"Google has decided to disable a feature in Windows 10 version 2004 that allowed Chrome and Microsoft Edge browsers to use a lot less RAM," reports ZDNet: Windows 10 gave Win32 apps including Chrome access to a 'segment heap' API to allow apps to reduce memory usage, but as Techdows spotted, Chromium engineers have decided for now to turn off the feature by default in Chrome 85 after discovering it has a negative impact on CPU usage. Chrome 85 should reach stable status in August...

The CPU issue was discovered by an Intel engineer who found that when Chrome used segment heap, it led to significant performance regression in benchmarks on a PC with an Intel Core i9-9900K processor...

Microsoft has defended the trade-off between memory and CPU but conceded it can be implemented better to reduce the impact on CPU performance. "It is common practice to trade one resource for another. More often it's increased memory usage for reduced CPU usage. In this case it's increased CPU usage for dramatically reduced memory usage, or more accurately commit," wrote a Microsoft employee... "In the short term this is a good trade-off of one resource for another as memory/commit usage is a significant pain point for browser users," argued the Microsoft employee....

However, Chromium developers want to see more evidence about the possible impact of Chrome using segment heap... "The CPU cost (10% slowdown on Speedometer 2.0, 13% increase in CPU/power consumption) is too great for us to keep."

AMD finally brings a workstation-class -- in other words, security-conscious -- processor to challenge the Intel Xeon on the desktop with its Ryzen Threadripper Pro. With up to 64 cores, the pro version of AMD's multicore powerhouse Threadripper processors incorporates essentials like support for massive amounts of memory and board-level security, critical for uses which move a ton of sensitive data, ranging from aerospace visualization to Hollywood video editing and CGI rendering. The CPU debuts in Lenovo's ThinkStation P620; Lenovo has a limited exclusive on the processor. From a report: The CPU comes in four variants: 3945WX (12 cores, with the fastest single-core speeds), 3955WX (16 cores), 3975WX (32 cores) and 3995WX (64 cores). At the moment, to achieve core counts that high with the Intel Xeon, you have to use multiple CPUs. They all come with some of the perks of AMD's architecture, including support for PCI Gen4 -- in this case, up to 128 lanes. And the Pro versions add support for more types of memory, notably RDIMM and LRDIMM, over the high-end consumer-focused Threadripper, plus 8 memory channels vs. 4, which lets it support up to 2TB of memory. On the downside, while AMD supports faster internal transfers than Intel via PCI 4, it doesn't offer any high-speed external data transfer capabilities a la Thunderbolt 3. And in fact, the ThinkStation P620's fastest connections are USB 3.2 Gen 2 and 10Gb Ethernet.

Today, Qualcomm is announcing an update to its extremely successful Snapdragon 865 SoC: the new Snapdragon 865+. AnandTech reports: The new Snapdragon 865+ is a new binned variant of the [Snapdragon 865] with higher peak frequencies on the part of the "prime" CPU as well as the GPU, promising +10% performance on both aspects. Whilst in relative terms the new chipset's +10% clock improvement isn't all that earth-shattering, in absolute terms it finally allows the new Snapdragon 865+ to be the first mobile SoC to break past the 3GHz threshold, slightly exceeding that mark at a peak 3.1GHz frequency. Ever since the Cortex-A75 generation we've seen Arm make claims about their CPU microarchitectures achieving such high clock frequencies -- however in all those years actual silicon products by vendors never really managed to quite get that close in commercial mass-production designs.

We've had a chat with Qualcomm's SVP and GM of mobile business Alex Katouzian, about how Qualcomm achieved this, and fundamentally it's a combination of aggressive physical design of the product as well as improving manufacturing yields during the product's lifecycle. Katouzian explained that they would have been able to achieve these frequencies on the vanilla Snapdragon 865 -- but they would have had a lower quantity of products being able to meet this mark due to manufacturing variations. Yield improvements during the lifecycle of the Snapdragon 865 means that the company is able to offer this higher frequency variant now. [...] There will be a power increase to reach the higher frequencies, however this will only be linear with the increased clock speed, meaning energy efficiency of the new SoC will maintain the same excellent levels of that of the Snapdragon 865, so battery life will not be affected. [...] Amongst other new novelties of the Snapdragon 865+ platform is the ability for vendors to bundle with the new FastConnect 6900 Wi-Fi chips from Qualcomm, the company's new Wi-Fi 6 chipsets with 6GHz band capability (Wi-Fi 6E).

