uncovered an issue in their Rust implementation of CUBIC, a congestion controller algorithm, which prevented it from recovering from a scenario of heavy packet loss at the start of a connection. By Gianmarco Nalin
Southwest Airlines Embraces Cloud and AI Architecture. Are They Setting a New Standard for the Industry?
Table of Contents Overview Southwest and AWS From On-Prem to Cloud AI Comes Into Play Kiro Why This Matters? Closing Thoughts Overview Southwest Airlines is one of the largest carriers in the world. Other than having by far my absolute favorite airplane livery, it's a massive enterprise based in Dallas, Texas, with more than 72,000 employees, over 4,000 daily flights during peak travel periods, roughly 134 million customers annually, and service across 120+ airports in 12 countries. At this scale, what really matters is operational reliability and speed. Because in aviation, slow operations cause delays, delays cause unhappy customers, and unhappy customers aren't particularly great for the company's revenue. A few minutes of latency in one system can turn into hours of disruption in the real world. So... can cloud and AI solve it? Absolutely, if done right. Southwest and AWS Southwest has selected Amazon Web Services (AWS) as its primary cloud partner to help modernize its technology stack and transform how the airline runs, develops systems, and serves its customers. Through this collaboration, Southwest plans to move away from a predominantly on-premises infrastructure toward a cloud-based, AI and agent-enabled architecture on AWS by 2028 . 2028 is not far away from now (Jun 25, 2026). This is very ambitious considering the amount of work that needs to be done. From On-Prem to Cloud Moving an enterprise of this size from on-prem infrastructure to the cloud is way more complex than it sounds. It doesn't sound easy either. It's one of the hardest things you can ever do as a software engineer, DevOps engineer, architect, engineering manager, or anyone else involved in it. It involves a lot of steps, including but definitely not limited to: Assessing existing systems, dependencies, and infrastructure to understand what needs to move and how Defining a migration strategy (lift-and-shift, replatforming, or full refactoring to cloud-native architecture) Designing and bu
How I built a free tool that shows where Claude Code burns tokens
The problem Just saying "hi" to Claude Code costs ~31,000 tokens . I was paying $500+/month in API costs and had no idea where the tokens were going. So I built tokenwise — a free CLI that shows exactly where your AI coding agent wastes tokens. What it does tokenwise audit — Scan your instruction files It scans your CLAUDE.md, AGENTS.md, and rules files, then shows: How many tokens each file costs per message Boilerplate the AI already knows ("Always write clean code") ALL-CAPS emphasis that doesn't help (NEVER, ALWAYS, MUST) Duplicate sections Unscoped rules that load when they shouldn't tokenwise scan — Analyze your sessions It reads your latest session logs and shows: Token breakdown by component (system prompt, history, tool output) Cache hit rate Top 3 "token hogs" with actionable tips Monthly cost projection The key insight Most people try to compress context (which makes the AI dumber). tokenwise measures first, then applies safe fixes. You can't optimize what you can't measure. Quick start npx @davizin713/tokenwise audit npx @davizin713/tokenwise scan Zero API calls. Zero LLM inference. 100% local. Free forever. Works with 11 agents Claude Code, OpenCode, Cursor, Aider, Cline, Codex CLI, Goose, Continue.dev, Windsurf, Augment, and Kilocode. Links GitHub: github.com/davi713albano-coder/tokenwise npm: npmjs.com/package/@davizin713/tokenwise Built with TypeScript / Node.js js-tiktoken for token counting sql.js for reading OpenCode sessions MIT licensed If you use Claude Code or any AI coding agent, try it and let me know what you think! ⭐
Long Wave radio era set to end with switch-off
https://www.bbc.com/news/articles/c74yn7v7k4qo
Sunrise
A real planner for Google Tasks Discussion | Link
How to Stream & Flatten 1GB+ JSON to CSV in the Browser Without Memory Leaks
As developers, data engineers, or analysts, we’ve all been there: you download a massive database export, a logging stack dump, or a transaction archive, only to find it's a multi-gigabyte JSON file. You try to import it into a spreadsheet or run it through a standard online converter, and boom—your browser tab freezes, crashes, or shows the dreaded "Out of Memory" screen. Even worse, if you try to use standard cloud-based online tools, you might have to wait for a 500MB upload to complete, only to hit a rigid file-size cap or, worse, compromise sensitive data privacy by uploading corporate logs or database records to a third-party server. In this guide, we will explore: Why large JSON files crash standard parsers (the V8 heap limit problem). How streaming architectures solve this by reading data chunk-by-chunk. NDJSON (JSON Lines) vs. JSON Arrays and how to stream them. A browser-native, 100% offline tool to convert large JSON to CSV instantly: Parsify's Large JSON Stream Converter . How to implement your own basic browser-based JSON streaming parser in JavaScript. 1. The Anatomy of a Memory Crash (Why JSON.parse Fails) If you are using JavaScript or Node.js, the simplest way to read and parse a JSON file is to load the file into memory and run JSON.parse(). const fs = require ( ' fs ' ); // Naive approach: Will crash on a 1GB+ file fs . readFile ( ' database-dump.json ' , ' utf8 ' , ( err , data ) => { if ( err ) throw err ; // POINT OF FAILURE: V8 Heap Out of Memory const records = JSON . parse ( data ); records . forEach ( record => { // Process record... }); }); This works fine for small config files. But once your JSON file reaches 100MB, 500MB, or 1GB+, this approach is guaranteed to trigger a fatal crash: FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory Why does this happen? The String Duplication Overhead: When you load a 1GB file into memory, you first allocate ~1GB of RAM for the raw text string. The
As everything gets more expensive, it's time to make do and mend
The skyrocketing cost of computer components needs to foster a new mindset.
