[Bug 101749] sclk scales badly in war thunder

[Bug 101749] sclk scales badly in war thunder

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https://bugs.freedesktop.org/show_bug.cgi?id=101749

            Bug ID: 101749
           Summary: sclk scales badly in war thunder
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: higuita@gmx.net
        QA Contact: dri-devel@lists.freedesktop.org

When playing with war thunder and running radeon-profile on a A10-7850k and a
RX480, i notice that the GPU sclk scales from 300MHz to about 320-420MHz ...
very far from the max of 1.3GHz.

The GPU load is always low, about 20-30%, but if i manually increase the sclk
to the max, i get a performance increase of about 40% and the GPU load is still
about the same... i found that the GPU running above about 600-700MHz, i get
almost no performance increase... but the 300-400MHz is too low.

So for this game, amdgpu/radeonsi is not scaling as it should, probably the
game engine do not help. As far as i know, the game is mostly OpenGL 3.2, to
keep compatibility higher with older cards, if it matters.

I'm using kernel 4.12 and mesa-git 4db72852a16fc4a2a559255f9965e1d02e4f2b9c,
llvm 4.0.1 , on a slackware 64.

The game is free and have benchmark included, so anyone can test it.

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[Bug 101749] sclk scales badly in war thunder

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https://bugs.freedesktop.org/show_bug.cgi?id=101749

--- Comment #1 from Christoph Haag <haagch@frickel.club> ---
Possibly the same as bug 100742 which is very visible with SteamVR.

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[Bug 101749] sclk scales badly in war thunder

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https://bugs.freedesktop.org/show_bug.cgi?id=101749

--- Comment #2 from higuita@gmx.net ---
a apitrace link in https://bugs.freedesktop.org/show_bug.cgi?id=101978#c5 may
help test this.

talking with other people, looks like amdgpu and war thunder are performing
badly in several GPUs, if not all of then

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[Bug 101749] sclk scales badly in war thunder

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https://bugs.freedesktop.org/show_bug.cgi?id=101749

Timothy Arceri <t_arceri@yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #3 from Timothy Arceri <t_arceri@yahoo.com.au> ---
Reports from bug 100742 are that this issue has improved with recent kernel
updates. Can you confirm is this is still an issue?

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[Bug 101749] sclk scales badly in war thunder

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https://bugs.freedesktop.org/show_bug.cgi?id=101749

higuita@gmx.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from higuita@gmx.net ---
war thunder game downgraded the existent opengl4 engine  (used only by linux)
to opengl3 (share with macosx), to free resources to develop the vulkan
version, so i can't test anymore the same setup...

... but testing with the current oepngl3 version, sclk jumps to the max
frequency when the game is running, so i would say that this really improved a
lot in recent kernels

i'm using right now kernel 5.1.x kernel and mesa 19.1.1

So this can probably be closed

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