Intel unveiled Thunderbolt 4 on Wednesday, the next iteration of the I/O specification that provides a high-speed peripheral bus to docks, displays, external storage and eGPUs for PCs. Rather than increase the available bandwidth, however, Thunderbolt 4 provides more clarity and helps create new categories of products. From a report: Thunderbolt 4 will debut later this year as part of Intel's "Tiger Lake" CPU platform, as Intel originally announced during CES in January. We now know it will support 40Gbps throughput, but with tighter minimum specs. Thunderbolt 4 will guarantee that a pair of 4K displays will work with a Thunderbolt dock, and require Thunderbolt 4-equipped PCs to charge on at least one Thunderbolt port. Thunderbolt PCs will be able to connect to either "compact" or "full" docks with up to four Thunderbolt ports. Longer Thunderbolt cables will be possible, too. One thing that doesn't seem to be changing is Thunderbolt's exclusivity. Intel developed Thunderbolt, and perhaps not coincidentally, OEM systems based on rival AMD's CPUs have never had this technology. While AMD has officially dismissed the need for Thunderbolt, with generation 4 Intel appears to have made it even harder for AMD to get it, even if it wanted to. Intel's still pitching Thunderbolt as a single standard to rule them all, but the reality up to now has been complicated. You still have to squint hard at that USB-C-shaped port to determine which of the multitude of USB specifications it meets, including whether it's a USB4 connection that happens to support Thunderbolt. To muddy things further, Thunderbolt also encompasses PCIe, DisplayPort, and USB Power Delivery standards.

MojoKid writes: Last month, AMD made its Ryzen 3000XT series processors official, after weeks of leaks and speculation. Ryzen 3000XT series processors are tweaked versions of the original 3000X series products, but with higher clocks and the ability to maintain turbo frequencies longer. Launching today, AMD's new Ryzen 5 3600XT is a 6 core/12-thread processor, with a 3.8GHz base clock and a 4.5GHz max boost clock. That's a 100MHz increase over the 3600X. The Ryzen 7 3800XT is an 8-core/16-thread processor with a base clock of 3.9GHz and a max boost clock of 4.7GHz, which is 200MHz higher than the original 3800X. Finally, the Ryzen 9 3900XT is a 12-core/24-thread processor with a base clock of 3.8GHz with a max boost clock of 4.7GHz, which is a 100MHz increase over the original Ryzen 9 3900X.

AMD also notes these new processors can maintain boost frequencies for somewhat longer durations as well, which should offer an additional performance uplift, based on refinements made to the chip's 7nm manufacturing process. In testing, the new CPUs offer small performance gains over their "non-XT" namesakes, with 100MHz - 200MHz increases in boost clocks resulting in roughly 2% - 5% increases to both their single and multi-threaded performance in most workloads. Those frequency increases come at the expense of slightly higher peak power consumption as well of course. The best news may be that AMD's original Ryzen 5 3600X, Ryzen 7 3800X, and the Ryzen 9 3900X will remain in the line-up for the time being, but their prices will be slashed a bit, with the new Ryzen 5 3600XT, Ryzen 7 3800XT, and Ryzen 9 3900XT arriving with the same $249, $399, and $499 introductory prices as the originals.

An anonymous reader quotes a report from Ars Technica: After years of repackaging the same basic smartwatch chip over and over again, Qualcomm has graced Wear OS with a modern smartwatch SoC. Meet the Snapdragon Wear 4100, a Qualcomm smartwatch chip that, for the first time ever, is faster than the previous chip. The Wear 4100 uses four 1.7GHz Cortex A53 CPUs built on a 12nm manufacturing process, a major upgrade from the 28nm Cortex A7s that every other Qualcomm smartwatch chip has been up until now. It's not the state-of-the-art 7nm process that Qualcomm's high-end chip uses, and the Cortex A53 is an old CPU design, but for Qualcomm, it's a major upgrade. Between the new CPU, the Adreno 504 GPU, and faster memory, Qualcomm is promising "85% faster performance" compared to the Wear 3100.

