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Thundering herd problem: Preventing the stampede

Couple of years back I wrote a post describing the thundering herd problem. Now that I look back, I had very cursory knowledge about the problem. I knew what it was & how can it impact an application. I knew a possible solution that can be used to solve the problem. But these were individual pieces of information. There was nothing connecting them to give me an end to end view & that was primarily because I had neither seen the problem nor the solution in action. I knew the fundamental blocks bu

Linux Compose Key Sequences (2007)

Linux Compose Key Sequences Copied from archive of hermit.org Last updated: 8 September 2007 This table shows the compose key sequences which can be used to enter accented and other non-standard characters in Linux. To use these, you will first need to set up a compose key. Details may vary depending on your Linux setup, but it should be something like this: Open the Control Centre / desktop configuration tool. Select "Regional / Keyboard Layout". Select "Xkb Options". Scroll down to "Comp

Agents turn simple keyword search into compelling search experiences

A traditional RAG system often looks like the search we’ve built for years. An LLM calls a search API. We have query understanding and reranking functionality under the hood. All optimized for user engagement. This thick-daddy search API does quite a bit, as shown below: With small modifications (chunking, a focus on vector retrieval) the RAG implementations look familiar. Agents, however, come with the ability to reason. And like human users, they might try a query, see the results, adjust t

Kevo app shutdown

After more than a decade of service, as of November 14, 2025 the Kevo app and web portal will no longer be available. ASSA ABLOY Americas Residential Inc. (“ASSA ABLOY”, “we” and “us”), which is the successor to the company that previously marketed Kwikset Kevo, Weiser Kevo and Baldwin Evolved smart door locks, will cease supporting your Kevo lock’s remote functionality. Locks Affected (All Generations): Kevo, Kevo Convert, Kevo Plus, Baldwin Evolved Brands Affected: Kwikset, Weiser, Baldwi

Topics: app kevo key lock unique

Your Meta Quest headset just got a useful upgrade for free - including a big one for 3D

Kerry Wan/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Meta has announced three new features for the Quest headset. Horizon TV is a new hub for all your streaming content. Also new is a way to make a digital copy of your room. At last week's Meta Connect 2025 event, we got our expected peek at the company's upcoming smart glasses (three new versions are on the way), details on upgrades to its existing glasses, and a few other surprises. While the spo

Topics: horizon meta new quest tv

Gemini arrives on Google TV

Gemini is officially available on Google TVs, now that the TCL QM9K series TVs are out in stores. At the moment, they're the only television models that feature Google's AI assistant, but Gemini will be available on more devices later this year. Google says it will make its way to the Google TV Streamer, Walmart's onn 4K Pro streaming device, certain Hisense TV models and more TCL TVs. The company also intends to add more Gemini capabilities for televisions in the future. Google introduced Gemi

How can I influence others without manipulating them?

We influence others every day, whether we intend to or not. Sometimes it is through the way we argue, sometimes through the way we listen, and sometimes simply through the story we tell about what matters. Influence is not the property of the few who hold authority. It is the currency of all relationships. The word persuasion often carries with it the scent of manipulation, as though one person is moving another toward something they do not really want. But there is another way to hold it. Infl

This new Gemini feature is the best and worst thing that’s happened for my learning

Megan Ellis / Android Authority I’m typically a generative AI skeptic, but this doesn’t mean I’m not open to new AI tools that could be useful. After all, I found ways to use NotebookLM in my daily life even though I’m not a student. I even use Gemini’s Live mode to practice my second language. So when Guided Learning rolled out to the Gemini app, I wanted to test out whether it could turn my eagerness to learn new things into actual knowledge. The results were mixed, however. Have you found A

Bringing restartable sequences out of the niche

Bringing restartable sequences out of the niche Please consider subscribing to LWN Subscriptions are the lifeblood of LWN.net. If you appreciate this content and would like to see more of it, your subscription will help to ensure that LWN continues to thrive. Please visit this page to join up and keep LWN on the net. The restartable sequences feature, which was added to the 4.18 kernel in 2018, exists to enable better performance in certain types of threaded applications. While there are users

