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Linux Kernel and Linux Foundation Leftovers

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  • Improve memset
    
    since the merge window is closing in and y'all are on a conference, I
    thought I should take another stab at it. It being something which Ingo,
    Linus and Peter have suggested in the past at least once.
    
  • An Improved Linux MEMSET Is Being Tackled For Possibly Better Performance

    Borislav Petkov has taken to improve the Linux kernel's memset function with it being an area previously criticzed by Linus Torvalds and other prominent developers.

    Petkov this week published his initial patch for better optimizing the memset function that is used for filling memory with a constant byte.

  • Kernel Address Space Isolation Still Baking To Limit Data Leaks From Foreshadow & Co

    In addition to the work being led by DigitalOcean on core scheduling to make Hyper Threading safer in light of security vulnerabilities, IBM and Oracle engineers continue working on Kernel Address Space Isolation to help prevent data leaks during attacks.

    Complementing the "Core Scheduling" work, Kernel Address Space Isolation was also talked about at this week's Linux Plumbers Conference in Lisbon, Portugal. The address space isolation work for the kernel was RFC'ed a few months ago as a feature to prevent leaking sensitive data during attacks like L1 Terminal Fault and MDS. The focus on this Kernel ASI is for pairing with hypervisors like KVM as well as being a generic address space isolation framework.

  • The Linux Kernel Is Preparing To Enable 5-Level Paging By Default

    While Intel CPUs aren't shipping with 5-level paging support, they are expected to be soon and distribution kernels are preparing to enable the kernel's functionality for this feature to extend the addressable memory supported. With that, the mainline kernel is also looking at flipping on 5-level paging by default for its default kernel configuration.

    Intel's Linux developers have been working for several years on the 5-level paging support for increasing the virtual/physical address space for supporting large servers with vast amounts of RAM. The 5-level paging increases the virtual address space from 256 TiB to 128 PiB and the physical address space from 64 TiB to 4 PiB. Intel's 5-level paging works by extending the size of virtual addresses to 57 bits from 48 bits.

  • Interview with the Cloud Foundry Foundation CTO

    In this interview, Chip Childers, the CTO of the Cloud Foundry Foundation talks about some hot topics.

  • Research Shows Open Source Program Offices Improve Software Practices

    Using open source software is commonplace, with only a minority of companies preferring a proprietary-first software policy. Proponents of free and open source software (FOSS) have moved to the next phases of open source adoption, widening FOSS usage within the enterprise as well as gaining the “digital transformation” benefits associated with open source and cloud native best practices.

    Companies, as well as FOSS advocates, are determining the best ways to promote these business goals, while at the same time keeping alive the spirit and ethos of the non-commercial communities that have embodied the open source movement for years.

  • Linux Foundation Survey Proves Open-Source Offices Work Better

More Cloud Foundry Interviews

Abby Kearns

More Kubernetes (or Similar) Interviews

Abby Kearns Interview At Cloud Foundry Summit, 2019

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Today in Techrights

Regain your focus: Manage your push notifications in Linux

I have been working in a professional IT environment of a large organization for over 20 years and during that time I have seen a lot of different visions and opinions on individual and collective productivity. What I have noticed in all those years is how many people think that you are a bad-ass professional if you can do an insane amount of tasks simultaneously. But let’s be honest, doing many things at the same time is not the same as doing things right. But gradually, cracks start to appear in the common opinion that it is always good to multitask. More and more studies show that multitasking undermines focus. And focus is necessary to not waste valuable time due to finding back your concentration as a result of an attention switch. Focus makes sure that you can deliver some high-quality results instead of just many, but probably mediocre results. In this article I want to delve deeper into the backgrounds behind focus, productivity, the impact of notifications on your productivity, and the things that you should consider in allowing and managing your push notifications under Linux. [...] In the introduction I already indicated that nowadays we are increasingly questioning the importance of being good at multitasking, and that perhaps single-tasking is much better. There is, however, a nuance, since multitasking can be fine in itself, as long as all the tasks you want to perform don’t require an equal amount of brain activity and attention. For example, if you like to listen to music during your study time, it is better to listen to instrumental music instead of music in which lyrics play the leading role. With spoken text, you unconsciously interpret and shift your attention from your main task to the music, so you constantly need to refocus back again to your main task. But if you still want to listen to music with vocals, then it is advisable to only listen to music that you have known for years instead of listening to songs with song texts that you have never heard before. New texts subconsciously require more of your attention than texts that you have already known for years. Multitasking is therefore only great when it comes to a combination of simple activities alongside your main task, such as making simple sketches, creating doodles, playing with an elastic band, or chewing your pencil, during a colleague’s presentation or while reading an advice report or listening to a teacher. These doodles and fiddling with a piece of rubber do not require brain effort, so you can keep all your real focus on the main task. But constantly looking at your messages on your mobile phone while listening to a presentation of your colleague, will lead to a loss of focus and loss of information, and of course this is not the nicest and most respectful thing to do in front of a presenting colleague. Read more

Android Leftovers

Access an independent, uncensored version of Planet Debian

Please update your bookmarks and RSS subscriptions to use the new links / feeds below. A number of differences of opinion have emerged in the Debian Community recently. People have expressed concern about blogs silently being removed from Planet Debian and other Planet sites in the free software universe. These actions hide the great work that some Debian Developers are doing and undermines our mutual commitment to transparency in the Debian Social Contract. Read more