On Wed, 22 Jul 2026 11:47:19 +0100
Leah Rowe <info@minifree.org> wrote:

> 
> Technically, you could run PCSX2 with w^x as there is an interpretive 
> emulator included within it; at least, I'm sure that's the case.
> 
> But yeah, the entire emulator uses really advanced dynamic
> recompilation for performance, to make all the games run.
> 
> 
> Am 22.07.26 um 10:31 schrieb Stuart Henderson:
> > On 2026/07/22 08:44, Leah Rowe wrote:
> >> pcsx2 on openbsd would be pretty dope. w^x though?
> >>>>> - USE_WXNEEDED and USE_NOBTCFI need a comment explaining what
> >>>>> the problem is.
> > hence the USE_WXNEEDED ^^
> 

For the emulators/melonds port I maintain, enabling the W^X-style JIT
recompiler when running a particularly hard to emulate game didn't
really improve anything for me, performance-wise, on OpenBSD:

https://github.com/melonDS-emu/melonDS/pull/2398

You can try running a dump of your physical cart of "Animal Crossing:
Wild World" with JIT on emulators/melonds and you'll still see
stuttering frames and audio crackling even on a very fast amd64 CPU.
This behavior is the same even without a JIT.

I'm not too hopeful this type of JIT will improve anything for PCSX2 on
OpenBSD, for this reason. Or- maybe the JIT on MelonDS is particularly
inefficient and I'm completely off base here.

The main reason I fixed up JIT support on MelonDS for OpenBSD was to
simplify the port to be closer to upstream defaults. The W^X-type of JIT
doesn't seem *that* beneficial to us on OpenBSD, performance-wise.

OFC I could be mistaken...

Thanks-

Have a nice day.

-- 
iz (she/her)

> I say mundane things
> so the uninteresting
> just might get noticed.

izder456 (dot) neocities (dot) org