Difference in timeline playback performance

adimatis wrote on 4/10/2020, 9:53 AM

Hi guys!

You have been so helpful to me before, so I write again here... Please help me understand - and maybe do something about it if possible - why there is such a SIGNIFICANT difference on how DaVinci Resolve handles my 4k 100Mbs files versus Vegas Pro 17.

When editing, with or without effects applied, Vegas timeline playback is not good at all... while DaVinci has no issues at all.

I attach here a video about this, as it will safe me the effort to explain. Please notice the Task Manager reports.

If you don't care to watch the video, point is:

- with Vegas I have the CPU about 70-80%, Intel UHD at 11% and GTX 1050Ti at 1-3% - bad performance

- with Resolve, CPU 20-25%, Intel UHD at 15-18% and GTX 1050Ti at 15-20% - super performance

LE: I forgot to mention in both cases I have applied some mild color correction and sharpening.

My PC: Asus GL703, CPU i7-8750H, 16Mb ram, SSD, GPU 1050Ti, UHD630.

I much prefer to edit in Vegas. That's why, please tell me if I can do anything to improve the timeline playback at all, or not. If there isn't anyway, I feel it is too much of a struggle to try continuing, but I really do not want to change. I like how Vegas does most of the things and I'd like to keep working with it.

What is the bottle neck? Can I do anything? Or is it as simple as a different way these programs uses the GPU and that's just that, not much to do about it only pray for future improvements in the future versions? :)

Thanks and Happy Holidays! And keep well and safe!

Adi

Comments

j-v wrote on 4/10/2020, 10:05 AM

I much prefer to edit in Vegas. That's why, please tell me if I can do anything to improve the timeline playback at all, or not. If there isn't anyway, I feel it is too much of a struggle to try continuing, but I really do not want to change. I like how Vegas does most of the things and I'd like to keep working with it.

What is the bottle neck? Can I do anything?

How do you think we could know. We don't nothing about the settings you use in Vegas, because you did not tell anything exept something about your sources and the used programnumber.

Turd wrote on 4/10/2020, 10:14 AM

Perhaps your preview quality is set higher than your system can keep up with in real time with Vegas? Knock it down a bit and see if that helps. I'm also a YUGE fan of beginning projects only after a fresh reboot.

michael-harrison wrote on 4/10/2020, 10:28 AM

Another variable could be use of proxies or not.

VP will use proxies for 4K videos *if you have that enabled* and otherwise will try to play the full-res source. Does Davinci do that by default?

adimatis wrote on 4/10/2020, 11:17 AM

I'll tell you whatever you think I should :) I am not very sure those settings are that you mention j-v...

I did not use proxies in neither program.

As for the preview quality, I tried all four options. Doesn't make a difference.

This only happens with 4k. FHD is fine on both.

I don't understand why the usage of GPU is so low with Vegas and what is the bottleneck, as CPU is not 100% let alone GPUs.

And overall how come Vegas seems to handle these 4k mp4 files so much differently than Resolve. About that I'd like to know if I can do anything or not...

Thanks!

j-v wrote on 4/10/2020, 11:25 AM

This only happens with 4k. FHD is fine on both.

What are your settings at Preferences/Video?
Which exact driver number is installed if you use a GPU.
What are your settings at Preferences/ File I/O?
Where on your hardware is Windows stored and where are your sourcefiles stored?

wilvan wrote on 4/10/2020, 11:27 AM

Try to mute the video layer at the bottom and see what effect this has .

adimatis wrote on 4/10/2020, 11:51 AM

@wilvan none... :) Does not make a difference.

@j-v I appreciate you helping, you did it before too! :) Well, here they are...

The driver... I would have liked to update it, but as per this thread, I cannot. If I changed to any other driver, Vegas would freeze if GPU acceleration was ON. If it's OFF, then it's ok, what what gives?

https://www.vegascreativesoftware.info/us/forum/nvidia-driver-issue--117284/

For this particular little test, the files reside on drive C, the same as OS. This is a 512 SSD.

Usually, for proper work, I have a separate drive.

I just tried another thing - if I delete all EFX and lowered the preview to Good>Half, with proxies, it runs smooth, with utilization of PC resources about the same. But then, how is this helpful...? On the other hand, do I know correctly that proxy files will "kick-in" only when choosing "draft" or "preview"?

Thanks!

j-v wrote on 4/10/2020, 12:08 PM

Thanks, most are good but you don't have the right Nvidia driver, that has to be this one also stated here by the Vegas developpers

You have to look at

and find this one

adimatis wrote on 4/10/2020, 12:17 PM

Thanks @j-v.

I am afraid I cannot do that. :( In the past, going ANY other driver than 399.24 froze Vegas constantly and so I couldn't use GPU acceleration at all. Don't ask me why, have NO idea what on earth is going on with it, but that's the fact.

I guess I will try giving it another shot - updating to the latest driver that is - when I will be ready to reinstall Windows at some point.

Such a mis(t)ery...

Thanks though! Appreciated!

Adi

michael-harrison wrote on 4/10/2020, 12:49 PM

@adimatis before you go the route of a windows reset or reinstall, try a clean driver install using this tool and the latest studio driver

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

adimatis wrote on 4/10/2020, 1:10 PM

@michael-harrison Thanks Michael, I have some sort of recollection that I might have used that application before... but then again I am not sure. I will give it a try! Appreciated!