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

[bugzilla-daemon@freedesktop.org]

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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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