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Kernel: FUTEX2, Linux Kernel Runtime Guard (LKRG), RCU and Zink

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Graphics/Benchmarks
Linux

  • Updated FUTEX2 System Call Patches Posted For Helping Wine/Proton, Other Use-Cases - Phoronix

    It's been several months since the last round of FUTEX2 patches for this system call to address the shortcomings of the current FUTEX system call. FUTEX2, which is designed in part with Wine/Proton in mind for better matching Windows semantics, has now seen a third iteration of the patches. 

    FUTEX2 aims to better match the behavior of Windows and can wait on multiple futexes, among other improvements over the original system call. It's important for Wine/Proton and ultimately Steam Play for enjoying Windows games on Linux with optimal performance and reliability. 

  • Linux Kernel Runtime Guard 0.9.1 Is Released - LinuxReviews

    The Linux Kernel Runtime Guard (LKRG) is a Linux kernel security module developed by Openwall for security enthusiasts, Internet-facing production servers and hosting providers that provides additional run-time integrity and security checks for the Linux kernel. The latest version adds support for CONFIG_HAVE_STATIC_CALL on Linux 5.10+ and a fix for a false positive bug on machines with SELinux enabled. make install no longer enables it by default. There is, instead, a message explaining how to enable it using the systemd service file it provides.

  • Stupid RCU Tricks: A tour through rcutorture - Paul E. McKenney's Journal — LiveJournal

    Although Linux-kernel RCU gets most of the attention, without rcutorture, RCU would not be what it is today. To see this, note that the old saying “If it ain't tested, it don't work!” is if anything more valid today than it was back then. After all, software has not gotten any simpler, workloads have not become less demanding, and systems have not grown smaller, except in terms of physical size. That said, the decrease in size has been truly impressive. Back when Jack and I invented RCU, the hardware contained in my laptop would have filled no fewer than fifteen standard racks, and that ignores the hardware that simply was not available back then, and also ignores the reliability issues that would have resulted from such an imposing agglomeration of hardware.

  • Farewell Old Friend
  • Zink OpenGL-On-Vulkan Now Correctly Rendering... Glxgears - Phoronix

    While Zink implements OpenGL 4 and is running an increasing number of games with good performance, one of the simple "demos" it hasn't been able to render correctly in recent years has been glxgears. But that milestone is now crossed once again with the latest Mesa code.

Collabora take another shot at futex2 Linux Kernel syscalls...

  • Collabora take another shot at futex2 Linux Kernel syscalls to help Linux gaming

    Collabora developers have been working for some time on back-end Linux Kernel improvements to help Linux gaming, and Wine / Steam Play Proton - the latest patches have now been posted for futex2. Available to read about on the Linux Kernel Mailing List, Collabora developer André Almeida introduced the latest set.

    What's all this about then? Well, the original futex (more info) introduced in 2003 has certain drawbacks. Developers have been trying to improve it but it's proven difficult to get new code and features added in given the legacy of it. Some of the new features just don't fit into the existing futex, and it can be slow - so they're working on an new version.

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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