There are actually two versions of the 4100, the vanilla "4100" and the "4100+." The plus version is specifically for smartwatches with an always-on watch face, and like previous Wear SoCs, comes with an extra low-power SoC (based around a Cortex-M0) to keep the time updated and log sensor data (like step counts). Qualcomm is promising a better display image quality in this low-power mode, with more colors and a smoother display. There are also dual DSPs now, which Qualcomm says are for "optimal workload partitioning, support for dynamic clock and voltage scaling, Qualcomm Sensor Assisted Positioning PDR Wearables 2.0, low power location tracking support, and an enhanced Bluetooth 5.0 architecture." There are also dual ISPs with support for 16MP sensors (on a smartwatch?). As usual, connectivity options are plentiful, with onboard LTE, GPS, NFC, Wi-Fi 802.11n, and Bluetooth 5.

As expected, developers with early access to Apple silicon-based transition kits have leaked some early benchmarks scores. And it's bad news for Surface Pro X and Windows 10 on ARM fans. Thurrott reports: According to multiple Geekbench scores, the Apple Developer Transition Kit -- a Mac Mini-like device with an Apple A12Z system-on-a-chip (SoC), 16 GB of RAM, and 512 GB of SSD storage -- delivers an average single-core score of 811 and an average multi-core score of 2871. Those scores represent the performance of the device running emulated x86/64 code under macOS Big Sur's Rosetta 2 emulator.

Compared to modern PCs with native Intel-type chipsets, that's not all that impressive, but that's to be expected since it's emulated. But compared to Microsoft's Surface Pro X, which has the fastest available Qualcomm-based ARM chipset and can run Geekbench natively -- not emulated -- it's amazing: Surface Pro X only averages 764 on the single-core test and 2983 in multi-core. Right. The emulated performance of the Apple silicon is as good or better than the native performance of the SQ-1-based Surface Pro X. This suggests that the performance of native code on Apple silicon will be quite impressive, and will leave Surface Pro X and WOA in the dust.

Microsoft's second next-gen Xbox is rumored to be fully revealed in August. According to Eurogamer, the console will be named the Xbox Series S. From a report: Microsoft has been working on this second cheaper next-gen Xbox console for months. A Microsoft document, leaked last week, shed some further light on the company's plans. Microsoft's Xbox Series X devkit, codenamed "Dante," allows game developers to enable a special Lockhart mode that has a profile of the performance that Microsoft wants to hit with this second console. While we've been reporting this performance includes a slightly underclocked CPU, The Verge has seen additional documents that suggest Lockhart will actually have the same speed CPU as the Xbox Series X. The Lockhart console will also include 7.5GB of usable RAM, and around 4 teraflops of GPU performance. The Xbox Series X includes 13.5GB of usable RAM and targets 12 teraflops of GPU performance for comparison.

If the reports are accurate, Microsoft could choose August to unveil this second next-gen Xbox alongside pricing for the Xbox Series X. This second console is designed as a more affordable option, with 1080p and 1440p monitors in mind. Microsoft would have to detail some type of pricing alongside its Lockhart reveal, and it's reasonable to assume it will be heavily tied to the Xbox All Access subscription.

Microsoft has been planning a second, cheaper and less power next-gen Xbox console. Codenamed Lockhart, it's designed to take most of the key next-gen improvements found in the Xbox Series X and provide them at a lower price point for gaming at 1080p or 1440p. A newly leaked Microsoft document, posted on Twitter, includes references to this Lockhart console and multiple "Project Scarlett consoles." From a report: Project Scarlett was the name Microsoft originally used to reveal its Xbox Series X console before it was officially named. Rumors had suggested two next-gen consoles under the broader Project Scarlett plans: Anaconda and Lockhart. Microsoft has etched an anaconda snake into the Xbox Series X mainboard, but the company has never publicly discussed its Lockhart plans. The leaked document also mentions a Lockhart profiling mode. Sources familiar with Microsoft's Xbox plans tell The Verge that this special Lockhart mode is part of the Xbox Series X developer kit. The devkit, codenamed Dante, allows game developers to enable a special Lockhart mode that has a profile of the performance that Microsoft wants to hit with this second console. We understand that includes 7.5GB of usable RAM, a slightly underclocked CPU speed, and around 4 teraflops of GPU performance. The Xbox Series X includes 13.5GB of usable RAM, and targets 12 teraflops of GPU performance.

