Guilty gear xx accent core plus bad performance

[sergioad]

Game or games this happens in

ULUS-10409 Guilty gear xx accent core plus

What area of the game

After VS screen, aggressive play is typically rewarded in this game, but while in a long and flashy combo special or super like Order Sol's Lv3 234S the gameplay goes from 57 FPS to 38

Speed seen in PPSSPP

38 FPS

GE frame capture and debug statistics

No response

Platform

Raspberry Pi

Mobile phone model or graphics card

rpi4 8GB

PPSSPP version affected

1.9.13

Last working version

No response

Graphics backend (3D API)

OpenGL / GLES

Any other notes or things you've tried

It works in Vulkan but not in OpenGL, BlazBlue Continiuum shift 2 and extend (even bigger and in theory harder to emulate games) work flawlessly over OpenGL

Checklist

• Test in the latest git build in case it's already fixed.
• Search for other reports of the same issue.
• Try resetting settings or older versions and include if the issue is related.
• Try changing graphics settings to determine if one causes the slowdown.
• Include logs or screenshots of issue.

[ghost]

I can repro this on my phone the fps drops to 40fps when special effects execute likely similar to #13480 (comment)

[sergioad]

@hrydgard the correct tag is OpenGL, not Vulkan 😀

[unknownbrackets]

You noted 1.9.13 was affected, but that the latest version still is. To confirm, performance is the same between them?

A GE frame dump of the scene would be helpful (while it's slow - it may be helpful to use alternate speed to slow it down to capture an appropriate frame.)

This might be a specific special effect - "bigger" and "impressive" games aren't necessarily harder to emulate fast, sometimes a special effect can be complicated to render even if not visually stunning. Usually a developer would not spend as much time on a less exciting effect, which is why there's a correlation - but sometimes things are quick 'n dirty on the PSP, but complex for more modern devices/OpenGL.

That said, this may be something we can improve. A frame dump would help confirm.

-[Unknown]

[sergioad]

Let me check what can I do, if I can I will pull as much information as I can

[ghost]

Let me check what can I do, if I can I will pull as much information as I can

Capture ge dump via http://ppsspp-debugger.unknownbrackets.org/cpu

[ghost]

No feedback? @sergioad

[sergioad]

No, I currently can not use my pi

[ppmeis]

Tested in latest Windows build. No issues.