[Bug 52960] New: Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

Bug ID: 52960
           Summary: Damavand is being more CPU-intensive than DXVK
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hi,

I remarked on my laptop (Ryzen 5800H + Navi 6700M) that Damavand is more
CPU-intensive than DXVK.

I did a test with 3 games where i mesured the CPU temperature during 90
secondes. I attached all logs for Witcher 3, A Plague Tales Innocence &
Control.

For Control & Witcher 3, you can see that with Damavand, the temperature is
higher between 10 and 20 degrees celcius. For "A Plague Tale Innocence", the
difference is between 5 and 10 degrees celcius.

These mesures were done with sensors -> "while true; do sensors | grep 'Tctl'
> > APlagueTale_DXVK.txt; sleep 1; done"

I'll try on my desktop (Ryzen 5600X + Navi 6700XT) if i have the same issue.

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #1 from Maxime  ---
Created attachment 72336
  --> https://bugs.winehq.org/attachment.cgi?id=72336
A Plague Tale with Damavand

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #2 from Maxime  ---
Created attachment 72337
  --> https://bugs.winehq.org/attachment.cgi?id=72337
A Plague Tale with DXVK

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #3 from Maxime  ---
Created attachment 72338
  --> https://bugs.winehq.org/attachment.cgi?id=72338
Control with Damavand

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #4 from Maxime  ---
Created attachment 72339
  --> https://bugs.winehq.org/attachment.cgi?id=72339
Control with DXVK

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #5 from Maxime  ---
Created attachment 72340
  --> https://bugs.winehq.org/attachment.cgi?id=72340
Witcher 3 with Damavand

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #6 from Maxime  ---
Created attachment 72341
  --> https://bugs.winehq.org/attachment.cgi?id=72341
Witcher 3 with DXVK

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

Fabian Maurer  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #7 from Fabian Maurer  ---
CPU Usage and FPS would be more useful than temperature, IMHO.

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #8 from Henri Verbeet  ---
I suspect a good chunk of the difference is due to WINED3D_CS_SPIN_COUNT being
unreasonably large, which is something we're already aware of and should have a
solution for in the near/medium term.

Fundamentally Fabian is right though; higher CPU utilisation isn't necessarily
a problem if that results in better performance. FPS/frame time is one measure
of that, but you'd want to look at GPU utilisation as well.

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #9 from Maxime  ---
(In reply to Henri Verbeet from comment #8)
> I suspect a good chunk of the difference is due to WINED3D_CS_SPIN_COUNT
> being unreasonably large, which is something we're already aware of and
> should have a solution for in the near/medium term.
>
> Fundamentally Fabian is right though; higher CPU utilisation isn't
> necessarily a problem if that results in better performance. FPS/frame time
> is one measure of that, but you'd want to look at GPU utilisation as well.

my tests yesterday were done with cmst enabled.
Disable it allows to have a lowest cpu-load and temperature.
I thought csmt was related to OpenGL only.

I tried to do a graph for DXVK/DAMAVAND (with csmt disabled)

[Bug 52960] Damavand is being more CPU-intensive than DXVK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52960

--- Comment #10 from Henri Verbeet  ---
(In reply to Maxime from comment #9)
> my tests yesterday were done with cmst enabled.
> Disable it allows to have a lowest cpu-load and temperature.
> I thought csmt was related to OpenGL only.

No, it's orthogonal; you can use either the OpenGL or Vulkan backend with csmt
either enabled or disabled.