After 15 years, Apple will again transition the Mac to a new architecture. The company announced at its developer conference today that it will introduce Macs featuring Apple-designed, ARM-based processors similar to those already used in the iPhone and iPad. From a report: Tim Cook pegged this switch as one of the four biggest transitions the mac has ever had. Alongside the more to PowerPC, the move to Intel, and the transition to Mac OS X, ARM will be one of the biggest mac changes ever. Apple is promising "a whole new level of performance" with a "Family of Mac SoCs." The transition to ARM from x86 means that some apps will be native and some won't. For mac OS 10.16, Apple says that all of the Apple 10.16 apps are native ARM apps. Xcode developers can "just open their apps and recompile" to get an ARM binary. "Universal 2" is a new type of binary that will run on Intel and ARM macs. Microsoft Office and Adobe's creative suite (Photoshop) were demoed as native ARM apps. Final Cut Pro has an ARM version too, along with a features that run on the "Neural Engine" in the Apple SoC.

Apple says it wants to make sure users can run all their apps on their ARM mac, even if they aren't native. So, just like with the PowerPC-to-Intel transition, Apple is dusting off the Rosetta brand with Rosetta 2, which is now an x86-to-ARM emulator. This move has been predicted for years, as the upsides for Apple are clear. Cupertino has always valued tight integration of hardware, software, and services, but Macs have been outliers among Apple's products in their reliance on an outside party for the CPU. (iPhones and other Apple products do contain display panels, modems, and camera components made by other companies, though.) So far, Apple's chip division has excelled in every market it has entered. In the world of smartphones, the company's SoCs are easily a generation ahead of the best Qualcomm, Samsung, and Mediatek have to offer. Apple's most dominant smartphone showing is probably the iPhone SE, a $400 iPhone that will out-perform $1200 Android phones thanks to the A13 Bionic SoC.

Ars Technica's technology reporter Jim Salter tested Walmart's 11.6-inch EVOO laptop, which sells for $139 and ships with just 2GiB of RAM and a 32GB SSD, which he worries "simply is not enough room for Windows itself, let alone any applications." The first thing I noticed while looking through the Windows install is that our "internal" Wi-Fi is actually a cheap USB 2.0 Realtek adapter — and it's 2.4GHz-only 802.11n, at that. The second thing I noticed was the fact that I couldn't install even simple applications, because the laptop was in S mode. For those unfamiliar, S mode locks a system into using only the Edge browser and only apps from the Microsoft Store. Many users end up badly confused by S mode, and some unnecessarily buy a new copy of Windows trying to get out of it. Fortunately, if you click the "learn more" link in the S mode warning that pops up when you attempt to load a non-Store app, you are eventually led to a free Microsoft Store app which turns S mode off. On my first try, this app crashed. But on the second, it successfully disabled S mode, leaving me with a normal Windows install....

I verified that I was on an older version of Windows 10 — build 1903, from March 2019 — and initiated an upgrade to build 2004, from April 2020. Windows 10 was having none of it. It wanted at least 8GiB of free space on C:, and I couldn't even get to 6GiB free, after only a day of using the system.... Meaningful benchmark results were impossible to attain on this laptop, since it was too slow and quirky to even run the benchmarks reliably. But I didn't let a silly thing like "being obviously inappropriate" stop me from slogging painfully through the benchmarks and getting what numbers I could. The first suite up, PCMark 10, eventually produced a score of zero. I didn't know that a zero score was even possible. Apparently, it is... Cinebench R20 also took several tries to complete successfully, and eventually the test produced a jaw-droppingly bad score of 118...