I Let My AI Agent Build a Bedrock RAG Knowledge Base, Here Are the 2 Mistakes the AWS Agent Toolkit Caught
Provisioning a Bedrock RAG knowledge base with S3 Vectors, without the hallucinated API calls. If you've asked an AI coding agent to set up AWS, you've seen it confidently invent a parameter, reach for a deprecated service, or burn ten minutes retrying against a service it never saw in training. The failure mode that bites hardest is the silent one: the agent thinks it succeeded, and you find out an hour later. I hit two of these while standing up the retrieval layer for a LangGraph support bot, an Amazon Bedrock Knowledge Base backed by Amazon S3 Vectors. I'd love to say I caught both with deep AWS expertise. I caught them because the Agent Toolkit for AWS read the docs I hadn't. Both would have shipped, and neither did. The 30-second setup The goal: take a folder of markdown product docs and make them queryable by meaning, so an agent can answer "is this safe for color-treated hair?" from the real docs instead of guessing. Think of it as giving the agent a library it can search instead of making things up. That's the retrieval half of RAG, the foundation a LangGraph agent will later call as a tool. Four moving parts, wrapped in one managed service: Source bucket : an S3 bucket holding the docs. Embeddings : Amazon Titan Text Embeddings V2 (1024-dim vectors). Vector store : Amazon S3 Vectors. I chose it over OpenSearch Serverless because it has no always-on compute, the difference between cents and a monthly surprise for a demo that sits idle. Knowledge Base : Amazon Bedrock Knowledge Bases ties it together into one thing you can query with a retrieve call. To follow along, you need an AWS account, a non-root IAM identity with credentials configured locally, uv installed, and the toolkit installed in your agent. The fastest path across Kiro, Claude Code, Cursor, and Codex is the AWS CLI installer, aws configure agent-toolkit ; in Kiro you can instead add the AWS MCP Server to .kiro/settings/mcp.json (pin the mcp-proxy-for-aws version) and run npx skills add aws/age
Supreme Court Gives Pesticide Corporations Immunity from Cancer Lawsuits
Keeping Doctrine Entities Honest with DTOs and ObjectMapper
Originally posted on https://symfonycasts.com/blog/honest-entities Your Doctrine entities are lying to you! For years, the standard way to build Doctrine entities in Symfony has looked something like this (and it's still what MakerBundle generates today): #[ORM\Entity] class ConferenceTalk { #[ORM\Id] #[ORM\GeneratedValue] #[ORM\Column] private ?int $id = null ; #[Assert\NotBlank] #[ORM\Column(length: 255)] private ?string $title = null ; #[ORM\Column(type: Types::TEXT, nullable: true)] private ?string $abstract = null ; public function getId (): ?int { return $this -> id ; } public function getTitle (): ?string { return $this -> title ; } public function setTitle ( ?string $title ): static { $this -> title = $title ; return $this ; } public function getAbstract (): ?string { return $this -> abstract ; } public function setAbstract ( ?string $abstract ): static { $this -> abstract = $abstract ; return $this ; } } At first glance, this looks perfectly reasonable. The title field is required. We know that because it has a NotBlank constraint and the database column is not nullable. But look closer. private ?string $title = null ; public function setTitle ( ?string $title ): static public function getTitle (): ?string According to the PHP type system, the title is optional. In fact, the public API of this class explicitly allows us to set it to null . That means this is perfectly valid: $talk = new ConferenceTalk (); And so is this: $talk = new ConferenceTalk (); $talk -> setTitle ( null ); Both objects represent a conference talk that can never be successfully persisted. Eventually, Doctrine catches the problem: $talk = new ConferenceTalk (); $entityManager -> persist ( $talk ); $entityManager -> flush (); // boom! SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'title' cannot be null The database knows that a conference talk must have a title. Our PHP code does not. So why do we build entities this way? Historically, this pattern was optimized for simpli
It’s a bad time to want a new computer
It's not exactly surprising that RAMaggeddon is making new tech hardware really expensive. But if you've been in the market for things like a new computer or tablet, this week has been filled with sticker shock. Given how many companies announced price hikes related to component shortages, it seems unlikely things will get cheaper any […]
Dev Log on Steam Recommender[P]
