Bug: graphics update rate slowly drops over time about cool-retro-term HOT 4 OPEN

May be it eats all VRAM? Did you try monitoring it?

from cool-retro-term.

I doubt this is a VRAM issue. VRAM is (as far as I know) a shared resource and excessive usage by CRT would cause failures in other things. That's not the case at all, nor is there any activity in the system logs indicating any sort of problem there. So whatever this is, it appears to be purely internal to CRT.

from cool-retro-term.

This doesn't strike me as an issue of running out of VRAM. It does appear to be sensitive to the Effect FPS setting, especially if you crank it to "Max." No one should be doing this except those with the flex of having a high refresh rate display. It's more likely that there is some internal timer for the effects that's getting screwed up by "max."

@kcbrown : you have discovered, as I did while testing for #836, that modifying the Effect FPS "restarts" the timing of effects like the rolling glow line, and the persistence ('burn-in').

from cool-retro-term.

This doesn't strike me as an issue of running out of VRAM. It does appear to be sensitive to the Effect FPS setting, especially if you crank it to "Max." No one should be doing this except those with the flex of having a high refresh rate display. It's more likely that there is some internal timer for the effects that's getting screwed up by "max."

@kcbrown : you have discovered, as I did while testing for #836, that modifying the Effect FPS "restarts" the timing of effects like the rolling glow line, and the persistence ('burn-in').

This issue occurs even if you have the FPS set to a value. I usually use a value of 24 FPS.

So there doesn't seem to be any avoiding it, near as I can tell. And this clearly means that "max" has nothing to do with it. It may be a problem with the internal timer or it may be something else. I can't say, and haven't figured out how to determine what's behind it. If root cause determination was something I could figure out how to do then I'd have already done it.

from cool-retro-term.