Under Fedora 32 — selected due to its ultra-modern kernel, and lightweight Wayland display manager — the EVOO was incredibly balky and sluggish. To be fair, Fedora felt significantly snappier than Windows 10 had on this laptop, but that was a very, very low bar to hurdle. The laptop frequently took as long as 12 seconds just to launch Firefox. Actually navigating webpages wasn't much better, with very long pauses for no apparent reason. The launcher was also balky to render — and this time, with significantly lower memory usage than Windows, I couldn't just blame it on swap thrashing... [W]ith the laptop completely open, several questions are answered — the reason I hadn't heard any fan noise up until this point is because there is no fan, and the horrible CPU performance is because the CPU can't perform any better than it does without cooking itself in its own juices....

At first, I mistakenly assumed that the A4-9120 was just thermally throttling itself 24/7. After re-assembling it and booting back into Fedora, I found the real answer — the normally 2.5GHz chip is underclocked to an anemic 1.5GHz. The system BIOS confirms this clockrate but offers no room to adjust it — which is a shame, since the system never hit temperatures higher than about 62C in my testing.
His verdict? Walmart's EVOO laptop "doesn't have either the RAM or the storage to do an even vaguely reasonable job for normal people doing normal things under Windows, even when limited to S mode...

"There may be a purpose this laptop is well-suited to — but for the life of me, I cannot think what it might be."

Forbes reports on ThreeFold, an ambitious new "long-term project to rewire the internet in the image of its first incarnation: decentralized, unowned, accessible, free." "We have 18,000 CPU cores and 90 million gigabytes, which is a lot of capacity," founder Kristof de Spiegeleer told me recently on the TechFirst podcast. "It's probably between five and ten times more than all of the capacity of all the blockchain projects together..."

"It's a movement," de Spiegeleer says about ThreeFold. "It's where we invite a lot of people to...basically help us to build a new internet. Now it sounds a little bit weird building a new internet. We're not trying to replace the cables... what we need help with is that we get more compute and storage capacity close to us." That would be a fundamentally different kind of internet: one we all collectively own rather than just one we all just use.

It requires a lot of different technology for backups and storage, for which ThreeFold is building a variety of related technologies: peer-to-peer technology to create the grid in the first place; storage, compute, and network technologies to enable distributed applications; and a self-healing layer bridging people and applications. Oh, and yes. There is a blockchain component: smart contracts for utilizing the grid and keeping a record of activities. "Farmers" (read: all of us) provide capacity and get micropayments for usage.

So instead of a Bitcoin scenario where some of the fastest computers in the world waste country-scale amounts of electricity doing arcane math to create an imaginary currency with dubious value (apologies, are my biases showing?) you have people providing actual tangible services for others in exchange for some degree of cryptocurrency reward. Which, in my (very) humble opinion, offers a lot more social utility...

ThreeFold and partners have invested more than $40 million in make it happen, de Spiegeleer says, and there are more than 30 partners working on the project or onboarding shortly. "So it's happening," he says.
In the interview, de Spiegeleer points out 80% of current internet capacity is owned by less than 20 companies, arguing on the podcast that "It really needs to be something like electricity.

"It needs to be everywhere and everyone needs to have access to it. It needs to be cost effective, it needs to be reliable, it needs to be independent..."

AMD has announced three new additions to its desktop Ryzen CPU line: Ryzen 9 3900XT, Ryzen 7 3800XT, and Ryzen 5 3600XT. Ars Technica reports on the technical details: The new CPU designs take advantage of newly optimized 7nm process technology to offer higher performance at the same TDPs as Ryzen 3000 designs. The new 3000XT CPUs are drop-in replacements on AM4 motherboards that supported Ryzen 3000 CPUs and offer small (up to 4 percent) single-threaded performance improvements over their Ryzen 3000 counterparts. Although the single-threaded performance improvements are small, the margins between CPUs in that stat tend to be razor-thin, and AMD says they're enough to take the coveted single-thread performance crown away from Intel. A 4 percent improvement to the Ryzen 9 3900X score shown on the CGDirector leaderboard would come out to 531 -- a few points higher than CGDirector's posted score for the i9-10900K, although a few points lower than our own Cinebench R20 result for that processor, using an NZXT fluid-cooler and Primochill Praxis open-air bench.

