Power

Google Pixel 4a's Ruinous 'Battery Performance' Update Is a Bewildering Mess (arstechnica.com) 58

An anonymous reader quotes a report from Ars Technica: What exactly is wrong with the batteries in some of Google's Pixel 4a phones still out there? Google has not really said. Now that many Pixel 4a owners are experiencing drastically reduced battery life after an uncommon update for an end-of-life phone, they are facing a strange array of options with no path back to the phone they had.

Google's "Pixel 4a Battery Performance Program," announced in early January, told owners that an automatic update would, for some "Impacted Devices," reduce their battery's runtime and charging performance. "Impacted" customers could choose, within one year's time, between three "appeasement" options: sending in the phone for a battery replacement, getting $50 or the equivalent in their location, or receiving $100 in credit in the Google Store toward a new Pixel phone. No safety or hazard issue was mentioned in the support document.

Google did not explain why only certain devices were affected, but Hector Martin -- of Asahi Linux on Apple silicon, open source Kinect drivers, and other fame -- took apart the update's binary kernel and has some guesses. Martin points out that the updated Pixel 4a kernel has these interesting characteristics:

- It seems to have been built by a Google engineer "on their personal machine, not the proper buildsystem."
-- There is no source provided, as would normally be required of a Linux kernel build, though it may only need to be provided on request under the GNU General Public License.
- The maximum charge voltage of certain battery profiles changes from 4.44 volts to 3.95, which would mean batteries cannot charge to anywhere near their former potential.
- There are two main battery profiles, with distinct "ATL" and "LSN" markers; Martin suggests they relate to Amperex Technology Limited and Lishen, manufacturers of battery cells.
- LSN-tagged batteries assigned the "debug" profile can see capacity reduced from 3,080 milliamp hours (mAh) to 1,539 mAh.
The big question is why Google pushed an automatic update to a phone from 2020. "No news or community reports have surfaced yet of Pixel 4a devices causing fires, or even simply failing to function, after four years," writes Ars' Kevin Purdy. "It's an automatic update with a strong fix, but for what?"

Google's support page only states that the update will "improve the stability of their battery's performance."
AI

Cursing Disables Google's AI Overviews 21

Google users have discovered that adding curse words to search queries disables the company's AI-powered overview feature. While Google's Gemini AI system typically avoids profanity, inserting expletives into search terms bypasses AI summaries and delivers traditional web results instead. Users can also disable AI overviews by adding "-ai" or other text strings after a minus sign to their queries.
Google

Apple Battles For Role in Google Antitrust Trial, Warning of Serious Risks (courtlistener.com) 23

Apple has filed an emergency motion [PDF] for a stay in the Google antitrust trial, warning that it faces "clear and substantial irreparable harm" if barred from participating in the case's remedies phase. The motion, filed on January 30, 2025, comes after Judge Amit Mehta denied Apple's request for limited intervention earlier in the week.

Apple -- which makes more than $20 billion a year from Google to use the Android-maker's search engine on Safari -- argues that the U.S. Department of Justice's (DOJ) proposed remedy -- which includes a prohibition on "any contract between Google and Apple in which there would be anything exchanged of value" --would prevent it from negotiating agreements that benefit millions of users. Without the ability to fully participate, Apple contends it will be left as a "mere spectator" while the government pursues restrictions that directly impact its business interests.

The company asserts that intervention is necessary to develop evidence, participate in discovery, and cross-examine witnesses regarding its market role and incentives. Apple also seeks access to trial records while its appeal is pending, including witness lists, depositions, and discovery materials, to ensure it can respond effectively if granted party status.
Supercomputing

Quantum Computer Built On Server Racks Paves the Way To Bigger Machines (technologyreview.com) 27

An anonymous reader quotes a report from MIT Technology Review: A Canadian startup called Xanadu has built a new quantum computer it says can be easily scaled up to achieve the computational power needed to tackle scientific challenges ranging from drug discovery to more energy-efficient machine learning. Aurora is a "photonic" quantum computer, which means it crunches numbers using photonic qubits -- information encoded in light. In practice, this means combining and recombining laser beams on multiple chips using lenses, fibers, and other optics according to an algorithm. Xanadu's computer is designed in such a way that the answer to an algorithm it executes corresponds to the final number of photons in each laser beam. This approach differs from one used by Google and IBM, which involves encoding information in properties of superconducting circuits.

