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CentOS 8.x CentOS 8 released

Discussion in 'CentOS, Redhat & Oracle Linux News' started by buik, Sep 23, 2019.

  1. BamaStangGuy

    BamaStangGuy Active Member

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    Excited to test Centos 8 and CentminMod.
     
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  2. buik

    buik Well-Known Member

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  3. buik

    buik Well-Known Member

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    Stripped to the bone EL8 may use less memory (74-78 mb as written before).

    Yum / DNF is quite memory hungry and can't be stripped, but only tweaked.

    Result on a 256MB test virtual machine.
    Can't allocate memory. Or equivalent.
    So pay attention.
     
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  4. eva2000

    eva2000 Administrator Staff Member

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    yeah YUM/DNF can potentially use alot of memory and is the first one to complain or breakdown if CentOS/RedHat doesn't have enough memory.
     
  5. buik

    buik Well-Known Member

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    DNF, Yum, PackageKit or whatever this cohesion nowadays also be called, is one of the few thing I stubbornly don't like it about EL.

    Reviewing the documentation, DNF is largely based on improving speed plus adding tons of new features.

    My ideal package manager installs and updates packages and nothing more.

    I don't need 3 managers who actually do the same, I don't need a complex database behind or the use of state-oft-the art solvers, libsolvers etc.

    For central managing servers there are other solutions.

    Why should it be faster? You don't update the system that much.
    I don't care if updating mainframes of 400k per unit updates in 5 secs or 15 secs.
    It is all about stability.

    Ironically, DNF also simply means Did not finish:)
     
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  6. eva2000

    eva2000 Administrator Staff Member

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    Yeah while CentOS 8's YUM/DNF seems to use more resources, it's definitely alot faster than YUM in CentO S7.

    More on CentOS 8 Stream Transforming the development experience within CentOS
    So does that mean we can take CentOS 8 Stream RPMs and install on CentOS 8 ? i.e. newer linux kernels ?
     
  7. buik

    buik Well-Known Member

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    No. Theoretically everything is possible but it is not the intention.
    It will be a Fedora +, RHEL extended beta, or what ever you want to call it filling the gap Fedora leaves (6 months release period), and RHEL (4+ years release period).

    The rest is PR talk.

    It does have some of the Windows Insiders program.
    Working together with a large group of free testers from A to a production release.

    You get the opportunity to test the latest software (what will become RHEL), they get free feedback.
     
  8. eva2000

    eva2000 Administrator Staff Member

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    I guess.

    Talking about CentOS 8 Stream. Wow Phoronix benchmarked CentOS 8 stream against Windows and Ubuntu and other OSes and came 1st place in most of them !

    Windows 10 vs. Eight Linux Distributions In Various "Creator" Workloads On An Intel Core i9 - Phoronix

    - CentOS Stream
    - Clear Linux 31140
    - Debian 10.1
    - Fedora Workstation 30
    - Manjaro Linux 18.1
    - openSUSE Tumbleweed
    - Ubuntu 19.04
    - Ubuntu 19.10 20190930
     
  9. buik

    buik Well-Known Member

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    Personal. Always look at the benchmarks with great admiration.

    What does it matter how once OS performs over another?
    After all, you choose only one.

    Are the performances disappointing? Then you screw a few extra systems to your node? Hardware costs almost nothing nowadays.
     
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  10. eva2000

    eva2000 Administrator Staff Member

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    research and comparative analysis - knowing what makes one OS perform better out of the box than another etc. For instance from phoronix's extensive benchmarks for GCC and Clang compiler performance on other OSes which have newer GCC defaults, I concluded Centmin Mod's Nginx and PHP-FPM builds needed to be using newer GCC compilers than what CentOS 7's default GCC 4.8.5 can provide. Hence, Centmin Mod's Nginx and PHP-FPM are built with GCC 7/8/9 compilers and support for GCC 10 is in development too :) I also build most of my own custom RPMs and source compilation for software I privately use for myself and my paying clients on GCC 8/9 as well :D

    True. Though squeezing out 5-40% more free performance just from how software is built and compiled or what version of software or OSes you use, is always nice too :)
     
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