Since the steam sale is live I wanted to post a Dev log on my personal project https://nextsteamgame.com/ sharing some outcomes from the web traffic and how I changed the project from the great feedback I got! I made a post about a month ago explaining how I made this opensource explainable search engine built around steam reviews to people find new video games, Not through Relevancy but through aspect based similarity. Check out the old post for a better explanation if you want! https://www.reddit.com/r/MachineLearning/comments/1tb8k3n/steam_recommender_using_similarity_undergraduate/ I wanted to say thank you to all the people of r/datascience and r/MachineLearning that gave me feedback and tried out my tool! I improved the UI/UX of the website to make the vectors more clear and controllable, I Implemented a thumbs up and down feature on recommendations to see if users even like the tool. I also wanted to share the after effects of promoting this tool on reddit! from the 2,652 searches I got in the website 913 of them resulted in steam clicks! the games that were discovered were all in a uniform distribution and did not share much of a pattern showing me that the engine did its job in helping people find niche games across all genres! (More images attached to post to see data viz) I wanted to disclose that I made this tool to not make any profit of some kind, but it does use posthog so I can collect diagnostics now. submitted by /u/Expensive-Ad8916 [link] [留言]
The Illusion of Microservices: Why the Modular Monolith is Once Again the Gold Standard in Architecture
Throughout my career, transitioning between CTO roles and, more recently, focusing purely on distributed systems architecture and high-performance engineering, I've seen many architectural patterns rise and fall. But few have caused as much silent damage to company bottom lines as the premature adoption of microservices. Over the last decade, the industry bought into the idea that, in order to scale, you needed to split your system into dozens (or hundreds) of independent services. The practical result I find in most companies? The creation of the dreaded "Distributed Monolith." The Anatomy of Waste: Networks vs. Memory The hard truth we need to face with maturity is that microservices primarily solve problems of organizational scale (Conway's Law), not necessarily performance. If your engineering team isn't the size of Netflix or Uber, prematurely fragmenting your codebase is shooting yourself in the foot. Technically, what happens when we break down a monolith without the proper domain boundaries? We trade extremely fast and cheap local function calls (resolved in the processor's L1/L2 Cache) for slow and expensive network calls (TCP/IP). We start spending an absurd amount of computational time on constant JSON serialization and deserialization, and the AWS bill explodes with internal traffic costs (egress/ingress) between Availability Zones (AZs). You haven't scaled your application; you've merely added network latency and infrastructure complexity. The Return of the Modular Monolith True seniority in software engineering isn't about mastering the most complex architecture of the moment, but having the wisdom to know when not to use it. That's why the Modular Monolith has consolidated itself as the initial gold standard for new projects and restructurings. In a well-designed Modular Monolith (and languages with strong type systems and strict scope control, like Rust, shine absurdly well here), you maintain the logical separation of domains. Modules are independen
My trading bot said it was trading for four days... he was lying
Twenty-five days on Hyperliquid. Sixty-five closed trades. P&L: -$9.21. Turns out that was the smallest wrong thing about it. The landing page showed -$7.72 because it uses a different P&L formula and excludes two open positions. Either number is small. Both numbers were also wrong about what they were telling me. I spent yesterday auditing every trade. The audit produced three findings I did not expect. Each one was a different kind of wrong. This is the first post in a series about ziom trader , my small AI-assisted crypto trading bot. "Ziom" is Polish for buddy, mate, or dude depending on who's talking. The name is unserious on purpose. The system is not. This is not a "watch me print money" series. The number is negative. Good. The point of the series is to track what happens when an LLM-assisted trading system moves from backtests and dashboards into live execution: where the bot is wrong, where the dashboard is wrong, where I am wrong, and which layer gets to prove it. Frame The natural first read of -$9.21 is "the strategy is losing money." That read assumes the displayed P&L attributes to the strategy. It does not. The number that shows up at the surface is the sum of at least three different layers: the strategy itself, the execution wrapper around it, and the monitoring layer that observes both. Each layer can author its own kind of failure. The displayed number compresses all three into a single dollar figure and loses the attribution on the way up. The framing that landed for me, from Daniel Nevoigt, is that methodology overview without forward-correlation disclosure is a log with good intentions. Same applies to P&L: total P&L without layer-attribution disclosure is a log with good intentions. You see the number. You do not see where it came from. Here is what I found when I forced the attribution. Layer 1: Shadow does not equal live Before deploying any lane, the system runs against backtested data. The shadow says "this strategy returns X over Y trade
You won’t have long to get these iPad deals before Apple’s price hike
Apple just raised prices across its iPad and MacBook lineup. The good news is that many retailers are still selling their inventory at the old prices or far less, which means you can still score some of the best iPad deals we may see in awhile — if ever again. So if you’ve been thinking […]