search

libretro / snes9x2010

Snes9x 2010. Port of Snes9x 1.52+ to Libretro (previously called SNES9x Next). Rewritten in C and several optimizations and speedhacks.
Other
99 stars 71 forks source link

Slowdown in latest version #49

Closed TheBeverage closed 9 years ago

TheBeverage commented 9 years ago

Hi, using the version bundled with Retroarch 1.2.1 and the latest nightly for Wii, there is a significant amount of slowdown in certain games as opposed to 1.0.0.2, most notably the intro to Yoshi's Island runs at around 50fps where it used to be at 59-60.

askotx commented 9 years ago

+1, tested in Star Fox, if you leave FX overclock disabled, it runs to 60 FPS, but kinda slow but if you set it to 40, etc, fps will go slowdown more

inactive123 commented 9 years ago

You guys are barking up the wrong tree, there were no Wii performance regressions in SNES9x Next core but in RetroArch the frontend itself. I don't know yet what is causing the performance difference in 1.0.0.2 vs. 1.2.x, it should be possible to get that performance back over time but do note that Wii right now is not the main priority of RetroArch at this point.

askotx commented 9 years ago

OK, if it's not a performance regression, then what is it? I've compiled lastest of snes9x-next (ba8a662a36601a19e07fe46c552a96572cba19c8) source with retroarch(320b9b8745d69f149e25e4c049828ed7447a960e) v1.0.0.2 with and yes SFX emulation it's slow, have you tested?

inactive123 commented 9 years ago

Come up with a PR that brings the performance back then and Ill merge it.

askotx commented 9 years ago

ok, I'll send a PR, but it was a long time ago, let me test more to give you an exact commit, but it was between e3ac4fd502dbda20cc4bc0f4c92fa1cd09739ac2 and 8e21037456936a94b4f1709a9ad0f04e889a1ce0, something about APU, I'm no expert, I just compile it for my kids, they like playing retroarch on wii

askotx commented 9 years ago

I've tested all this commits:

e3ac4fd502dbda20cc4bc0f4c92fa1cd09739ac2 (APU changed) e51191f32391586468e6fbb5aea8ed7581a7c927 (MSB) ba8a662a36601a19e07fe46c552a96572cba19c8 (master 4 days ago) 8e21037456936a94b4f1709a9ad0f04e889a1ce0 (before APU changes)

All of them get SFX emulation slowndown, to solve it just set Sample Rate to 32000 and FPS will go to 59~60, so @twinaphex you can close this and sorry for my mistake.

TheBeverage commented 9 years ago

"Sample rate"? Where would that option be?

andres-asm commented 9 years ago

under audio settings

askotx commented 9 years ago

You must edit manually your retroarch.cfg file and search for audio_out_rate = "48000", just change it to 32000

TheBeverage commented 9 years ago

Took me a while to have some free time, but the audio fix works! Thanks a lot.