optimization News - Page 2 of 12 - CNX Software

January 8, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linux 6.7 release – Main changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds has just announced the release of Linux 6.7, following Linux 6.6 LTS a little over two months ago: So we had a little bit more going on last week compared to the holiday week before that, but certainly not enough to make me think we’d want to delay this any further. End result: 6.7 is (in number of commits: over 17k non-merge commits, with 1k+ merges) one of the largest kernel releases we’ve ever had, but the extra rc8 week was purely due to timing with the holidays, not about any difficulties with the larger release. The main changes this last week were a few DRM updates (mainly fixes for new hw enablement in this version – both amd and nouveau), some more bcachefs fixes (and bcachefs is obviously new to 6.7 and one of the reasons for the large number of commits), and then a few random […]

October 6, 2023October 7, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Android 14 released, source code hits AOSP

Google has just released Android 14 for supported devices such as Google Pixel phones and pushed the source code to AOSP (the Android Open-Source Project). Most of the changes to the fourteenth version of the Android operating system were introduced with the first Android 14 developer preview – released in February 2023 – which included performance improvements, better privacy and security, and additional user-side customization options. Some of the new features unveiled since the first Android 14 developer preview include: AI-generated wallpapers using text-to-image diffusion models to help users easily create unique wallpapers HDR images with Ultra HDR (Android 13 already supported HDR videos) Built-in Health Connect support to let people track their fitness, health, and wellness levels across apps in a secure way respecting privacy. Android 14 encourages users to set a six-digit PIN (or longer) to improve security. Improved accessibility with vision-and hearing-inclusive features such as an enhanced […]

April 29, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

MicroPython 1.20 released with Raspberry Pi Pico W support, mip package manager, smaller footprint

Damien George has recently announced the release of MicroPython 1.20 with support for the Raspberry Pi Pico W board., a new lightweight package manager called mip, a smaller footprint thanks to the use of compressed type structs, and many other changes. mip package manager The new mip package manager uses a custom protocol optimized for embedded systems to query and install packages, and intends to replace upip for installing packages from micropython-lib or any URL. Mip can be run directly on a device, as long as it has network connectivity, or via mpremote from a host computer. Damien explains all pure-Python drivers have been moved from the micropython repository to the micropython-lib repository as part of the change in order to make it easier to install the packages needed for a given project. MicroPython is getting smaller The MicroPython binary size has been reduced by many kilobytes for all ports […]

March 5, 2023May 8, 2023 by Ian W MORRISON (Linuxium) - 13 Comments

Beelink SER6 Pro mini PC review – Windows 11, Ubuntu 22.04, and USB4

Beelink upgraded their earlier SER6, which used an AMD Ryzen 5 6600H processor with integrated AMD Radeon 660M graphics, and released the SER6 Pro which has a faster AMD Ryzen 7 6800H processor with much more powerful integrated AMD Radeon 680M graphics. Beelink kindly sent a SER6 Pro unit for review however since receiving the mini PC, Beelink have ‘refreshed’ the processor to use an AMD Ryzen 7 7735H also with AMD Radeon 680M graphics, and called it the SER6 Pro Refresh. As a result, this review looks at Windows performance which should be indicative for both versions, together with a quick look at running Ubuntu and also a more detailed look at the USB4 port which is a new inclusion to Beelink’s mini PCs. Update: you may be interested in the review of the Beelink SER6 Pro 7735HS – in Windows 11 only – as we’ve also received it […]

February 9, 2023 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Android 14 developer preview brings enhancements to performance, privacy, security, and user customization

Google has just released the first developer preview of Android 14 with productivity improvements for developers, as well as enhancements to performance, privacy, security, and user customization. Android 14 aims to work better across devices and form factors with improved support for tablets and foldables and adds window size classes, sliding pane layout, Activity embedding, and box with constraints, etc… To help developers, the company also published “Get started with large screens” documentation and released a Cross-device SDK preview. The new version of the mobile operating systems also further streamlines background work to optimize system health and battery life and provide a better end-user experience. This is achieved through updates to JobScheduler and Foreground Services, optimized broadcasts most of which are internal to Android 14, and a new “Exact alarms” permission since it consumes more resources. Android 14 also introduced some user-facing changes with bigger fonts up to 200% with […]

December 19, 2022December 19, 2022 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Linux 6.2 exFAT update to improve performance when creating files and directories

The exFAT file system is about to get faster in Linux 6.2, at least when creating files and directories, with the performance boost especially noticeable on low-end processors. Microsoft released the exFAT specification and announced Linux support in August 2019, which was followed by a new exFAT implementation in Linux 5.7 (June 2020) from Samsung. But people are still working on improving exFAT Linux support, and Yuezhang Mo, an engineer at Sony, committed a patchset for Linux 6.2 that reduces repeated traversal of directory entries to boost the performance of exFAT: After traversing all directory entries, hint the empty directory entry no matter whether or not there are enough empty directory entries. After this commit, hint the empty directory entries like this: 1. Hint the deleted directory entries if enough; 2. Hint the deleted and unused directory entries which at the end of the cluster chain no matter whether enough […]

October 31, 2022 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

TinyML-CAM pipeline enables 80 FPS image recognition on ESP32 using just 1 KB RAM

TinyML-CAM image recognition microcontroller boards

The challenge with TinyML is to extract the maximum performance/efficiency at the lowest footprint for AI workloads on microcontroller-class hardware. The TinyML-CAM pipeline, developed by a team of machine learning researchers in Europe, demonstrates what’s possible to achieve on relatively low-end hardware with a camera. Most specifically, they managed to reach over 80 FPS image recognition on the sub-$10 ESP32-CAM board with the open-source TinyML-CAM pipeline taking just about 1KB of RAM. It should work on other MCU boards with a camera, and training does not seem complex since we are told it takes around 30 minutes to implement a customized task. The researchers note that solutions like TensorFlow Lite for Microcontrollers and Edge Impulse already enable the execution of ML workloads, onMCU boards, using Neural Networks (NNs). However, those usually take quite a lot of memory, between 50 and 500 kB of RAM, and take 100 to 600 ms […]

May 23, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 is out! Linus Torvalds has just announced the release on lkml: No unexpected nasty surprises this last week, so here we go with the 5.18 release right on schedule. That obviously means that the merge window for 5.19 will open tomorrow, and I already have a few pull requests pending. Thank you everybody. I’d still like people to run boring old plain 5.18 just to check, before we start with the excitement of all the new features for the merge window. The full shortlog for the last week is below, and nothing really odd stands out. The diffstat looks a bit funny – unusually we have parsic architecture patches being a big part of it due to some last-minute cache flushing fixes, but that is probably more indicative of everything else being pretty small. So outside of the parisc fixes, there’s random driver updates (mellanox mlx5 stands out, […]