Hi!
I've been using SVP for quite a while, but only recently started using it on my HTPC. Problem is, the performance can be horrible for some videos, while it's okay with others. The issue is not resolution related, since I have a bunch of 720p videos that run fluently, and then there are other 720p videos that stutter and slow down so much that they go out of sync with the audio.
System:
AMD Athlon 5350 APU (4 cores @ 2.1 GHz, with integrated Radeon HD8400 GPU)
8GB RAM (1600MHz, CL9)
Windows 10 64bit (up to date)
Radeon Software driver 15.12
SVP:
Up to date with all components, currently at 4.0.0.54
Using madVR
Using default settings
Using GPU acceleration
Using MPC-HC installed by SVP
Now I know this Athlon 5350 is pretty far from being a beast, but still, it's not a bad APU. I've seen it demonstrate an impressive performance compared to its price several times, and even if the 4 CPU cores it has weren't enough, it also has an AMD GPU and plenty of memory.
Still, SVP performance is pretty bad on this thing. I do understand frame interpolation is a complicated thing to do / calculate, but I would expect such a system to be able to do it up to FullHD. Problem is, it can't.
SVP Performance slider is already set to maximum performance. CPU load is jumping between 90-100%, while SVP Index is jumping around 0.8 - 1.1. I've also checked the GPU load using GPU-Z and it's a bit weird. It generally is 100% but with quite a few short gaps in it, where the GPU load falls straight to 0% as if it ran out of stuff to do.
Is such a system really too weak to run videos with SVP? Or are there some kind of magic settings that can be used to improve performance?
I've tried reinstalling without madVR, but that didn't seem to change anything at all. Please help...
P.S.:
What I find really really weird is, that playing the very same video on my desktop PC shows the following:
Intel i5-3570K
AMD R9 390
Software and SVP setup is exactly the same (Radeon SW 15.12, Win10 64bit, same SVP settings except the performance slider is up to about 2/3 into the High Quality zone)
CPU load is about 30-40% and GPU load is basically non-existent. Ocassionally it spikes to about 50% then instantly goes back to 0. GPU acceleration is of course enabled.
So howcome my desktop PC doesn't break a sweat when playing that movie, while the HTPC dies trying? And howcome one of them has 100% GPU utilization with some gaps, while the other one doesn't seem to use the GPU at all?