supraman215Participant03/18/2015 at 16:44Post count: 13
I have a Rpi B+. using a PS3 controller over BT. Using a 32gb sony uhs1 microSD card
Installed Raspabian then Retropie on top of that. I have a script that runs before ES starts to check for a controller if it doesn’t find one it checks till it does then allows you to continue to ES.
However performance of the machine is slow. NES emulator specifically. It’s slow and there are sound issues. Genesis isn’t quite as slow but there are still sound issues. Here are the things I have done to help improve the preformance. N64 won’t run at all, I can hear sound but I see nothing.
Changed the GPU memory settings in /etc/boot.txt tried 256, 384 no difference. Some people suggest 128 but ES doesn’t run with that.
Changed the video settings in the es_systems config to run NES games (retroarch) in mode 1 (480p). This didn’t make much of an impact.
Took out WIFI card. This seemed to work at first but it no longer has an impact on performance.
Changed the overclock settings to turbo. I did a back to back comparison with turbo and medium and there was no change in performance when using retroarch for NES.
Changed the sample rate in the retroarch config to 44100.
Changed the audio driver for retroarch to SDL. This brought up an error in retroarch and it must have reverted at runtime to the other audio driver because I still had sound but it said it couldn’t find the SDL driver.
If I could atrribute the slowdown to anything I would think it started around the time I re-installed mupenplus through the retropie setup from source.
Not sure where to go next. Thanks in advance guys. Let me know if you need any files or settings info I’ll post whatever.
Jeffcacophony555Participant03/18/2015 at 18:11Post count: 126
What nes retroarch core are you running? Nestopia is too cpu intensive for the Pi 1, so you should Fceux instead.
Also have you verified that no other unexpected processes are consuming CPU while you run a NES game? Try telnetting to the pi while nes is running and doing a “top”.supraman215Participant03/19/2015 at 03:13Post count: 13
stella is the NES emulator I believe? I could do a top with an SSH connection but then I have to plug in the wifi and that can cause slowdowns as wellhaydendavenport2Participant03/19/2015 at 03:28Post count: 2supraman215Participant03/19/2015 at 03:38Post count: 13supraman215Participant03/19/2015 at 15:04Post count: 13
Oh sorry. I’ll check the core. But every system is experiencing the same slowness I checked a couple TGfx16, Genesis, and SNES games. All with the same audio issues. and slowness. I may create a new image. But that is time I don’t think I want to spend again.supraman215Participant03/23/2015 at 14:51Post count: 13
Retroarch is using the FCEUMM core. Not sure whioch one that is. I’ve got it OC’d to 1ghz. Genesis is now playing well nes is still slow.
Ok I got the speed issue solved completely. Updated overclocking setttings, will post, 2.1amp power supply. and 44100 khz sound for retroarch. I still dont’ have meupen64 completely working but that’s next step. I LOVE GoldenEye and Mario Kart!
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