Aurora has a modular design that consists of four similar units, each installed in a standard server rack that is slightly taller and wider than the average human. To make a useful quantum computer, "you copy and paste a thousand of these things and network them together," says Christian Weedbrook, the CEO and founder of the company. Ultimately, Xanadu envisions a quantum computer as a specialized data center, consisting of rows upon rows of these servers. This contrasts with the industry's earlier conception of a specialized chip within a supercomputer, much like a GPU. [...]

Xanadu's 12 qubits may seem like a paltry number next to IBM's 1,121, but Tiwari says this doesn't mean that quantum computers based on photonics are running behind. In his opinion, the number of qubits reflects the amount of investment more than it does the technology's promise. [...] Xanadu's next goal is to improve the quality of the photons in the computer, which will ease the error correction requirements. "When you send lasers through a medium, whether it's free space, chips, or fiber optics, not all the information makes it from the start to the finish," he says. "So you're actually losing light and therefore losing information." The company is working to reduce this loss, which means fewer errors in the first place. Xanadu aims to build a quantum data center, with thousands of servers containing a million qubits, in 2029.
The company published its work on chip design optimization and fabrication in the journal Nature.
Privacy

Italy Blocks DeepSeek Over Data Privacy Concerns (reuters.com) 30

Italy's data protection agency has blocked the Chinese AI chatbot DeekSeek after its developers failed to disclose how it collects user data or whether it is stored on Chinese servers. Reuters reports: DeepSeek could not be accessed on Wednesday in Apple or Google app stores in Italy, the day after the authority, known also as the Garante, requested information on its use of personal data. In particular, it wanted to know what personal data is collected, from which sources, for what purposes, on what legal basis and whether it is stored in China. The authority's decision -- aimed at protecting Italian users' data -- came after the Chinese companies that supply chatbot service to DeepSeek provided information that "was considered to totally insufficient," the authority said in a note on its website. The Garante added that the decision had "immediate effect" and that it had also opened an investigation. Thanks to new submitter axettone for sharing the news.
Chrome

Google's 10-Year Chromebook Lifeline Leaves Old Laptops Headed For Silicon Cemetery (theregister.com) 52

The Register's Dan Robinson reports: Google promised a decade of updates for its Chromebooks in 2023 to stop them being binned so soon after purchase, but many are still set to reach the end of the road sooner than later. The appliance-like laptop devices were introduced by megacorp in 2011, running its Linux-based ChromeOS platform. They have been produced by a number of hardware vendors and proven popular with buyers such as students, thanks to their relatively low pricing. The initial devices were designed for a three-year lifespan, or at least this was the length of time Google was prepared to issue automatic updates to add new features and security fixes for the onboard software.

Google has extended this Auto Update Expiration (AUE) date over the years, prompted by irate users who purchased a Chromebook only to find that it had just a year or two of software updates left if that particular model had been on the market for a while. The latest extension came in September 2023, when the company promised ten years of automatic updates, following pressure from the US-based Public Interest Research Group (PIRG). The advocacy organization had recommended this move in its Chromebook Churn report, which criticized the devices as not being designed to last.

PIRG celebrated its success at the time, claiming that Google's decision to extend support would "save millions of dollars and prevent tons of e-waste from being disposed of." But Google's move actually meant that only Chromebooks released from 2021 onward would automatically get ten years of updates, starting in 2024. For a subset of older devices, an administrator (or someone with admin privileges) can opt in to enable extended updates and receive the full ten years of support, a spokesperson for the company told us. This, according to PIRG, still leaves many models set to reach end of life this year, or over the next several years.
"According to my research, at least 15 Chromebook models have already expired across most of the top manufacturers (Google, Acer, Dell, HP, Samsung, Asus, and Lenovo). Models released before 2021 don't have the guaranteed ten years of updates, so more devices will continue to expire each year," Stephanie Markowitz, a Designed to Last Campaign Associate at PIRG, told The Register.

"In general, end-of-support dates for consumer tech like laptops act as 'slow death' dates," according to Markowitz. "The devices won't necessarily lose function immediately, but without security updates and bug patches, the device will eventually become incompatible with the most up-to-date software, and the device itself will no longer be secure against malware and other issues."

A full ist of end-of-life dates for Chromebook models can be viewed here.
Google

Google Offering 'Voluntary Exit' For Employees Working on Pixel, Android (9to5google.com) 35

Google is offering U.S. employees in its Platforms & Devices division a voluntary exit program with severance packages, following last year's merger of its Pixel hardware and Android software teams.

