Does GPU-acceleration really work?

Hello, Wolpers.

1. First of all you should check item "Core2Duo profiles" when install SVP (pic).
2. After change ATI/AMD videocard to nVidia you must to uninstall all old video-drivers. Use special utilies for complete remove old drivers from your system. After that install nVidia WHQL-driver 275.33 or oldest. New ones has OpenCL 1.1 which are not completely supported by SVP yet.
3. At any time you can run SVPMark test to compare results with and without GPU.

Good luck

did you install OpenCL driver with catalyst software?
did you run svpmark? gpu-score and cpu-score are equal?

due to gpu-accleration I want to tip that it work but in 50% of cases bring a bit performance
gpu-accleration visibly at full-hd cinema with hard settings

wolpers0815
I don´t yet know how to interpret the SVPmark results
http://www.svp-team.com/wiki/SVPmark see description.

Yours scores are MG524 and MC303, what means 524 GPU-scores vs 303 CPU-scores. GPU-acceleration is working, but only in synthetic tests.
The result of Real-life subtests is N/A.
It is because of this line:

48 fps - vectors search:        N/A

I dont know why vectors search subtest is not working on your system.

previously i also had a rather slow system, q6600@3.2GHz with GF8600 that is still faster than yours. GPU acceleration was absolutely useless. when i asked about this on forum, i got the answer "gpu mainly helps with high/highest setting that is anyway overkill for your slow cpu"

amd 6670 should be enough for acceleration, but with your cpu it cannot help

So, you guys think that my cpu is too weak? To be honest, I never felt happy with that one, but nevertheless hoped to get into 2012 with that (especially after tuning the old stuff with a new graphics card). Maybe I´ll replace my whole system with a hopefully more powerful Sandy bridge.

OK, I played around with 720p50 material from our german tv stations. without_svp.jpg shows a screenshot with SVP stopped. All frame rates (in decoder, in ffdshow and in the evr) are around 50fps (as they should be). gpu.jpg shows a screenshot with SVP (gpu mode) turned on. The decoder and ffdshow input frame rate is 50fps. The evr shows 60fps. So everything is fine here except for the video stuttering due to my slow machine. Now it becomes a bit more interesting. The screenshot cpu.jpg, which shows SVP without gpu-acceleration, proofes that the gpu-acceleration is generally working. Because without it you can see that even the decoder isn´t able to keep the frame rate at 50 fps. But could you please tell me why the frame rate of the evr goes wild? It oscillates between 40 and 120. The screenshot shows for example 118.66 fps. Shouldn´t it be limited to 60 which is the monitor refresh rate when SVP is configured with "To screen refresh rate"? This strange behaviour results by the way in a number of message boxes popping up (see msgbox.jpg).

Well, here is another, more general question. When I think about the small hd resolution which is broadcasted with 50 frames per seconds, which is fine for video stuff, I wonder how films are handled, whose frames (speeded up from 24 to 25) were duplicated to 50fps. Does SVP first restore the original 24 frames (somewhere on your website I saw ReClock) and then secondly smooth these 24 frames to whatever is configured? Or how does SVP handle this case?

Thanks a lot for your good work, the infos and your patience, 

Wolpers

wolpers0815
One active user of SVP (gaunt) had the same problem with jerkiness on Athlon, he couldn't find out but bought Core i5.
You can ask him about details.

The simple advises of make SVP work better are:
- to run DPC Latency Checker and look to its results, it is must be below 1000 ns;
- to kill all other processes from task manager when run SVP;
- to clean system / to reinstall windows...

Why your videos from Sat are 50 fps?
Are all frames different or there are frames-duplicates in video?

SVP is not supported frames-duplicates. At least current version.
You should to restore original framereate before using SVP.

About messagebox about wrong (big) framerate. It is left video or not correct DS-Splitter. Change it to another.

Yes. You can add it manually.
1. Open video and wait for OSD-message "Smooth playback" (green triangle at SVP-icon in system tray).
2. At SVP-icon menu: Show - AVS-script from last play.
3. In opened script add line with SelectEvery just after ffdShow_source line and add multiplying of 2 to multinum value.

4. Close script with saving changes.
5. Rewind in player. Changed script will be applied.

But I can not guarantee smooth and jerky free result because of multi-threaded SVP script don't like changed frame order at input. SelectEvery does change frame order. Changed script produce lags at scene changes moments at video to me at my system.

I think, restoring frame rate to original before use SVP is the best idea

It will be great, but now it is fantastic.

Letter from tayga "can't enable GPU-acceleration"

ya i found out i have to downgrade my nvidia drivers to use OpenCL 1.0 since 1.1 doesn't work witch is weird and i don't wanna do that since i play games so if fixing it a bummer to do i'll just have to reinstall using a lower profile