Fast Forward is "ramping up"

[DarkSide1305]

What version of melonDS DS are you using?

1.1.1

Does the problem happen in standalone melonDS?

I don't know.

What happened?

Not sure if this ever was brought up, but this already happened in the old Core: Fast Forward feels more like its a "ramp up", so it goes from standard to FF Speed over 3 or 4 seconds to the chosen FF speed

What should've happened instead?

It should immediately switch from normal to FF speed like all other cores

Which platforms do you see the problem on?

• [ ] Windows
• [ ] macOS
• [X] Linux
• [ ] Android
• [ ] iOS
• [ ] tvOS
• [ ] Other (specify below)

Which versions of the OS?

SteamOS, newest version

Which libretro frontend are you using?

RetroArch newest version, Flatpak

Terms

• [X] I agree to follow the code of conduct.
• [X] I understand that melonDS DS is not developed or maintained by the authors of melonDS.
• [X] I understand that this form is for reporting bugs, not for requesting help.
• [X] I understand that the author develops this core in his spare time, and that he is under no obligation to respond to this bug report.

[JesseTG]

Would you mind answering a couple of questions?

• Does this occur with other cores besides melonDS (current or legacy)?
• What are your power settings (assuming you're using the same Deck from your other tickets)? Especially anything involving CPU scaling.
• Does this occur when your Deck is plugged in? On battery? Both?

[DarkSide1305]

"Does this occur with other cores besides melonDS (current or legacy)?" The old MelonDS does have that issue as talked about, you should even be able to notice this in games, especially in the Music if you listen to it while you Fast Forward. Otherwise not really. N64, PS1, GBA, SNES, all of those are instant Fast Forward. Funnily enough, standalone PCSX2 has the same thing of Ramping Up FF... "What are your power settings (assuming you're using the same Deck from your other tickets)? Especially anything involving CPU scaling." Pretty much Vanilla. No GPU Overclock, no TDP Settings, no nothing. And if you mean in RetroArch, dont think I ever touched anything Power Settings wise "Does this occur when your Deck is plugged in? On battery? Both?" Both.

[JesseTG]

Which renderer are you using? Does it occur with both of them, or just OpenGL (which I assume is your preference based on other tickets you've opened)?

[DarkSide1305]

If you mean RetroArch Video Driver, Vulkan. In MelonDSDS, yeah I tend to like ot use OpenGL when I can for the Upscaling. I think OpenGL makes the Ramping Up take a little longer? It seems that Resolution Scale itself doesnt really change the ramping up time. It also seems to be somewhat random, I feel like sometimes it ramps up faster, sometimes a little slower. If you cant recreate this I could make a video.

[JesseTG]

I suspect that this is actually normal behavior, due to the way the CPU cache works. (In a nutshell, frequently-used stuff in RAM is faster to access.) I'd like to take some numbers before closing this ticket, just to be sure.