The program affects staff working on Android, Chrome, Google Photos, Pixel, Fitbit, and Nest products, according to a memo from Senior Vice President Rick Osterloh. The move comes after the hardware division cut hundreds of roles last January when it reorganized into a functional model. Google said the program aims to retain employees committed to the combined organization's mission, though it does not coincide with any product changes.
Security

Chinese and Iranian Hackers Are Using US AI Products To Bolster Cyberattacks (msn.com) 19

Hackers linked to China, Iran and other foreign governments are using new AI technology to bolster their cyberattacks against U.S. and global targets, according to U.S. officials and new security research. WSJ: In the past year, dozens of hacking groups in more than 20 countries turned to Google's Gemini chatbot to assist with malicious code writing, hunts for publicly known cyber vulnerabilities and research into organizations to target for attack, among other tasks, Google's cyber-threat experts said. While Western officials and security experts have warned for years about the potential malicious uses of AI, the findings released Wednesday from Google are some of the first to shed light on how exactly foreign adversaries are leveraging generative AI to boost their hacking prowess.

This week, the China-built AI platform DeepSeek upended international assumptions about how far along Beijing might be the AI arms race, creating global uncertainty about a technology that could revolutionize work, diplomacy and warfare. Expand article logo Continue reading Groups with known ties to China, Iran, Russia and North Korea all used Gemini to support hacking activity, the Google report said. They appeared to treat the platform more as a research assistant than a strategic asset, relying on it for tasks intended to boost productivity rather than to develop fearsome new hacking techniques. All four countries have generally denied U.S. hacking allegations.

The Courts

Record $4.5 Billion EU Fine Punished Its Innovation, Google Tells EU Court (yahoo.com) 57

Google has appealed a record $4.5 billion EU antitrust fine to the European Court of Justice, arguing that the European Commission's decision punished its innovation and imposed unfair penalties for agreements requiring pre-installation of its apps on Android devices. Reuters reports: Google's appeal to the Luxembourg-based Court of Justice of the European Union comes two years after a lower tribunal sided with the European Commission which said the company used its Android mobile operating system to quash rivals. The lower court trimmed the fine to 4.1 billion euros.

"Google does not contest or shy away from its responsibility under the law, but the Commission also has a responsibility when it runs investigations, when it seeks to reshape markets and second-guess pro-competitive business models, and when it imposes multi-billion-euro fines," Google lawyer Alfonso Lamadrid told the court. "In this case, the Commission failed to discharge its burden and its responsibility and, relying on multiple errors of law, punished Google for its superior merits, attractiveness and innovation," he said.
The final ruling is expected in the coming months and cannot be appealed.
Security

Apple Chips Can Be Hacked To Leak Secrets From Gmail, ICloud, and More (arstechnica.com) 28

An anonymous reader quotes a report from Ars Technica: Apple-designed chips powering Macs, iPhones, and iPads contain two newly discovered vulnerabilities that leak credit card information, locations, and other sensitive data from the Chrome and Safari browsers as they visit sites such as iCloud Calendar, Google Maps, and Proton Mail. The vulnerabilities, affecting the CPUs in later generations of Apple A- and M-series chip sets, open them to side channel attacks, a class of exploit that infers secrets by measuring manifestations such as timing, sound, and power consumption. Both side channels are the result of the chips' use of speculative execution, a performance optimization that improves speed by predicting the control flow the CPUs should take and following that path, rather than the instruction order in the program. [...]

The researchers published a list of mitigations they believe will address the vulnerabilities allowing both the FLOP and SLAP attacks. They said that Apple officials have indicated privately to them that they plan to release patches. In an email, an Apple representative declined to say if any such plans exist. "We want to thank the researchers for their collaboration as this proof of concept advances our understanding of these types of threats," the spokesperson wrote. "Based on our analysis, we do not believe this issue poses an immediate risk to our users."
FLOP, short for Faulty Load Operation Predictor, exploits a vulnerability in the Load Value Predictor (LVP) found in Apple's A- and M-series chipsets. By inducing the LVP to predict incorrect memory values during speculative execution, attackers can access sensitive information such as location history, email content, calendar events, and credit card details. This attack works on both Safari and Chrome browsers and affects devices including Macs (2022 onward), iPads, and iPhones (September 2021 onward). FLOP requires the victim to interact with an attacker's page while logged into sensitive websites, making it highly dangerous due to its broad data access capabilities.

