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melroy

@ melroy @kbin.melroy.org

Posts
5
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730
Joined
3 yr. ago

  • YouTube has found a new way to load ads | AdGuard Blog

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  • now I need to move away from Telegram & YouTube at the same time.. oef

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  • I also don't trust Signal.. And I won't gonna switch a 4th time. I might as well switch to Matrix chat now.

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  • OK bye bye Telgram. Now I need to migrate everything again again again.

  • United Nations wants to treat AI with same urgency as climate change

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  • Problem resolved itself.. ChatGPT is down.

  • Microsoft releases a new Windows app called Windows App for running Windows apps

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    1. Crash Bandicoot Apps
    2. Titanic Apps
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  • I know right..

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  • Matrix chat is not :)

  • Why is UI design backsliding?

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  • Microsoft was pushing all their designs to this new ribbon UI design, across their apps. I dunno why they thought that was a good idea. But I left Windows for years already. LibreOffice is just the old school layout, and if you really really want you could optionally also ribbons in LibreOffice.

  • 20 years later, real-time Linux makes it to the kernel - really

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  • I got this back from ChatGPT (most likely false info!):

    The compromise for integrating PREEMPT_RT into the Linux mainline kernel, including the handling of printk, required several changes and concessions over time. These compromises made it possible to finally integrate real-time (RT) capabilities while maintaining the overall philosophy and structure of the Linux kernel. Key Compromises Made:

    1. Soft-Real-Time Focus:

      One of the biggest compromises was accepting that Linux would focus on soft real-time capabilities instead of hard real-time guarantees. This was crucial for widespread acceptance in the mainline kernel, as hard real-time guarantees were too difficult to meet without significant changes that would have disrupted the kernel's general-purpose use cases. PREEMPT_RT was designed to offer deterministic behavior with reduced latencies, but it doesn't provide the strict guarantees of traditional hard real-time systems like VxWorks or QNX.
    2. printk Latency Handling:

      Non-blocking printk: One compromise involved updating printk to avoid long blocking during logging operations. It was changed to be more asynchronous, reducing the impact on real-time scheduling. Deferred printing: Another approach was to defer the actual printing of log messages to avoid introducing large latencies in time-critical paths. The goal was to prevent printk from stalling critical tasks, especially those with real-time priority.
    3. Voluntary Preemption Points:

      Voluntary preemption was introduced, allowing kernel code paths to insert preemption points that allow the scheduler to preempt running tasks, improving latency. However, this does not guarantee immediate preemption, which is another compromise compared to true hard real-time systems. These preemption points had to be carefully placed to balance performance and responsiveness without destabilizing the general-purpose kernel.
    4. Threaded Interrupts:

      Another significant compromise was the conversion of hard IRQs (interrupts) into threaded interrupts. While this allows real-time tasks to take precedence over hardware interrupts (which would traditionally have a higher priority), it involves some overhead and performance trade-offs. Not all interrupts could be threaded easily, and this change required reworking many drivers to ensure that they were compatible with threaded interrupts.
    5. Preemptible Spinlocks:

      Spinlocks in the kernel traditionally prevent preemption. To enable real-time preemption, spinlocks were made preemptible, allowing real-time tasks to preempt even code holding spinlocks. This change wasn't trivial, as it involved significant reworking of kernel locking mechanisms to ensure the system remained stable and avoided deadlocks, without degrading performance in non-real-time scenarios.

  • 20 years later, real-time Linux makes it to the kernel - really

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  • And is this already where it goes wrong with people trying to use "AI"..

  • 20 years later, real-time Linux makes it to the kernel - really

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  • KIDDING! aaaaaaaaaaaaaah

  • 20 years later, real-time Linux makes it to the kernel - really

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  • Let's ask ChatGPT! ahhaah just kidding.. kidding..

  • 20 years later, real-time Linux makes it to the kernel - really

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  • I do understand why. Due to all the heated discussions with Rust in Linux, it does makes a lot of sense to rebuild a kernel in Rust from scratch. However, it will take a long time to get on the same level of Linux (read: 30+ years).

  • 20 years later, real-time Linux makes it to the kernel - really

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  • after much work, many heated discussions, and several rejected proposals, a compromise was reached earlier this year.

    So what was the compromise with print_k??

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  • No I didn't overrated. Users where opt-in in ad tracking by default after that Firefox update. Users were not notified about this. And "privacy-preserving ad measurement" is misleading on purpose, I don't understand why you would fall for that too.

    This all happened when Mozilla bought an ad company called Anonym. I'm fully done with Firefox now. I moved to a Firefox fork.

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  • After Mozilla introduced "Allow web sites to perform privacy-preserving ad measurement", I was out for good now. I moved to forks like Floorp, LibreWolf or Waterfox.

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  • This Windows 11 Start menu change is now coming to Windows 10

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  • I myself have much success with Linux Mint (eg. Cinnamon edition). I love Mint.. It just works.. It's stable and I can focus on doing my work under Linux, which is software development mostly. But I just don't have the time to debug my distro, fixing things and compile stuff myself. I already need to manage multiple PCs & servers running Linux. Hence I went with Linux Mint on both my desktop PCs as well as my laptop I'm currently typing on.

    I tested things like: bluetooth, wifi, speedtest, webcam, shortcuts (eg. sound buttons or brightness buttons at the top), trackpad, multiple finger gestures. The only thing I didn't yet test is the finger print reader, if it has one?..

    Framework laptops can also come with many expansion cards, like HDMI, DisplayPort, network (LAN) port, USB a, USB c, and so much more. I also tested those in-/outputs. Thus far everything seem to work nicely. I did switch the wifi card, I replaced the stock wifi card with a Intel AX210, which seems to work much better under Linux in terms of not only speed, but also signal strength. Let me know if you want to know more..