AMD has determined that most consumers are discarding the free Wraith Spire coolers in favor of higher-performance third-party cooling systems -- so in the 3000XT line, only the Ryzen 5 3600XT retains the included OEM cooler. Ryzen 9 3900XT and Ryzen 7 3800XT will require the consumer to supply their own cooling solution, and AMD recommends "a minimum 280mm radiator or equivalent air cooling." The company offers the existing 3950X compatibility list for those who aren't sure what to buy. AMD also announced a new motherboard chipset for Ryzen 3000 desktop processors: the A520. A new version of AMD's StoreMI software will also be coming soon.

AMD's press release can be read here.

The history of hacking has largely been a back-and-forth game, with attackers devising a technique to breach a system, defenders constructing a countermeasure that prevents the technique, and hackers devising a new way to bypass system security. On Monday, Intel is announcing its plans to bake a new parry directly into its CPUs that's designed to thwart software exploits that execute malicious code on vulnerable computers. From a report: Control-Flow Enforcement Technology, or CET, represents a fundamental change in the way processors execute instructions from applications such as Web browsers, email clients, or PDF readers. Jointly developed by Intel and Microsoft, CET is designed to thwart a technique known as return-oriented programming, which hackers use to bypass anti-exploit measures software developers introduced about a decade ago. While Intel first published its implementation of CET in 2016, the company on Monday is saying that its Tiger Lake CPU microarchitecture will be the first to include it. ROP, as return-oriented programming is usually called, was software exploiters' response to protections such as Executable Space Protection and address space layout randomization, which made their way into Windows, macOS, and Linux a little less than two decades ago. These defenses were designed to significantly lessen the damage software exploits could inflict by introducing changes to system memory that prevented the execution of malicious code. Even when successfully targeting a buffer overflow or other vulnerability, the exploit resulted only in a system or application crash, rather than a fatal system compromise.

Linux computer maker/seller System76 has been offering AMD processors in its Thelio desktop computers, but believe it or not, the company has never offered an AMD-powered laptop -- until now, that is. From a report: You see, starting today, you can buy a "Serval WS" powered by AMD. No, System76 is not offering mobile Ryzen chips in this laptop, but instead, desktop-class processors. As you can expect, this 15-inch portable Linux workstation is quite chunky and heavy as a result. With that said, it is simply impossible to cram this much power into a thin and light notebook. "The Serval WS comes with either the 3rd Gen Ryzen 3600, 3700X, or 3900 CPU. The latter is equipped with 12 Cores and 24 Threads, making this laptop perfect for taking on heavy computational loads. Having this kind of desktop-caliber power in a laptop body helps if you need to run complex simulations at your desk or quickly render 3D scenes while on the road. AMD CPUs are also known for having the an extremely high price per performance, which means you get maximum bang-for-buck," says System76. The laptop starts at $1,300 -- and BetaNews has all the specs.

Academics from a university in the Netherlands have published details today about a new vulnerability in Intel processors. From a report: The security bug, which they named CrossTalk, enables attacker-controlled code executing on one CPU core to leak sensitive data from other software running on a different core. The Vrije University's Systems and Network Security Group (VUSec) says the CrossTalk vulnerability is another type of MDS (microarchitectural data sampling) attack. MDS attacks target user data while in a "transient" state, as it's being processed inside the CPU and its many data-caching systems. More specifically, CrossTalk attacks data while it's being processed by the CPU's Line Fill Buffer (LBF), one of these aforementioned CPU cache systems. According to the VUSec team, the LBF cache actually works with a previously undocumented memory "staging buffer" that is shared by all CPU cores.

