[resolved]Performance in Beetle PSX HW core tanked in last few months?

Libretro Cores
#1

I don’t play PS1 games very often, so I’m not sure when it happened, but a few months ago I could play games like Resident Evil and Parasite Eve without issue. Nothing fancy, just native internal resolution, but it worked well.

I sat done recently to really dive into Parasite Eve and found the performance to be pretty bad. Seems to run at about 75-80% the normal speed with terrible audio crackling. Strangely, if I toggle on Fast Forward, the game seems to run at roughly normal speed with some slight audio crackling still. Same thing happens in other games, even 2D stuff like Castlevania Chronicles.

I’ve tried changing the video driver in both RA and core options. All seem to perform roughly the same as software rendering. Also tried using a fresh install of RA with new configs. No change. Other resource intensive cores like PPSSPP still work great.

My setup: i5-4690 @ 3.50 GHz, 8GB RAM, GTX 970, Windows 10 (x64)

Latest Stable RA, latest version of core, latest GPU drivers

#2

I don’t think there have been any changes to the core that would produce such a dramatic change in performance. If you can compile some older revisions and test them to better pinpoint if/when it changed, that would help us investigate.

#3

OK, I’ve figured out the issue. Not a core problem at all. Somehow my Windows Power Plan setting got switched to Power Saver, so my CPU was being throttled down to conserve power. Switched it to high performance and everything is working great again.

Sorry for the trouble!

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#4

Something I noticed while trying out the Parallel N64 Vulkan RDP is that the nvidia driver doesn’t like to ramp up properly during compute workloads. Forcing your graphics driver to maximum performance in addition to the cpu wouldn’t be a bad idea with these HW rendering cores.

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