OpenCL benchmarks on Windows 10 (build 1803) vs Ubuntu Linux 18.04LTS.

Discussion in 'Linux Compatibility and Software' started by Dennismungai, Jun 8, 2018.

  1. Vasudev

    Vasudev Notebook Nobel Laureate

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    It didn't work. I'm stuck at NV and Neo doesn't work in Intel or NV only GPU modes using prime-select.
     
  2. Dennismungai

    Dennismungai Notebook Evangelist

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    Can you retest the build step(s) on Ubuntu 18.04LTS?
     
  3. Vasudev

    Vasudev Notebook Nobel Laureate

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    But intel did test them with ubuntu 16 as test setup. I think I'm missing something.
    I will be rebuilding it tomorrow from scratch. Yesterday after upgrading cmake using pip did make installation faster. I feel cmake didn't make necessary changes since it was very old.
    I'll let you know.
     
  4. Dennismungai

    Dennismungai Notebook Evangelist

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    Alright, test and report back on your findings.
     
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  5. Hossbando

    Hossbando Notebook Enthusiast

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    You should use MATE or LXDE instead of whatever the heck Ubuntu packages by default if you're doing any type of rendering tests. If you're looking for raw power instead of bells and whistles you'll notice a difference. MATE gives me an easy additional 10-15fps (probably 10% speed difference, based on feel) vs Cinnamon in most OpenGL games on older hardware. I can't imagine the default ubuntu DE is really that quick.

    Edit: Also going to chime in that in my experience 18.04 can feel like molasses compared to the 17 releases. Tons of broken dependencies as well.
     
  6. Dennismungai

    Dennismungai Notebook Evangelist

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    Their new netplan.io backend for networking interfaces is utter garbage.

    And for some reason, installing the Nvidia R396+ drivers does not automatically fetch the dependencies for it, such as the kernel module source, bricking apt.

    I'll definitely try out a mate desktop install and compare performance (in games).

    This is the phoronix test profile that I'll use for that:


    phoronix-test-suite default-benchmark openarena xonotic tesseract gputest unigine-valley

    As recommended by this PPA.

    And for the mate desktop:

    apt install ubuntu-mate-desktop

    And the default display manager for this batch of tests will be gdm3.

    When done, I'll switch over to lightdm and retest.

    To switch, simply reconfigure the default display manager:

    dpkg-reconfigure gdm3

    And in the prompt, select the preferred display manager. Reboot to apply changes.

    Here comes:

    1. For the Clevo PDM2-G (forgive the typo in the test file): https://openbenchmarking.org/result/1806261-KH-1806265KH55

    2. For the Eurocom Q6: https://openbenchmarking.org/result/1806260-AR-1806268AR52

    Conclusions:

    Mate seems to have a higher performance penalty in windowed scenarios on both switchable and discrete graphics systems (as the test case above, yet performs consistently with fully composited applications (and full screen apps).

    The standard Gnome desktop environment's consistency with fully composited workflows on both systems (discrete and switchable graphics) has a higher variance, but in general:

    (a). Has a higher performance penalty on the switchable graphics system (nvidia prime)

    (b). Generally shows a greater throughput / better performance in all tests on both systems.
     
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  7. Dennismungai

    Dennismungai Notebook Evangelist

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    And by the way, G-SYNC with external monitors is available.

    Tested over both HDMI and mini-DP with an Acer Z35P panel.
     
  8. Hossbando

    Hossbando Notebook Enthusiast

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    Interesting. Thanks for the work.
     
  9. Dennismungai

    Dennismungai Notebook Evangelist

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    Thanks, you're welcome.
     
  10. Dennismungai

    Dennismungai Notebook Evangelist

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    Vasudev likes this.
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