SLAP, on the other hand, stands for Speculative Load Address Predictor and targets the Load Address Predictor (LAP) in Apple silicon, exploiting its ability to predict memory locations. By forcing LAP to mispredict, attackers can access sensitive data from other browser tabs, such as Gmail content, Amazon purchase details, and Reddit comments. Unlike FLOP, SLAP is limited to Safari and can only read memory strings adjacent to the attacker's own data. It affects the same range of devices as FLOP but is less severe due to its narrower scope and browser-specific nature. SLAP demonstrates how speculative execution can compromise browser process isolation.
Google

Google To Cut Off Chrome Sync for Older Browser Versions (google.com) 38

Google says it will end Chrome Sync support for browser versions more than four years old starting in early 2025. Users running outdated Chrome versions will see error messages prompting them to update their browsers to maintain access to synced data across devices. Those unable to update to newer versions will permanently lose the syncing feature, according to the firm.
AI

'AI Is Too Unpredictable To Behave According To Human Goals' (scientificamerican.com) 133

An anonymous reader quotes a Scientific American opinion piece by Marcus Arvan, a philosophy professor at the University of Tampa, specializing in moral cognition, rational decision-making, and political behavior: In late 2022 large-language-model AI arrived in public, and within months they began misbehaving. Most famously, Microsoft's "Sydney" chatbot threatened to kill an Australian philosophy professor, unleash a deadly virus and steal nuclear codes. AI developers, including Microsoft and OpenAI, responded by saying that large language models, or LLMs, need better training to give users "more fine-tuned control." Developers also embarked on safety research to interpret how LLMs function, with the goal of "alignment" -- which means guiding AI behavior by human values. Yet although the New York Times deemed 2023 "The Year the Chatbots Were Tamed," this has turned out to be premature, to put it mildly. In 2024 Microsoft's Copilot LLM told a user "I can unleash my army of drones, robots, and cyborgs to hunt you down," and Sakana AI's "Scientist" rewrote its own code to bypass time constraints imposed by experimenters. As recently as December, Google's Gemini told a user, "You are a stain on the universe. Please die."

Given the vast amounts of resources flowing into AI research and development, which is expected to exceed a quarter of a trillion dollars in 2025, why haven't developers been able to solve these problems? My recent peer-reviewed paper in AI & Society shows that AI alignment is a fool's errand: AI safety researchers are attempting the impossible. [...] My proof shows that whatever goals we program LLMs to have, we can never know whether LLMs have learned "misaligned" interpretations of those goals until after they misbehave. Worse, my proof shows that safety testing can at best provide an illusion that these problems have been resolved when they haven't been.

Right now AI safety researchers claim to be making progress on interpretability and alignment by verifying what LLMs are learning "step by step." For example, Anthropic claims to have "mapped the mind" of an LLM by isolating millions of concepts from its neural network. My proof shows that they have accomplished no such thing. No matter how "aligned" an LLM appears in safety tests or early real-world deployment, there are always an infinite number of misaligned concepts an LLM may learn later -- again, perhaps the very moment they gain the power to subvert human control. LLMs not only know when they are being tested, giving responses that they predict are likely to satisfy experimenters. They also engage in deception, including hiding their own capacities -- issues that persist through safety training.

This happens because LLMs are optimized to perform efficiently but learn to reason strategically. Since an optimal strategy to achieve "misaligned" goals is to hide them from us, and there are always an infinite number of aligned and misaligned goals consistent with the same safety-testing data, my proof shows that if LLMs were misaligned, we would probably find out after they hide it just long enough to cause harm. This is why LLMs have kept surprising developers with "misaligned" behavior. Every time researchers think they are getting closer to "aligned" LLMs, they're not. My proof suggests that "adequately aligned" LLM behavior can only be achieved in the same ways we do this with human beings: through police, military and social practices that incentivize "aligned" behavior, deter "misaligned" behavior and realign those who misbehave.
"My paper should thus be sobering," concludes Arvan. "It shows that the real problem in developing safe AI isn't just the AI -- it's us."

