[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

            Bug ID: 108652
           Summary: I suspect that in kernel 4.19 power limit decreased in
                    4 times on Vega GPU
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mikhail.v.gavrilov@gmail.com

Created attachment 142364
  --> https://bugs.freedesktop.org/attachment.cgi?id=142364&action=edit
shining LEDs (now in 4K scenarios)

I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU
I remember that earlier in the GPU bound scenarios all LED are shining. Now I
have never seen more than two LEDs shining at the same time even when GPU is
100% loaded (I see this by HUD monitoring)
I even forgot when I heard last time when turbine roared.

>From the point of view of audio comfort, this is all great, but the feeling
that video card was became weaker does not leave me, and it upsets.
Unfortunately, I have nothing to compare I don't like use old kernels because
they have a lot of not fixed old bugs.

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[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
Has the performance changed in any specific applications?

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[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

--- Comment #2 from mikhail.v.gavrilov@gmail.com ---
I would welcome any increase of FPS since I play on a 4K monitor.

1) Project CARS 2

GFX Clocks and Power:
        700 MHz (MCLK)
        984 MHz (SCLK)
        1269 MHz (PSTATE_SCLK)
        700 MHz (PSTATE_MCLK)
        818 mV (VDDGFX)
        62.0 W (average GPU)

GPU Temperature: 74 C
GPU Load: 100 %

7 FPS on medium settings it's FAIL.
I am sure that Vega 64 can do 50FPS on high settings:
Proof: https://youtu.be/tpBubGwj8Fo


2) Shadow of the Tomb Raider

GFX Clocks and Power:
        700 MHz (MCLK)
        981 MHz (SCLK)
        1269 MHz (PSTATE_SCLK)
        700 MHz (PSTATE_MCLK)
        818 mV (VDDGFX)
        76.0 W (average GPU)

GPU Temperature: 74 C
GPU Load: 99 %

15 FPS on high settings it's better that in previous game, but I am sure that
Vega 64 can do 30FPS on more higher settings:
Proof: https://youtu.be/ZIA_GjcB8BQ?t=66


So we see that Vega has 981 MHz instead of possible 1500 MHz and power
consumption 76.0 W instead of 240 W.

I can only guess why GPU consumer qualities were reduced.

# cat /sys/class/drm/card0/device/power_dpm_state
performance

# cat /sys/class/drm/card0/device/power_dpm_force_performance_level
auto

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[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

--- Comment #3 from mikhail.v.gavrilov@gmail.com ---
Created attachment 142389
  --> https://bugs.freedesktop.org/attachment.cgi?id=142389&action=edit
Project CARS 2 - screenshot with FPS counter

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[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

--- Comment #4 from mikhail.v.gavrilov@gmail.com ---
Created attachment 142390
  --> https://bugs.freedesktop.org/attachment.cgi?id=142390&action=edit
Shadow of the Tomb Raider - screenshot with FPS counter

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[Bug 108652] I suspect that in kernel 4.19 power limit decreased in 4 times on Vega GPU

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https://bugs.freedesktop.org/show_bug.cgi?id=108652

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #5 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/594.

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