Flycast Issue: frame pacing/drops

Libretro Cores
#1

I noticed some Issue with frame pacing/drops in flycast

the problem appears not when i 1st launch a game but at the second (sometimes 3rd) launch.

so, i open RA, launch a game and everything is fine (stedy 60fps) but if i close content and relaunch i can clearly see some frame pacing/drops issues (note that retroarch FPS counter still says 60).

to “fix” this i have to quit from RA and again the 1st launch of the game is back to normal stedy 60 fps.

i tested this with Virtua tennis 2. launching the game and then load state to gameplay.

im on 1.9.0 in windows 10 64, i5 6400, 8 GB of ram and GTX 960

using vulkan as video driver.

can someone try to replicate this or have any idea of why this is happening?

#2

update: i found this line in the libretro flycast page:

  • Changing games without closing and reloading RetroArch often leads to RetroArch crashing.

so maybe what i noticed in regards of frame pacing/drops is something related to this, in my case is not crashing but flycast starts to be unstable, and other than the issue above i also noted that after 1 or 2 games launch emulation does not pause when i open RA’s menu.

#3

Issue solved thanks to this

Update RTSS to 7.3.0 beta 5 solved all instabilities related to vulkan.

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