[Bug 38043] New: Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

Bug ID: 38043
           Summary: Regen: does not reach max frame rate
           Product: Wine
           Version: 1.7.36
          Hardware: x86-64
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 50676
  --> https://bugs.winehq.org/attachment.cgi?id=50676
Screen shot of Regen with "show FPS" option enabled.

Regen, the Sega Genesis emulator, does not reach 60 FPS.  It easily reaches 60
on the same hardware when running in Windows.  Download links available here:
http://aamirm.hacking-cult.org/www/regen.html

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

--- Comment #1 from Ken Thomases  ---
What version of Regen did you test with? I see 0.972 and 0.972 SSE2 at the site
you linked.

I assume one needs a game ROM to see the problem. Is there a legally
freely-available ROM that I could download to test with?

In the meantime, when it is running, is there a wine process using ~100% of a
CPU or more? Or are they using much less CPU?

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

Ken Thomases  changed:

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

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

--- Comment #2 from [e-mail] ---
(In reply to Ken Thomases from comment #1)
> What version of Regen did you test with? I see 0.972 and 0.972 SSE2 at the
> site you linked.
>
> I assume one needs a game ROM to see the problem. Is there a legally
> freely-available ROM that I could download to test with?
>
> In the meantime, when it is running, is there a wine process using ~100% of
> a CPU or more? Or are they using much less CPU?

I've tested with every version (other than Linux, of course).  Same behavior
with all of them, but I typically use SSE2 as it has some performance benefits.

Here are a few freely available homebrew ROMs people have made:

http://www.alyjameslab.com/download.html (YM2612 Instrument Editor)
http://bughunt.nolddor.ovh
http://oerg866.titandemo.de/projmd/download.html

With a ROM loaded in Regen, the Wine process uses 12.5% total CPU but 100% of a
core.

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

--- Comment #3 from Ken Thomases  ---
For me, turning on Alternate Timing seems to get it to 60 FPS.  That option is
documented in the ReadMe.txt as:

Alternate Timing     - Normally Regen uses sound card for timing but some
              sound cards have problems with this. This causes FPS
              being jumpy and video/sound being skippy. Enabling
              this will cause Regen to use other timers for timing
              to fix that problem. So if you are experiencing those
              problems try enabling this.

Does that work for you?

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

--- Comment #4 from [e-mail] ---
(In reply to Ken Thomases from comment #3)
> For me, turning on Alternate Timing seems to get it to 60 FPS.  That option
> is documented in the ReadMe.txt as:
>
> Alternate Timing 	- Normally Regen uses sound card for timing but some
>    		  sound cards have problems with this. This causes FPS
>    		  being jumpy and video/sound being skippy. Enabling
>    		  this will cause Regen to use other timers for timing
>    		  to fix that problem. So if you are experiencing those
>    		  problems try enabling this.
>
> Does that work for you?

It does work, thanks.

Although I noticed that the core usage goes up from 13% to around 72% if I
place another window over Regen's, or if I switch to another virtual desktop. 
Should I submit that as a separate bug?

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

Ken Thomases  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Ken Thomases  ---
(In reply to therealhdl from comment #4)
> (In reply to Ken Thomases from comment #3)
> > For me, turning on Alternate Timing seems to get it to 60 FPS.  ...
> >
> > Does that work for you?
>
> It does work, thanks.

OK.  I'm marking this bug as invalid since the problem apparently happens on
Windows in some cases (or that option wouldn't be needed).
> Although I noticed that the core usage goes up from 13% to around 72% if I
> place another window over Regen's, or if I switch to another virtual
> desktop.  Should I submit that as a separate bug?

If you feel it's sufficiently buggy to warrant reporting, it should be a
separate bug.  You should, of course, check first whether there's a similar CPU
usage pattern on Windows (with Alternate Timing enabled).

[Bug 38043] Regen: does not reach max frame rate

https://bugs.winehq.org/show_bug.cgi?id=38043

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #6 from Austin English  ---
Closing.