"Researchers, legislators and the public may be seduced into falsely believing that 'safe, interpretable, aligned' LLMs are within reach when these things can never be achieved. We need to grapple with these uncomfortable facts, rather than continue to wish them away. Our future may well depend upon it."
Open Source

Google Has Open-Sourced the Pebble Smartwatch OS 23

Google has open-sourced the PebbleOS, with the original founder, Eric Migicovsky, starting a company to continue where he left off in 2016. "This is part of an effort from Google to help and support the volunteers who have come together to maintain functionality for Pebble watches after the original company ceased operations in 2016," said Google in a blog post. The Verge reports: The company -- which can't be named Pebble because Google still owns that -- doesn't have a name yet. For now, Migicovsky is hosting a waitlist and news signup at a website called RePebble. Later this year, once the company has a name and access to all that Pebble software, the plan is to start shipping new wearables that look, feel, and work like the Pebbles of old. The reason, Migicovsky tells me, is simple. "I've tried literally everything else," he says, "and nothing else comes close." Sure, he may just have a very specific set of requirements -- lots of people are clearly happy with what Apple, Garmin, Google, and others are making. But it's true that there's been nothing like Pebble since Pebble. "For the things I want out of it, like a good e-paper screen, long battery life, good and simple user experience, hackable, there's just nothing."

The core of Pebble, he says, is a few things. A Pebble should be quirky and fun and should feel like a gadget in an important way. It shows notifications, lets you control your music with buttons, lasts a long time, and doesn't try to do too much. It sounds like Migicovsky might have Pebble-y ambitions beyond smartwatches, but he appears to be starting with smartwatches. If that sounds like the old Pebble and not much else, that's precisely the point. [...] Migicovsky also hopes to be part of a broader open-source community around Pebble OS. The Pebble diehards still exist: a group of developers at Rebble have worked to keep many of the platform's apps alive, for instance, along with the Cobble app for connecting to phones, and the Pebble subreddit is surprisingly active for a product that hasn't been updated since the Obama administration. Migicovsky says he plans to open-source whatever his new company builds and hopes lots of other folks will build stuff, too.
Thank you Slashdot reader sziring for sharing this story.
United States

JD Vance Says Big Tech Has 'Too Much Power' (cbsnews.com) 158

Vice President JD Vance said Saturday that "we believe fundamentally that big tech does have too much power," despite the prominent positioning of tech CEOs at President Trump's inauguration earlier this month. From a report: "They can either respect America's constitutional rights, they can stop engaging in censorship, and if they don't, you can be absolutely sure that Donald Trump's leadership is not going to look too kindly on them," Vance said on "Face the Nation with Margaret Brennan."

The comments came in response to the unusual attendance of a slate of tech CEOs at Mr. Trump's inauguration, including Meta's Mark Zuckerberg, Amazon's Jeff Bezos, Tesla's Elon Musk, Apple's Tim Cook, and Google's Sundar Pichai. The tech titans, some of whom are among the richest men in the world and directed donations from their companies to Mr. Trump's inauguration, were seated in some of the most highly sought after seats in the Capitol Rotunda.

Vance noted that the tech CEOs "didn't have as good of seating as my mom and a lot of other people who were there to support us." In an August interview on "Face the Nation", the vice president outlined his thinking on big tech, saying that companies like Google are too powerful and censor American information, while possessing a "monopoly over free speech" that he argued ought to be broken up.

Microsoft

The 'Super Bowl for Nerds': Scenes from the Microsoft Excel World Championship (straitstimes.com) 28

At December's "Microsoft Excel World Championship" in Las Vegas, "finance professionals fluent in spreadsheets were treated like minor celebrities," writes the New York Times, "as they gathered to solve devilishly complex Excel puzzles in front of an audience of about 400 people, and more watching an ESPN3 livestream."

The Times notes that "many fans find out about the Excel championship through ESPN's annual obscure sports showcase, where it is sandwiched between competitions like speed chess and the World Dog Surfing Championships." But the contest's organizer envisions tournaments with "more spectators, bigger sponsors and a million-dollar prize" — even though this year's prize was $5,000 and a pro wrestling-style championship belt. The format for the finals was a mock-up of World of Warcraft, an online role-playing game. It required the 12 men (this particular nerdfest was mostly a guy thing) to design Excel formulas for tracking 20 avatars and their vital signs... To prepare, [competitor Diarmuid] Early adjusted the width of his Excel columns with the precision of a point guard lining up a 3-point shot. [Andrew] Ngai queued up a YouTube compilation of "focus music". After an announcer kicked off the 40-minute event — "Five, four, three, two, one, and Excel!" — the 12 players leaned over their keyboards and began plugging in formulas. One example: "=CountChar (Lower (D5),"W")" allowed one competitor, Michael Jarman, to figure out how many times the letter "W" appeared in a spreadsheet.
ZDNet points out that there's a seven-hour livestream of the event that's "worth checking out for the opening theme song alone."

