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How Ruby executes JIT code

news.ycombinator.com Stan Lo 2025-09-28 15:01:53

Ever since YJIT’s introduction, I’ve felt simultaneously close to and distant from Ruby’s JIT compiler. I know how to enable it in my Ruby programs. I know it makes my Ruby programs run faster by compiling some of them into machine code. But my understanding around YJIT, or JIT compilers in Ruby in general, seems to end here. A few months ago, my colleague Max Bernstein wrote ZJIT has been merged into Ruby to explain how ZJIT compiles Ruby’s bytecode to HIR, LIR, and then to native code. It she

Topics: bytecode code compiled jit ruby
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‘Someone must know this guy’: four-year wedding crasher mystery solved

news.ycombinator.com Unknown 2025-10-02 08:52:33

A baffled bride has solved the mystery of the awkward-looking stranger who crashed her wedding four years ago. Michelle Wylie and her husband, John, registered the presence of their unidentifiable guest only as they looked through photographs of their wedding in the days after the happy occasion. Who was the tall man in a dark suit, distinguished by the look of quiet mortification on his face? But their family and friends could offer no explanation, nor could hotel staff at the Carlton hotel i

Topics: hillhouse michelle newsletter wedding wylie
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Heart attacks may be triggered by bacteria

news.ycombinator.com Unknown 2025-10-02 15:55:42

According to the recently published research, an infection may trigger myocardial infarction. Using a range of advanced methodologies, the research found that, in coronary artery disease, atherosclerotic plaques containing cholesterol may harbour a gelatinous, asymptomatic biofilm formed by bacteria over years or even decades. Dormant bacteria within the biofilm remain shielded from both the patient’s immune system and antibiotics because they cannot penetrate the biofilm matrix. A viral infect

Topics: bacteria biofilm infarction myocardial research
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‘The Strangers: Chapter 2’ Opening Is a Game of Hide and Seek

gizmodo.com Justin Carter 2025-10-02 12:50:15

You may not know it, but we’re a few weeks out from The Strangers: Chapter 2. To help drum up interest for the film, Lionsgate’s put out a clip from the first few minutes of the film, which picks up where 2024’s Chapter 1 concluded. Last we left off, Maya (Madelaine Petsch) survived the attack from the titular Strangers that left her boyfriend Ryan dead, and she ended the film recuperating in the hospital. But before she can worry about her health bill, she realizes that she’s not as free of th

Topics: chapter film maya petsch strangers
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Exclusive: Google wants to make Android phones safer by switching to ‘risk-based’ security updates

androidauthority.com Unknown 2025-10-02 11:00:06

Mishaal Rahman / Android Authority For the past decade, Google has consistently published an Android Security Bulletin every month, even if the company wasn’t ready to roll out a security update to its own Pixel devices. These bulletins detail the vulnerabilities that have been fixed in that month’s security release, with issues ranging from low to critical in severity. Given how large and complex the Android operating system and its underlying components are, it’s not unusual to see a dozen or

Topics: android google related security vulnerabilities
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Does All Semiconductor Manufacturing Depend on Spruce Pine Quartz? (2024)

news.ycombinator.com Brian Potter 2025-09-28 14:12:46

Here’s an idea you see spreading across the internet every so often: that all semiconductor and solar PV manufacturing depends on extremely pure quartz from the town of Spruce Pine, North Carolina. This quartz is used to make the crucibles which hold the molten silicon as it gets turned into silicon ingots, which are then cut into wafers and made into chips. The quartz needs to be very pure to prevent impurities from seeping into the silicon, and Spruce Pine is where this very pure quartz comes

Topics: pine purity quartz silicon spruce
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Trump Clears the Way for a Dystopian Air Taxi Future

gizmodo.com Lucas Ropek 2025-10-02 10:30:45

Donald Trump, who was backed by a bunch of tech billionaires during this past presidential election, is busy transforming America into a corporate dystopia straight out of the 1980s science fiction films that those billionaires have long admired for all the wrong reasons. For one thing, Trump has fully embraced AI—helping to cut what little regulation existed under the Biden administration, in an effort to further liberate the already blossoming and disruptive new industry. He also recently pave

Topics: new pilot program trump vehicles
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How Often Should You Replace Your Mattress and Bedding?

wired.com Julia Forbes 2025-10-02 10:39:00

As foreboding as it sounds, nothing lasts forever—not even your mattress, sheets, and pillows. It’s essential to know how often to replace your mattress and bedding, not just for hygiene reasons, but for ensuring you’re getting optimal support and comfort to aid in sleep. I have seen some severe cases of people using wildly outdated or damaged mattresses (think 20 years or more, or covered in duct tape), and pillows so shredded into tatters that it makes you wonder how they even resembled pillow