Lenovo abruptly cancels some Legion Go 2 preorders due to overwhelming demand

From a disastrous AMA on Monday to disappointing Legion Go 2 preorder customers on Friday, the Lenovo team is having a hell of a week. To kick things off, the Lenovo Legion team hosted an AMA on Reddit revolving around its gaming handheld launch. The Legion Go 2 generated a ton of hype, being Lenovo's next-gen gaming handheld with more powerful specs and a higher price tag, but the team only answered 10 questions before abandoning the thread. On Wednesday, Lenovo apologized for not being prepare

Sorry, but You're Probably Using Your Electric Toothbrush Wrong. Here's How to Do It Right

Brushing your teeth twice a day might seem like a mindless activity, and during those two minutes, you might space out or watch videos on your phone. This is especially the case when using an electric toothbrush, as many assume that it does all the work for them. However, if you stop paying attention to what you're doing when brushing your teeth, it's easy to do it wrong and make mistakes. Whether you've just switched to an electric toothbrush or are teaching a child how to use one, we outline

Your Quest headset just got a big upgrade for free - see what it can do now

Kerry Wan/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Meta has announced three new features for the Quest headset. Horizon TV is a new hub for all your streaming content. Also new is a way to make a digital copy of your room. At this week's Meta Connect 2025 event, we got our expected peek at the company's upcoming smart glasses (three new versions are on the way), details on upgrades to its existing glasses, and a few other surprises. While the spo

Topics: horizon meta new quest tv

Your Quest headset just got these new free features - see what you can do now

Kerry Wan/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Meta has announced three new features for the Quest headset. Horizon TV is a new hub for all your streaming content. Also new is a way to make a digital copy of your room. At today's Meta Connect 2025 event, we got our expected peek at the company's upcoming smart glasses (three new versions are on the way), details on upgrades to its existing glasses, and a few other surprises. While the spotlig

Topics: horizon meta new quest tv

Tina Romero’s Zombie Movie, ‘Queens of the Dead,’ Has a Queer, Gory, and Gleeful First Trailer

You can’t have the last name “Romero” and release a zombie movie that flies under the radar—which is why it’s so delightful that Tina Romero, daughter of late zombie movie legend George A. Romero, is making her feature directorial debut with the glittery, flashy, gory, proudly queer, and over-the-top-looking Queens of the Dead. The first trailer is here, and it does not disappoint. There’s still a George A. Romero-adjacent zombie movie in the works, titled Twilight of the Dead—last we heard, Mi

European ant is the first known animal to clone members of another species

The same Iberian harvester ant (Messor ibericus) queen produced the hairy male Messor ibericus (on the left) and the hairless male Messor structor (on the right), despite them being members of distantly related species. Queen ants in southern Europe produce male clones of an entirely different species — tearing up the playbook of reproductive biology and suggesting we need to rethink our understanding of species barriers. The workers in Iberian harvester ant (Messor ibericus) colonies are all

Meta's Quest Headsets Can Scan Your Home Into VR. The Results Are Stunning

I stood in Gordon Ramsay's absolutely lovely kitchen and stared at the Smeg toaster on his polished counters. I admired the windows to the garden, the jukebox in the corner and the adjoining open living room. I tried to walk in the living room and hit a VR barrier. That's where the scan ended. Gordon's home was a Quest-made 3D scan, a still-life of his lovely LA abode. I almost felt like I could sit down in a chair and wait for him to walk into the room, brandish a soufflé... and yell at me. M

Topics: 3d like meta quest room

Meta will let you use a Quest VR headset to turn your real-world space into a virtual world

is a senior reporter covering technology, gaming, and more. He joined The Verge in 2019 after nearly two years at Techmeme. Meta is rolling out tech that lets you capture a real-world space with a Quest VR headset so you can create a digital, photorealistic VR replica. The company calls the tech “Hyperscape,” and as part of a gradual rollout beginning today, users will be able to use the beta Hyperscape Capture app with their Quest 3 or Quest 3S to make the virtual copies. Initially, you’ll onl

