@superdan
I suggest following the RetroPie wiki instructions on 4K resolution performance issues: https://retropie.org.uk/docs/Pi4/?h=4k#4k-video-display

@MCG_1983
Some shaders are effecting drastically performance. What shader are you using?

If you enable FPS counter, you will see the frames, so to be sure that you have frames drop and not screen tearing. You can enable this during the game from here :
Open Retroarch menu during game > Settings > On-Screen Display > On-Screen Notifications > Notification Visibility> Display Framerate

@d1rk said in Install old Vice versions:

So, my question now Is how can I run the latest retroPie and install Vice 2.4?

Though not really support, you can try to save the emulator from that old version (the entire folder /opt/retropie/emulators/vice) and copy it to the latest version.

@abj it was pretty bad before turning off 4k. Now it's at least playable.

@LLD you can learn more about the lr-flycast situation on retropie at https://retropie.org.uk/forum/topic/34729/lr-flycast-binary-file-update-8-mar

To use current flycast i suppose you'd just need to replace the lr-flycast.sh script currently bundled in retropie setup by this this one .

@RetroMalina said in Pi 3B+ Peak Performance.:

My question is, Can a Retropie 3B+ run N64 games stably

Not really. Some N64 titles don't run well (or at all), even on a Pi4.

@Simrose said in lower video resolution to improve performance?:

I have currently default settings with retropie except I disabled 4k in the config.txt as recommended.

how did you do this, specifically? posting your config.txt would help.

@Simrose said in lower video resolution to improve performance?:

I've read on some posts in this forum and from the web that lowering to 720p resolution might help improve overall emulation performance.

i disagree with the premise. 1080p should be fine for pi4 at default settings. reducing the resolution further can give ugly scaling artefacts, especially on a larger TV.

perhaps it's better to state the specific speed issue you're having, and we can diagnose it.

@Darksavior said in Retropie slower on raspberry 4 than 3 ?:

ge the resolution to 1080p.

I saw that on reddit and did it, and yeah, it helped a lot.
I am using group 2 and mode 82, I wonder if group 1 mode 16 would do a difference.

I still have a few glithces but nothing insane. But still worst than pi 3.
I am considering buying a better case, I have active cooling but it's noisy.
The PSU seems fine (5V/3A).

@mitu thanks for the reply. I turned off my shader preset to see what would happen, and it does improve performance to "mostly" 60fps. The global shader I use is just "sharp-bilinear-2x-prescale" which afaik isn't supposed to be demanding at all, so I'm surprised performance tanks so badly with it on.

Unfortunately I've screwed up the video settings for all the snes cores by attempting to remove the global shader preset from bsnes, while keeping it in place for snes9x. Shaders don't work at all for snes anymore, and different resolutions in the runcommand menu aren't even working... I don't know why that happened.

Bsnes is causing me too much trouble, so i'm just gonna uninstall it once I restore my backup...

@mitu said in Requesting help for diagnosing ES issue on Pi4B:

@roslof when you have the chance, can you try installing the latest emulationstation-dev from source ? There's a fix added that should help speed up the initial loading.

@mitu as you would expect, with Last Played toggled true, load times are no longer in excess of 50 seconds for me. Cheers to you for the fix!

@jamrom2

Nice work !

And of course adafruit put 4gb pi's up not an hour after I posted this. So of course I jumped on it. Now, an hour after that, they are out of stock of 4gb, but the 2gb is in stock.
Oh well, 4gb is overkill, but it's better than scalping prices off elsewhere.

@magnetaphan try without it just to be sure. Also try on a different TV if possible.

@good_punk Not sure what tweaks Dosbian added to their Dosbox versions, one thing I see is that they've disabled the KMS GPU driver in their config

[pi4] # Enable DRM VC4 V3D driver on top of the dispmanx display stack #dtoverlay=vc4-fkms-v3d max_framebuffers=2

Either Dosbox or Dosbox-Staging should be ok, start with the default configuration and try to find a fixed cycles value that's suitable for each game (on ARM, cycles = auto doesn't work so well). You can ask in the Dosbox-Staging topic or look in the Dosbox Staging wiki for pointers.

Thanks everyone.
It was due to bad dumps. I had bin files and a .zip romset solved the problem.
The control issue came from the 8bitdo controller. I connected it like a switch pro controller and everything is fine again.
I went further and replaced some of the original roms with dreamcast ports in order to use Redream. Really good perfs now !

@dankcushions Thanks, I'll try the video thing.
I'm very sorry to hear that the splash screen is not solved!
I'll wait for the next update.

@dankcushions said in Noted lr-mame2003 performance issues after RA update to 1.9.5:

@jamrom2 said in Noted lr-mame2003 performance issues after RA update to 1.9.5:

As of now, I set up lr-mame2003 as I need it with a few options, saved the retroarch.cfg once and turned off "save on exit". It's now pulling the video parameters of every game I throw at it based on what I have listed in the file I posted to you.

i guess i'm not totally clear on what you want to achieve. retropie at the basic level has a global retroarch.cfg (/all/retroarch.cfg) which has the baseline settings for all libretro (lr-) emulators. then beyond that there's per-directory configs (eg /mame-libretro/retroarch.cfg) which by default point to an input_remapping_directory, and then defer back to the global config, as you've shown above.

then additionally you can have per-game overrides, per-core overrides, and gamename.ext.cfg overrides. to set up any of these you don't need to ever set 'save on exit' on. it's probably safest to manually create them, actually.

so i'm not sure exactly what hierarchy of configs you want to end up with, and what you currently have.

Ultimately... to not have this happen the next time I choose to upgrade any core part of the build... LOL. I thought I was doing something good by updating RA from 1.8.8 to 1.9.4 then .5. But my build has apparently become so convoluted that I disrupted areas I wasn't aware of.

I'm going to say by adding in the scriptmodules I added more issues than I was aware of. Just the idea that I turn off a shader and I loose performance means something is crossed somewhere.

I'll keep poking around my config files and hopefully find out what's causing some of this. What you and mitu offered was insightful and helped a lot.. but I think this is something that will ultimately leave me with a "it's working good enough" scenario.

Espgaluda (the fist one)

I've always been a bit too intimidated by the look of bullet hell shooters so have only recently got into them.

I really like this one, more than DoDonPachi, the music is great and it feels great to play. It's pretty hard I only get to Lvl 3 so far (without continue).

Playing Vertically with FBNeo

9/10 (for the Genre)