Topics: like mattress pillow sheets support
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Java 25's new CPU-Time Profiler (1)

news.ycombinator.com Johannes Bechberger 2025-10-02 12:11:27

More than three years in the making, with a concerted effort starting last year, my CPU-time profiler landed in Java with OpenJDK 25. It’s an experimental new profiler/method sampler that helps you find performance issues in your code, having distinct advantages over the current sampler. This is what this week’s and next week’s blog posts are all about. This week, I will cover why we need a new profiler and what information it provides; next week, I’ll cover the technical internals that go beyon

Topics: cpu java jfr profiler time
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Resizing images in Rust, now with EXIF orientation support

news.ycombinator.com Unknown 2025-09-28 14:31:22

Resizing images in Rust, now with EXIF orientation support Resizing an image is one of those programming tasks that seems simple, but has some rough edges. One common mistake is forgetting to handle the EXIF orientation, which can make resized images look very different from the original. Last year I wrote a create_thumbnail tool to resize images, and today I released a small update. Now it’s aware of EXIF orientation, and it no longer mangles these images. This is possible thanks to a new ver

Topics: exif image images orientation thumbnail
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AI Coding

news.ycombinator.com The Singularity Is Nearer 2025-10-02 13:28:30

In my old age I’ve mostly given up trying to convince anyone of anything. Most people do not care to find the truth, they care about what pumps their bags. Some people go as far as to believe that perception is reality and that truth is a construction. I hope there’s a special place in hell for those people. It’s why the world wasted $10B+ on self driving car companies that obviously made no sense. There’s a much bigger market for truths that pump bags vs truths that don’t. So here’s your new

Topics: ai code compiler language programming
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This Wearable Isn't Telepathic, but It Knows What You Want to Say

cnet.com See Full Bio 2025-10-02 14:00:05

Telepathy is, until proven otherwise, still science fiction. But a new wearable announced this week aims to bring the world closer to silent communication, though it's more about using brain signals than the X-Men superpower. Alterego, developed by the MIT Media Lab, is a peripheral neural interface that allows us to converse with machines, artificial intelligence assistants and humans, without using our voice or externally observable movements. We first saw the Alterego as a prototype in 2018

Topics: alterego device signals silent wearable
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Kefir: Solo-developed full C17/C23 compiler with extensive validation

news.ycombinator.com Unknown 2025-09-29 04:34:56

To whom it may concern, Today I release Kefir — an independent C17/C23 compiler. Solo-built. Extensively validated, for x86_64 & System-V ABI. With SSA-based optimization pipeline, DWARF-5 support and position-independent code generation. What? Implements the C17/C23 standard. Plus certain GNU C extensions. For Linux (glibc & musl), FreeBSD, OpenBSD, NetBSD. Extensive and transparent validation suite. Compiles and runs well-known open source projects — GNU core- and binutils, Curl, Git, Ngi

Topics: code compiler gnu independent optimization
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Automate compile_flags for C/C++ projects on the Zig build system

news.ycombinator.com Simon Hartcher 2025-09-29 18:28:49

When using Zig’s build system for C/C++ projects, editors struggle to find include paths and provide proper code intelligence. compile_flagz solves this by automatically generating compile_flags.txt from your build.zig configuration. The Problem Recently I’ve been working on ROLLER, a decompilation project for the 1995 game, Fatal Racing (or Whiplash in NA). The game (known internally as Roller), is an early 3D game written in C with a bespoke engine. It also happens to be one of my favourite

Topics: build compile compile_flagz include zig
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California lawmakers pass SB 79, housing bill that brings dense housing

news.ycombinator.com Staff Writer 2025-10-02 15:32:33

This is read by an automated voice. Please report any issues or inconsistencies here . California lawmakers just paved the way for a whole lot more housing in the Golden State. In the waning hours of the 2025 legislative session, the state Senate voted 21 to 8 to approve Senate Bill 79 , a landmark housing bill that overrides local zoning laws to expand high-density housing near transit hubs. The controversial bill received a final concurrence vote from the Senate on Friday, a day after passin

Topics: buildings california housing state transit
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Horror Icon Lin Shaye Is Returning to ‘Insidious’

gizmodo.com Sabina Graves 2025-10-02 18:50:56

Insidious franchise star Lin Shaye’s dearly departed medium character will make another return to star in Blumhouse’s sixth film in the series. The horror legend’s tenure as psychic Elise Rainier has been a beloved part of the Insidious movies and filmmaker Jacob Chase has officially enlisted her return, as reported by Deadline. The actress is joined by Amelia Eve (star of Netflix’s The Haunting of Bly Manor) in the upcoming installment, written by Chase and David Leslie Johnson. It goes into p