AMD "has a potent combination of both CPU and GPU technologies," writes Slashdot reader MojoKid, that "can play well in the laptop market especially, where a tight coupling of the two processing engines can mean both performance and cost efficiencies." One of the first all-AMD laptops to hit the market powered by the company's new Ryzen 4000 mobile processors is the Dell G5 15 SE, it's a 5.5 pound, 14.4-inch machine [with a 15.6-inch display] that sports an understated design for a gaming notebook but with an interesting glittery finish that resists fingerprints well. With a retail price of $1199 (starting at $879), the model tested at HotHardware is powered by an AMD Ryzen 4800H 8-core processor that boosts to 4.2GHz and an AMD Radeon RX 5600M mobile GPU with 6GB of GDDR6 memory...

In the benchmarks, AMD's SmartShift technology load-balances CPU and GPU power supply for optimal performance and very respectable numbers that are competitive with any similar Intel/NVIDIA powered machine. The Dell G5 15 SE put up north of 60 FPS frame rates at maximum image quality in current-gen game titles, but with a significantly better price point, relatively speaking.
The GPU also has 2,304 stream processors across 36 compute units, and "Overall, we think Dell hit it out of the park with the new G5 15 SE," the review concludes.

"This all-AMD budget blockbuster has all of the gaming essentials: a fast processor, a powerful GPU, and a 144 Hz display."

An anonymous reader quotes a report from VentureBeat: Google today launched Android Studio 4.0, the latest version of its integrated development environment (IDE). Android Studio 4.0 is supposed to help developers "code smarter, build faster, and design apps." Version 4.0 includes a new Motion Editor, a Build Analyzer, and Java 8 language APIs. Google also overhauled the CPU Profiler user interface and improved the Layout Inspector. [In the article] you'll find Android Studio 4.0 features broken down by category: design, develop, and build. The new version also includes the usual performance improvements and bug fixes on top of the new features (full release notes). Google didn't share its plans for the next version. Normally we'd get hints at the company's I/O developer conference, but 2020 is a weird year.

The Raspberry Pi Foundation has doubled the maximum amount of RAM available in the Raspberry Pi 4 to 8GB with a new device it's selling for $75. An anonymous reader writes: To take advantage of the RAM increase, the foundation is also releasing a new 64-bit version of its operating system in early beta. The new Raspberry Pi 4 is otherwise identical to the device that was announced in June last year, meaning it has the same ARM-based CPU, and HDMI, USB 3, and Ethernet ports. 8GB is a lot of RAM considering the Raspberry Pi's size and price. It's the same as many flagship smartphones released this year, and enough for an entry-level gaming PC. The Raspberry Pi Foundation says the additional memory should be useful for compiling large pieces of software, running heavy server workloads, or maybe just having more browser tabs open at once. We're sure that it won't take long for the community to come up with many interesting uses.

Adam Engst, writing for TidBITS: Because force-quitting apps and restarting or shutting down devices are necessary only to fix unanticipated problems, there are two notable downsides to engaging in such behavior as a matter of habit: reduced battery life and wasted time. Why would these behaviors reduce battery life? Remember, iOS is a modern operating system that's built on top of Apple's proprietary hardware. Apple has put a great deal of effort into ensuring that iOS knows the best ways to manage the limited hardware resources within your iPhone or iPad. No one, possibly short of an iOS systems engineer armed with Apple's internal diagnostic and debugging tools, would be able to outguess iOS itself on issues like memory usage, power draw, and CPU throttling.

When you invoke the App Switcher in iOS, you can swipe right to see all the apps you've used, possibly since you got your device. (The very first app in my iPhone 11 Pro's App Switcher is Apple's Tips, which I think came up automatically when I turned the iPhone on last year and hasn't been touched since. It's difficult to count apps in the App Switcher, but I probably have at least a hundred in there.) As the number of apps in the App Switcher should indicate, those apps are not necessarily running -- they merely have run at some point in the past. They're much more like the contents of the Mac's Apple > Recent Items menu. In normal usage, iOS devotes the lion's share of CPU and memory resources to the app that you're using. That's sensible -- the performance of that app is paramount. However, the next few apps in the App Switcher may also be consuming some CPU and memory resources. That's because iOS correctly assumes that you're most likely to return to them, and it wants to give you the best experience when you do. The screen shouldn't have to redraw multiple times, Internet-loaded content shouldn't have to update, and so on. [...]