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Kernel: Linux 5.4 and Intel Work

Filed under
Graphics/Benchmarks
Linux
  • F2FS Will Have Faster Case-Insensitive Lookups With Linux 5.4

    F2FS has done a good job following EXT4 that spearheaded this modern case-insensitive directory/file feature that's optional and opt-in on a per directory basis. Like with F2FS' other following of EXT4 around this feature, it's now ported the look-up optimization from 5.3 to its driver. On the EXT4 side it has resulted in around 30% faster look-ups on large directories by introducing a temporary cache to avoid repeated case-folding.

  • How Intel's Clear Linux Team Cut The Kernel Boot Time From 3 Seconds To 300 ms

    Intel engineer Feng Tang spoke at this week's Linux Plumbers Conference in Lisbon, Portugal on how the Clear Linux team managed to boot their kernel faster. They started out with around a three second kernel boot time but cut it down to just 300 ms.

    Among the optimizations carried out to really speed-up their boot time were ensuring more asynchronous driver probing, only initializing a small amount of RAM at start and then after booted hot-plug the rest of it in parallel via systemd, optimized root file-system mounting, disabling unnecessary kernel modules, and similar approaches.

  • Intel's Gallium3D Linux Driver Now Exposes OpenGL 4.6

    But unlike the i965 driver with OpenGL 4.6 support back-ported to Mesa 19.2, for the Intel Gallium3D driver it isn't marked for back-porting so is likely a feature for next quarter's Mesa 19.3 with that being the version in development on Git master. The Intel Gallium3D support comes after all the heavy-lifting done for getting the SPIR-V extensions in place for the common Intel graphics code over the past two years. This Intel Gallium3D driver is now the second in Mesa supporting GL 4.6 and the first Gallium3D driver to do so.

More in Tux Machines

The 10 Best Raspberry Pi Stores Available in the Market

Raspberry Pi is the most discussed single-board computer nowadays, which is highly applied in the development of IoT. It was made to make computing more accessible, and we can say it succeeded quite thoroughly. Now, with the emerging importance of the Pi, more and more people are getting interested in buying it and looking for the finest and authentic Raspberry Pi Stores around them. If you are one of them, let’s say you have reached the best place to get your answer! [...] The Pi Hut’s Raspberry Pi superstore started its journey in 2012 with selling SD cards only. Since then, they have been upgrading gradually and finally reached this point where they are regarded as #1 Raspberry Pi Store. You will find all the latest and finest Raspberry Pi accessories and add-ons. Besides their excellent quality products, they offer fast and caring customer service. Moreover, their website provides a Raspberry Pi compatibility checker on each of the product’s page that allows you to know which product fit well with which Pi model. Read more

today's howtos

Security Leftovers

  • Security updates for Tuesday

    Security updates have been issued by Mageia (mysql-connector-java), openSUSE (chromium, curl, libqt4, and singularity), Red Hat (bash and kernel), SUSE (python-pip and python3), and Ubuntu (busybox, ceph, freeimage, libofx, libpam-tacplus, linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon, linux, linux-azure, linux-gcp, linux-oracle, novnc, and tnef).

  • Microsoft secures backend server that leaked Bing data [Ed: "No personal user data was leaked in the incident," says ZDNet about a Microsoft security incident, just because the liars from Microsoft said so. Did ZDNet check to verify? No. Reprinting lies.]

    Microsoft has suffered a rare cyber-security lapse earlier this month when the company's IT staff accidentally left one of Bing's backend servers exposed online.

  • No security audit done on Chinese smartphones- IT ministry

    Ministry of Electronics and Information Technology, Government of India, today clarified that it has not conducted any sort of study to check if Chinese-made smartphones used in India are sending sensitive data to their country of origin. “Ministry of Electronics and Information Technology (MeitY) has not conducted any such study,” said Minister of State Sanjay Dhotre, in response to a question by Rajya Sabha MP Vivek Tankha. [...] While the Gnu Public License, which governs the Linux Operating System, requires anyone who makes changes to the code to disclose the changes publicly, such a requirement is not there for BSD, and therefore, for Android. Unlike GPL, the BSD license allows any company to take the code, alter it in any way they want, and not disclose the changes to anyone.

  • No, Moving Your SSH Port Isn’t Security by Obscurity

    In short, you just made it harder for the enemy to successfully attack you by giving them a resource problem. Sure, they can check under every rock in Central Park and eventually find the package, but you’ll be done with the mission by then.

    Obscurity doesn’t apply if people know the mechanism you’re using and they simply have a resource problem. Having a known defense but a hidden key is a well-established part of good security, and it has been for millennia.

GNU/Linux-Compatible Devices

  • Raspberry Pi turns retro radio into interactive storyteller
  • Microchip graphics toolkit for Linux-on-Arm

    Called Ensemble Graphics Toolkit, it is a no-cost and royalty-fre open-source C++ suite based on the permissive Apache 2.0 open-source license. It works with the company’s chips, system-in-package and system-on-module products. “By taking advantage of underlying hardware acceleration, including graphics controllers and video decoders when available, the toolkit provides a high-performance user experience on low and mid-range graphical displays up to XGA [1,024 x 768] resolution,” according to the company. “Ensemble Graphics Toolkit and Linux can be optimised for boot times of under three seconds from cold reset that is required for applications such as automotive dashboard clusters.”

  • Intel Rocket Lake and Xe DG1 GPU now have Linux support

    Intel has updated its Compute Runtime to support its upcoming Rocket Lake desktop processors and Intel DG1 graphics based on its Xe GPU architecture. Overall, this can be seen as a sign that things are moving at a steady pace with Intel’s 11th generation core CPUs and discrete graphics.

  • Work smarter and harder!

    We’re decided to focus on how an open source smart home office looks and runs with a bit of help from the Raspberry Pi. From setting up a low-overhead video conferencing system to collaborative document editing and sharing, to more mundane smart-home control options, this is what happens when we leave Jonni to his own devices at home for six months! Hopefully you’ll find something that will be of genuine use around your new working-from-home home office, or at least something for which use a spare Pi!