Meta launches Hyperscape, technology to turn real-world spaces into VR

Although today’s Meta Connect developer conference was largely about new smart glasses, the social networking company did announce a handful of metaverse updates during Wednesday’s keynote. Of these, one of the largest was the introduction of Hyperscape, first demoed at last year’s event, which allows developers and creators to build more photorealistic spaces in virtual reality. The company announced that Hyperscape Capture is now rolling out in Early Access, meaning Quest device owners will b

A postmortem of three recent issues

Between August and early September, three infrastructure bugs intermittently degraded Claude's response quality. We've now resolved these issues and want to explain what happened. In early August, a number of users began reporting degraded responses from Claude. These initial reports were difficult to distinguish from normal variation in user feedback. By late August, the increasing frequency and persistence of these reports prompted us to open an investigation that led us to uncover three sepa

Claude Code Degradation: A postmortem of three recent issues

Between August and early September, three infrastructure bugs intermittently degraded Claude's response quality. We've now resolved these issues and want to explain what happened. In early August, a number of users began reporting degraded responses from Claude. These initial reports were difficult to distinguish from normal variation in user feedback. By late August, the increasing frequency and persistence of these reports prompted us to open an investigation that led us to uncover three sepa

SQL performance improvements: finding the right queries to fix

A few weeks ago, we massively improved the performance of the dashboard & website by optimizing some of our SQL queries. In this post, we'll share how we identified the queries that needed work. In the next post, we'll explore how we fixed each of them. We'll cover the basics and gradually work our way up to the more advanced/complex ways of identifying slow queries. In this post, you'll see: Let's go! What these results look like # As a reminder, this is the resulting performance gain for

Things you can do with a Software Defined Radio (2024)

Fifty Things you can do with a Software Defined Radio 📻 Last week, I went on an adventure through the electromagnetic spectrum! It’s like an invisible world that always surrounds us, and allows us to do many amazing things: It’s how radio and TV are transmitted, it’s how we communicate using Wi-Fi or our phones. And there are many more things to discover there, from all over the world. In this post, I’ll show you fifty things you can find there – all you need is this simple USB dongle and an

Fifty Things you can do with a Software Defined Radio

Fifty Things you can do with a Software Defined Radio 📻 Last week, I went on an adventure through the electromagnetic spectrum! It’s like an invisible world that always surrounds us, and allows us to do many amazing things: It’s how radio and TV are transmitted, it’s how we communicate using Wi-Fi or our phones. And there are many more things to discover there, from all over the world. In this post, I’ll show you fifty things you can find there – all you need is this simple USB dongle and an

Why We Spiral

Say you’re a senior member of your team at work. You’re 12 minutes late to the weekly staff Zoom. Once you’ve “joined audio,” the first thing you hear is your old friend’s voice. “There you are! So glad you could fit us in.” You laugh and explain the disastrous traffic, difficult drop-off at your kids’ school, or whatever it was that messed up your morning. The moment passes and the conversation moves on. You turn to the job at hand, focused and ready to go. But what if you’re a junior staffer,

Titania Programming Language

Titania Programming Language Based on the Oberon-07 programming language designed by the late Niklaus Wirth. This is designed to be a language to teach compiler development with. Meaning behind the name: Titania is the wife of Oberon (Fairy King) in Shakespeare's A Midsummer Night's Dream https://en.wikipedia.org/wiki/Titania_(A_Midsummer_Night%27s_Dream) This is just a codename, and probably not final for this teaching language Grammar module = "module" ident ";" [import_list] decl_sequ

Adding OR logic forced us to confront why users preferred raw SQL

Where This Story Begins In 2022, we had three different query interfaces. Logs had a custom search syntax with no autocomplete. Traces only had predefined filters - no query builder at all. Metrics had a raw PromQL input box where you'd paste queries from somewhere else and hope they worked. Each system spoke a different language. An engineer debugging a production issue had to context-switch not just between data types, but between entirely different mental models of how to query data. When