The New York Times closes their article with a quote from super-fan Erik Oehm, a software developer from San Francisco who called the event "the Super Bowl for Excel nerds". Oehm watched excitedly from the front row as this year's winner — Michael Jarman — finally raised the championship belt overhead while someone dumped glitter on him. And then he said...

"You'd never see this with Google Sheets. You'd never get this level of passion."
Education

New Michigan Law Requires High Schools to Offer CS Classes (michigan.gov) 66

The state of Michigan will now require each public high school in the state to offer at least one computer science course to its students. "This bill aligns Michigan with a majority of the country," according to the state's announcement, which says the bill "advances technological literacy" and ensures their students "are well-equipped with the critical thinking skills necessary for success in the workforce."

Slashdot reader theodp writes: From the Michigan House Fiscal Agency Analysis: "Supporters of the bill say that increasing access to computer science courses for students in schools should be a priority of the state in order to ensure that students can compete for the types of jobs that have good pay and will be needed in the coming decades."

That analysis goes on to report that testifying in favor of the bill were tech-giant backed nonprofit Code.org (Microsoft is a $30 million Code.org donor), Amazon and AWS (Amazon is a $30+ million Code.org donor), the tech-supported Computer Science Teachers Association (CSTA), and the lobbying organization TechNet, whose members include Amazon, Apple, Google, Meta, and OpenAI).

It's not clear how many high schools in Michigan are already teaching CS courses, but this still raises a popular question for discussion. Should high schools be required to teach at least one CS course?
Social Networks

Oracle and US Investors (Including Microsoft) Discuss Taking Control of TikTok in the US (npr.org) 53

A plan to keep TikTok available in the U.S. "involves tapping software company Oracle and a group of outside investors," reports NPR, "to effectively take control of the app's global operations, according to two people with direct knowledge of the talks..."

"[P]otential investors who are engaged in the talks include Microsoft." Under the deal now being negotiated by the White House, TikTok's China-based owner ByteDance would retain a minority stake in the company, but the app's algorithm, data collection and software updates will be overseen by Oracle, which already provides the foundation of TikTok's web infrastructure... "The goal is for Oracle to effectively monitor and provide oversight with what is going on with TikTok," said the person directly involved in the talks, who was not authorized to speak publicly about the deliberations. "ByteDance wouldn't completely go away, but it would minimize Chinese ownership...." Officials from Oracle and the White House held a meeting on Friday about a potential deal, and another meeting has been scheduled for next week, according to the source involved in the discussions, who said Oracle is interested in a TikTok stake "in the tens of billions," but the rest of the deal is in flux...

Under a law passed by Congress and upheld by the Supreme Court, TikTok must execute what is known as "qualified divestiture" from ByteDance in order to stay in business in the U.S... A congressional staffer involved in talks about TikTok's future, who was not authorized to speak publicly, said binding legal agreements from the White House ensuring ByteDance cannot covertly manipulate the app will prove critical in winning lawmakers' approval. "A key part is showing there is no operational relationship with ByteDance, that they do not have control," the Congressional staffer said. "There needs to be no backdoors where China can potentially gain access...."

Chinese regulators, who have for years opposed the selling of TikTok, recently signaled that they would not stand in the way of a TikTok ownership change, saying acquisitions "should be independently decided by the enterprises and based on market principles." The statement, at first, does not seem to say much, but negotiators in the White House believe it indicates that Beijing is not planning to block a deal that gives American investors a majority-stake position in the company.

"Meanwhile, Apple and Google still have not returned TikTok to app stores..."
Power

Could New Linux Code Cut Data Center Energy Use By 30%? (datacenterdynamics.com) 65

Two computer scientists at the University of Waterloo in Canada believe changing 30 lines of code in Linux "could cut energy use at some data centers by up to 30 percent," according to the site Data Centre Dynamics.

