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Linux Kernel and Graphics Leftovers

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  • Oracle Releases VirtualBox 6.1.6 with Support for Linux Kernel 5.6

    Oracle released VirtualBox 6.1.6 as the first version of its open-source and cross-platform virtualization software to support the recently released Linux 5.6 kernel series.

    Linux kernel 5.6 arrived at the end of March 2020 as the first release to ship with the WireGuard VPN solution built-in, providing next-generation VPN connections on Linux-powered machines.

    Linux 5.6 also added support for the USB4 implementation, a new CPU idle cooling thermal driver, AMD Pollock support, a new Zonefs file system for zoned block devices, and initial support for Amazon Echo smart speakers.

  • The Linux Kernel Prepares For Larger AMD CPU Microcode Updates

    Future AMD CPUs (more than likely, Zen 3) will be bearing larger CPU microcode sizes, resulting in the Linux kernel needing a change to load them.

    Currently the AMD Linux CPU microcode handler has a static upper limit of the page size, which is generally 4K. But in preparation for "future AMD CPUs" that will exceed that size, that upper limit is being bumped.

    With a change now pending as part of the x86/urgent work, that upper limit is being bumped to a factor of three times the page size. In other words, up to 12K microcode update size.

  • Linux Developers Are Once Again Trying To Enable Intel FSGSBASE For Better Performance

    For years there have been patches floating around for helping the performance of context switching sensitive workloads going back to "Ivy Bridge" CPUs but without ever crossing the finish line to get this "FSGSBASE" support merged. But now in 2020 it's once again being attempted.

    These patches are about enabling FSGSBASE instruction usage for allowing reading and writing to the FS/GS BASE from any privilege level. There are performance benefits thanks to skipping a system call and MSR write and also register savings.

  • Open Source software releases: Q1 2020 recap

    Long before COVID-19 took hold and made remote working the new reality for many, individuals and corporations from all parts of the world have worked together, collaborating online to drive technological advancements. Open Source software development thrives on remote collaboration, and continues to do so in 2020, with multiple projects announcing releases in the first quarter.

    As some of most motivated and active Open Source contributors and maintainers around the world, Collabora's team of engineers and developers took part in a number of these releases, both on their own time and while working on client projects.

  • Radeon GPU Analyzer 2.3.1 Released

    Radeon GPU Analyzer 2.3.1 is now available as the GPUOpen utility for analyzing Vulkan / DirectX / OpenGL / OpenCL code across platforms for performance profiling and other purposes.

    The Radeon GPU Analyzer 2.3.1 release has various performance improvements itself, a number of bug fixes, better support for its legacy OpenCL mode, Vulkan launcher enhancements, and other minor work for this open-source Radeon GPU debugging/profiling utility.

Virtualbox 6.1.6 Released with Kernel 5.6 Support

VirtualBox 6.1.6

  • VirtualBox 6.1.6

    VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.

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Fedora Leftovers

  • Join Us: Design Team Sessions Live!

    Just before the Christmas holidays, you may have participated in one of three impromptu live design sessions / video chats I held. In the first session, a group of Fedorans did a critique on one of the Fedora 34 wallpaper mockups. In the second session, another group of us did a collaborative design session for a custom Fedora Discourse theme. In the last session, we did a live digital painting session. 

  • Fedora 34 Planning For Better Font Rendering By Enabling HarfBuzz In FreeType

    Fedora plans to flip on the HarfBuzz text shaping engine support with the FreeType font rasterization engine. In doing so, this should yield improved hinting of glyphs especially with languages that need more complicated text shaping. FreeType has supported HarfBuzz for more than a half-decade (after HarfBuzz was originally was born out of that project) while Fedora hasn't enabled its usage until the planned change for Fedora 34 this spring. 

  • Fedora 32 : Can be better? part 012.

    Pidgin is a chat program that lets you log in to accounts on multiple chat networks simultaneously.  Pidgin can be installed on multiple operating systems and platforms.  Pidgin is compatible with the following chat networks out of the box: I.R.C., Jabber/XMPP, Bonjour, Gadu-Gadu, IRC, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, and Zephyr.

Android Leftovers