Topics: family film insidious series star
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Sharing Your YouTube Premium Plan? Your Service Could Be Paused

cnet.com See Full Bio 2025-10-02 16:30:02

That popular workaround for sharing a YouTube Premium family plan with friends and relatives in different homes is now squarely in Google's crosshairs. A new wave of enforcement has begun, with subscribers reporting they've received emails warning that their account access will be suspended. The ultimatum is clear: confirm all members live at the same address within 15 days, or lose your premium perks. And now that's something you should watch out for, whether you plan to stream videos or listen

Topics: family plan premium sharing youtube
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It’s Getting Ugly: Sam Altman Seeks Texts From Shivon Zilis, Elon Musk’s Employee/Mother of His Child

gizmodo.com Lucas Ropek 2025-10-02 19:00:59

Last year, Elon Musk sued his rival Sam Altman’s company, tech superstar OpenAI. In his lawsuit, Musk claimed that the company had violated federal racketeering laws because, having once promised to stay a nonprofit research lab, had since converted itself into a for-profit company. Musk, who initially poured tens of millions of dollars into the startup, claims he was deceived. OpenAI and Altman have since countered that Musk also wanted OpenAI to become a for-profit venture. This week, the lega

Topics: altman legal musk openai zilis
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Modder injects AI dialogue into 2002’s Animal Crossing using memory hack

arstechnica.com Unknown 2025-10-03 02:36:48

When software engineer Joshua Fonseca recently connected the GameCube simulation classic Animal Crossing to a modern AI language model like the kind that powers ChatGPT, he decided to shake things up. By programming the AI to roleplay as villagers growing aware of their debt situation, and giving them a shared memory to track conversations, Fonseca orchestrated a scenario where the residents began to organize against their raccoon landlord. In Animal Crossing, Tom Nook runs the town shop and pr

Topics: ai crossing fonseca game villagers
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Via shrugs off tepid open to end first day of trading slightly above IPO price

techcrunch.com Rebecca Bellan 2025-10-03 02:16:00

Investors took a cautious approach to transit software startup Via’s IPO on Friday, with shares opening below the company’s IPO price before recovering at end the day slightly higher. The company, which initially filed confidentially for IPO in July, priced its IPO at $46 per share, raising $492.9 million. Those shares slipped to $44 when the stock began trading Friday afternoon, and then inched back into the green to finish at just over $49. The modest gain values Via at roughly $3.9 billion a

Topics: company growth ipo million said
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Gemini, the Winklevoss' crypto exchange, pops more than 14% in Nasdaq debut

cnbc.com Tanaya Macheel 2025-10-03 06:19:17

Gemini Co-founders Tyler Winklevoss and Cameron Winklevoss attend the company's IPO at the Nasdaq MarketSite in New York City, U.S., Sept. 12, 2025. Shares of Gemini Space Station rallied 14% on Friday after the exchange operator raised $425 million in an initial public offering. The stock opened at $37.01 on the Nasdaq, about 32% above where its IPO was priced at $28. At one point, shares traded as high as $45.89. The stock closed higher by 14.3%, at $32. The New York-based company priced it

Topics: company exchange gemini ipo million
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Gemini, the Winklevoss' crypto exchange, pops more than 17% in Nasdaq debut

cnbc.com Tanaya Macheel 2025-10-03 10:36:30

Gemini Co-founders Tyler Winklevoss and Cameron Winklevoss attend the company's IPO at the Nasdaq MarketSite in New York City, U.S., Sept. 12, 2025. Shares of Gemini Space Station rallied 14% on Friday after the exchange operator raised $425 million in an initial public offering. The stock opened at $37.01 on the Nasdaq, about 32% above where its IPO was priced at $28. At one point, shares traded as high as $45.89. The stock closed higher by 14.3%, at $32. The New York-based company priced it

Topics: company exchange gemini ipo million
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9to5Mac Daily: September 12, 2025 – iPhone 17 pre-orders, more

9to5mac.com Seth Kurkowski 2025-10-03 10:22:34

Listen to a recap of the top stories of the day from 9to5Mac. 9to5Mac Daily is available on iTunes and Apple’s Podcasts app, Stitcher, TuneIn, Google Play, or through our dedicated RSS feed for Overcast and other podcast players. Sponsored by iMazing: iMazing lets you back up, transfer, and manage your iPhone and iPad data like never before — including messages, photos, music, WhatsApp, voicemails, battery health, and more. No cloud required. Use code 9to5mac-20off to get 20% off, exclusively f

Topics: 9to5mac apple daily imazing podcast
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