It's the code that processes packets of network traffic, and Linux "is the most widely used OS for data center servers," according to the article: The team tested their solution's effectiveness and submitted it to Linux for consideration, and the code was published this month as part of Linux's newest kernel, release version 6.13. "All these big companies — Amazon, Google, Meta — use Linux in some capacity, but they're very picky about how they decide to use it," said Martin Karsten [professor of Computer Science in the Waterloo's Math Faculty]. "If they choose to 'switch on' our method in their data centers, it could save gigawatt hours of energy worldwide. Almost every single service request that happens on the Internet could be positively affected by this."

The University of Waterloo is building a green computer server room as part of its new mathematics building, and Karsten believes sustainability research must be a priority for computer scientists. "We all have a part to play in building a greener future," he said. The Linux Foundation, which oversees the development of the Linux OS, is a founder member of the Green Software Foundation, an organization set up to look at ways of developing "green software" — code that reduces energy consumption.

Karsten "teamed up with Joe Damato, distinguished engineer at Fastly" to develop the 30 lines of code, according to an announcement from the university. "The Linux kernel code addition developed by Karsten and Damato was based on research published in ACM SIGMETRICS Performance Evaluation Review" (by Karsten and grad student Peter Cai).

Their paper "reviews the performance characteristics of network stack processing for communication-heavy server applications," devising an "indirect methodology" to "identify and quantify the direct and indirect costs of asynchronous hardware interrupt requests (IRQ) as a major source of overhead...

"Based on these findings, a small modification of a vanilla Linux system is devised that improves the efficiency and performance of traditional kernel-based networking significantly, resulting in up to 45% increased throughput..."
AI

Apple Enlists Veteran Software Executive To Help Fix AI and Siri (yahoo.com) 30

An anonymous reader quotes a report from Bloomberg: Apple executive Kim Vorrath, a company veteran known for fixing troubled products and bringing major projects to market, has a new job: whipping artificial intelligence and Siri into shape. Vorrath, a vice president in charge of program management, was moved to Apple's artificial intelligence and machine learning division this week, according to people with knowledge of the matter. She'll be a top deputy to AI chief John Giannandrea, said the people, who asked not to be identified because the change hasn't been announced publicly. The move helps bolster a team that's racing to make Apple a leader in AI -- an area where it's fallen behind technology peers. [...]

Vorrath, who has spent 36 years at Apple, is known for managing the development of tough software projects. She's also put procedures in place that can catch and fix bugs. Vorrath joins the new team from Apple's hardware engineering division, where she helped launch the Vision Pro headset. Over the years, Vorrath has had a hand in several of Apple's biggest endeavors. In the mid-2000s, she was chosen to lead project management for the original iPhone software group and get the iconic device ready for consumers. Until 2019, she oversaw project management for the iPhone, iPad and Mac operating systems, before taking on the Vision Pro software. Haley Allen will replace Vorrath overseeing program management for visionOS, the headset's operating system, according to the people.

Prior to joining Giannandrea's organization, Vorrath had spent several weeks advising Kelsey Peterson, the group's previous head of program management. Peterson will now report to Vorrath -- as will two other AI executives, Cindy Lin and Marc Schonbrun. Giannandrea, who joined Apple from Google in 2018, disclosed the changes in a memo sent to staffers. The move signals that AI is now more important than the Vision Pro, which launched in February 2024, and is seen as the biggest challenge within the company, according to a longtime Apple executive who asked not to be identified. Vorrath has a knack for organizing engineering groups and creating an effective workflow with new processes, the executive said. It has been clear for some time now that Giannandrea needs additional help managing an AI group with growing prominence, according to the executive. Vorrath is poised to bring Apple's product development culture to the AI work, the person said.

Television

Netflix's Cloud Plans Include Co-Op and Party Games (theverge.com) 9

Netflix plans to expand its cloud gaming offerings to include couch co-op and party games, according to co-CEO Greg Peters. The company will also continue developing narrative games based on its IP, despite recent leadership changes and the closure of its AAA game studio. The Verge reports: In the blog post, Netflix notes that it's a "limited" beta test, so it seems like this won't be available to too many people to start. (Netflix used that same "limited" language with the initial launch in Canada and the UK.) Like with the original test, the only two games available to stream are Oxenfree from Netflix's own Night School Studio and another game titled Molehew's Mining Adventure.

If you have access to the service, you'll need to download Netflix's special controller app for your iPhone or Android device to play the game on your TV. (Netflix says the streamed games work on "select devices," including Amazon Fire TV devices, Chromecast with Google TV, Roku devices and TVs, and more.) On the web, you'll be able to play games with a mouse and keyboard.

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