Posted on

Testing ntttcp as an iperf3 alternative in Windows 11 (and Linux)

ntttcp (Windows NT Test TCP) is a network benchmarking utility similar to iperf3 that works in both Windows and Linux written and recommended by Microsoft over iperf3, so we’ll test the alternative in this mini review. iperf3 is a utility of choice for our reviews of single board computers and mini PCs running either Windows or Linux, but we’ve noticed that while Ethernet (up to 2.5GbE) usually performs just as well in Windows and Linux, WiFi is generally much faster in Ubuntu 22.04 than in Windows 11. So when XDA developers noticed a post by Microsoft saying iperf3 should not be used on Windows 11, it caught my attention. Microsoft explains iperf3 should not be used in Windows for three main reasons: The maintainer of iperf – ESnet (Energy Sciences Network) – says “iperf3 is not officially supported on Windows, but iperf2 is. We recommend you use iperf2. Some people […]

Posted on

Kamvas Pro 16 (2.5K) review – A 15.8-inch drawing tablet and stylus with 8192 levels of pressure sensitivity

HUION Kamvas Pro 16 (2.5K) is a 15.8-inch drawing tablet with 2.5K resolution that comes with a stylus supporting 8192 levels of pressure. The company sent us a review sample, so I’ll test it as an external display in Windows 11 and Ubuntu 22.04, and check the drawing functions of the Kamvas Pro 16 with the stylus as well as other potential use cases. Kamvas Pro 16 (2.5K) specifications (model GT1602) But before that, let’s list the specifications of the display: Panel – 15.8-inch (diagonal) IPS display at 60 Hz Resolution – 2560 x 1440 (16:9) QHD PPI (Pixels Per Inch) – 186 Active Area – 349.6 x 196.7 mm Contrast Ratio – 1200:1 Brightness – 220nit (Max.) Response Time – 14ms Viewing Angle – 178° (89°/89°(H)/89°/89°(V) (Typ.)(CR＞10)) Color Gamut Volume – 145% sRGB Color Gamut Coverage – 99% sRGB / 99% Adobe RGB Colors – 16.7M (8-bit) Surface Finish […]

ArmSoM CM5 Raspberry Pi CM4 alternative with Rockchip RK3576 SoC
Posted on

Linux 6.8 release – Notable changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds has just announced the release of Linux 6.8 on the Linux kernel mailing list: So it took a bit longer for the commit counts to come down this release than I tend to prefer, but a lot of that seemed to be about various selftest updates (networking in particular) rather than any actual real sign of problems. And the last two weeks have been pretty quiet, so I feel there’s no real reason to delay 6.8. We always have some straggling work, and we’ll end up having some of it pushed to stable rather than hold up the new code. Nothing worrisome enough to keep the regular release schedule from happening. As usual, the shortlog below is just for the last week since rc7, the overall changes in 6.8 are obviously much much bigger. This is not the historically big release that 6.7 was – we seem to […]

Posted on

Embedded Open Source Summit 2024 schedule – Embedded Linux, Zephyr OS, and Real-time Linux

The Embedded Open Source Summit 2024 (EOSS 2024) will take place on April 16-18 and the Linux Foundation has already announced the schedule with conference sessions, lightning talks, and birds of a feather (BoF) sessions covering embedded Linux, Zephyr OS, and real-time (RT) Linux. While I won’t be attending in person, I still find it interesting to check out the schedule as we may learn more about the current status of embedded Linux. So I’ve created my own little virtual schedule out of the available talks. Tuesday, April 16 – Day 1, Embedded Open Source Summit 2024 9:05 – 9:45 – No, It’s (Still) Never Too Late to Upstream Your Legacy Linux-Based Platforms by Neil Armstrong, Linaro Nearly 7 years ago, Neil already spoke about this subject in Berlin, and it’s still very true. Do you maintain or used to maintain a Linux-based board or SoC off-tree? Then there are […]

