1. Forum
  2. Newsgroups
  3. comp.os.linux.advocacy

  • Time For Linux Experts. Politicos Get Lost

    From L Thorpe@lt666@sixsixsix.net to comp.os.linux.advocacy,comp.os.linux.misc on Sun Dec 7 17:31:48 2025
    From Newsgroup: comp.os.linux.advocacy

    The new Linux kernel-6.18 has a new option: PERSISTENT_HUGE_ZERO_FOLIO

    The help text states:

    ==================================================================
    Enable this option to reduce the runtime refcounting overhead
    of the huge zero folio and expand the places in the kernel
    that can use huge zero folios. For instance, block I/O benefits
    from access to large folios for zeroing memory.

    With this option enabled, the huge zero folio is allocated
    once and never freed. One full huge page's worth of memory shall
    be used.

    Say Y if your system has lots of memory. Say N if you are
    memory constrained. =================================================================

    What does this mean? I have never encountered the term "folio."

    Since I have 32G memory I will enable it, but any comments will
    be most appreciated.

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Andy Burns@usenet@andyburns.uk to comp.os.linux.advocacy on Sun Dec 7 17:40:18 2025
    From Newsgroup: comp.os.linux.advocacy

    L Thorpe wrote:

    huge zero folio

    I don't stay as up to date with kernel development as I once did, but ...

    <https://lwn.net/Articles/1033058>
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From L Thorpe@lt666@sixsixsix.net to comp.os.linux.advocacy on Sun Dec 7 18:40:29 2025
    From Newsgroup: comp.os.linux.advocacy

    On Sun, 7 Dec 2025 17:40:18 +0000, Andy Burns wrote:

    L Thorpe wrote:

    huge zero folio

    I don't stay as up to date with kernel development as I once did, but ...

    <https://lwn.net/Articles/1033058>


    So mapping a huge page full of zeros during context switching is more
    efficient than just writing zeros to the page. That makes sense.

    But I wonder how the distros will handle this. There is no way to determine memory size prior to installation. As usual, the distros will default to
    an inefficient common ground.

    It's ALWAYS better to build from scratch.


    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Marc Haber@mh+usenetspam1118@zugschl.us to comp.os.linux.advocacy on Mon Dec 8 19:37:42 2025
    From Newsgroup: comp.os.linux.advocacy

    L Thorpe <lt666@sixsixsix.net> wrote:
    What does this mean? I have never encountered the term "folio."

    Since I have 32G memory I will enable it, but any comments will
    be most appreciated.

    Why are you rolling your own kernel if you don't have the knowledge to
    research such things yourself? The people doing Kernels in the
    distributions are expertes. Why do you distrust them? And why do you
    not distrust the people building your libc, your toolchain, your perl
    and python?

    Greetings
    Marc
    -- ---------------------------------------------------------------------------- Marc Haber | " Questions are the | Mailadresse im Header Rhein-Neckar, DE | Beginning of Wisdom " |
    Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fon: *49 6224 1600402
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Lester Thorpe@lt@gnu.rocks to comp.os.linux.advocacy on Mon Dec 8 20:26:31 2025
    From Newsgroup: comp.os.linux.advocacy

    On Mon, 08 Dec 2025 19:37:42 +0100, Marc Haber wrote:


    Why are you rolling your own kernel if you don't have the knowledge to research such things yourself?


    Because "rolling" is a learning process and that's something which
    you have obviously abandoned.


    The people doing Kernels in the
    distributions are expertes.


    Says who? Says you?

    But I don't use a distribution and thus I must build my own
    kernel.



    Why do you distrust them?


    It is not a question of trust. It is the fact that distros build
    only for the "lowest common denominator." Thus, all distros are
    un-optimized, inefficient, crippled



    And why do you
    not distrust the people building your libc, your toolchain, your perl
    and python?


    I don't. I build glibc, the toolchain, Perl, and Python all by
    myself.

    You should try it. But you can't, and that's why you defend the disrtos
    in an attempt to defend only yourself.
    --
    Gentoo: the only road to GNU/Linux freedom and perfection.
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Joel W. Crump@joelcrump@gmail.com to comp.os.linux.advocacy,comp.os.linux.misc on Mon Dec 8 15:44:30 2025
    From Newsgroup: comp.os.linux.advocacy

    On 12/8/25 3:26 PM, Lester Thorpe wrote:

    Gentoo: the only road to GNU/Linux freedom and perfection.


    Where perfection aspires to be so stripped of essential material that
    even limbs are too detailed, give me a stump for a hand, says Gentoo
    compared to Mint or Debian, give me powerlessness in the name of idiotic vanity!
    --
    Joel W. Crump
    --- Synchronet 3.21a-Linux NewsLink 1.2