https://bugs.winehq.org/show_bug.cgi?id=38043
--- Comment #2 from therealhdl@gmail.com --- (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.