Posted on

Intel Core Ultra 5 134U and Core Ultra 7 164U are 9W Meteor Lake processors

Intel Core Ultra 5 134U and Core Ultra 7 164U are new 12-core Meteor Lake processors with 9W PBP (Processor Base Power) and 30W Max Turbo Power (MTP) that appear to have recently been added to Intel Ark. Intel just announced Intel vPro Platform support for the Core Ultra Meteor Lake processors to make those more suitable to business customers with improved security through AI-powered Intel Threat Detection Technology, better manageability with the Intel Device Discovery comprised of cloud-based tools for managing PCs remotely, and enhanced stability thanks to Intel’s Stable IT Program aiming to validate and ensure Windows 10 and Windows 11 compatibility. But Liliputing also notes that Intel has added some 9W parts besides the existing 15W parts such as the Intel Core Ultra 5 125U or Core Ultra 7 165U, namely the Core Ultra 5 134U and Core Ultra 7 164U. They are quite similar to the […]

Posted on

Testing AI and LLM on Rockchip RK3588 using Mixtile Blade 3 SBC with 32GB RAM

We were interested in testing artificial intelligence (AI) and specifically large language models (LLM) on Rockchip RK3588 to see how the GPU and NPU could be leveraged to accelerate those and what kind of performance to expect. We had read that LLMs may be computing and memory-intensive, so we looked for a Rockchip RK3588 SBC with 32GB of RAM, and Mixtile – a company that develops hardware solutions for various applications including IoT, AI, and industrial gateways – kindly offered us a sample of their Mixtile Blade 3 pico-ITX SBC with 32 GB of RAM for this purpose. While the review focuses on using the RKNPU2 SDK with computer vision samples running on the 6 TOPS NPU, and a GPU-accelerated LLM test (since the NPU implementation is not ready yet), we also went through an unboxing to check out the hardware and a quick guide showing how to get started […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
Posted on

FOSDEM 2024 schedule – Open-source embedded, mobile, IoT, robotics, RISC-V, etc..

FOSDEM – which stands for Free and Open Source Software Developers’ European Meeting – is a free-to-participate event where thousands of developers meet in Brussels on the first week-end of February to discuss open-source software & hardware projects. FOSDEM 2024 will take place on February 3-4 with 880 speakers, 818 events, and 66 tracks. Although I won’t attend, I’ve created a virtual schedule like every year with sessions most relevant to the topics covered on CNX Software from the “Embedded, Mobile and Automotive” and “Open Hardware and CAD/CAM” devrooms, but also other devrooms including “FOSS Mobile Devices”, “ Energy: Reimagining this Ecosystem through Open Source”, “RISC-V”, and others. FOSDEM Day 1 – Saturday, February 3, 2024 10:30 – 10:55 – Screen Sharing on Raspberry Pi 5 Using VNC in Weston and Wayland with the Yocto Project and OpenEmbedded by Leon Anavi In 2023, embedded Linux developers received eagerly awaited news: […]

Posted on

GL.iNet Flint 2 router review – Part 2: WiFi 6, 2.5GbE, WireGuard performance

In the first part of the review of the GL.iNet GL-MT6000 “Flint 2” WiFi 6 router, I had a look at the package content and the hardware design with a teardown of the router, and quickly tried it out. I’ve now had more time to play with the router focusing the review on WiFi 6 and 2.5GbE performance, and checking whether of 900 Mbps Wireguard VPN claim had any truth to it. The router also supports the Tor network to anonymously browse the web, Adguard Home to get rid of unwanted ads, and Repeater mode among other features. Those all work with the Fliont 2 router, but I won’t cover those in detail here, and invite you to check out the GL.iNet Brume 2 security gateway review for Tor and Adguard Home and the GL.iNet Beryl AX review for the repeater mode test. Connecting wired and wireless clients The Flint […]

Boardcon EM3562 Rockchip RK3562 SBC with 8 analog camera inputs