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A customer should be able to assume that all cores, no matter how many, are used to maximum level so the work gets done faster. That's the whole reason you buy a CPU like tha tin the first place. It really makes no sense to have 16 cores only to have software that doesn't make effective use of them so that the CPU just sits there idle.
Quite honestly, I think that the Threadripper CPU has caught software vendors off guard and has revealed serious limitations in multi-core software. Hardware didn't finally catch up to software - it blew past it, catching a lot of software products with its pants down.
A CPU like a Threadripper 1950 should have even 4K video processed in mere minutes with all HA turned off.
What really needs to be in any serious processing software is an option I've seen in few products - a checkbox option for CPU loading so the user themselves can set the performance level:
-LIGHT (Around a 20% CPU load, the kind of processing level the OP is complaining about)
-MEDIUM (Average 50% CPU load)
-HEAVY (Average 80% CPU load)
-FULL (99% CPU load, computer laregely unresponsive until task completes)
Any programmer knows that this is a very simple feature to add into any software product's processing loop structures.
lol
We’re talking about 12% utilization across 8 cores and 16 threads.
The load is is spread across all cores. If the power isn’t needed it isn’t used. What will it be used for. There is nothing else.
PowerDirector doesn’t even really support the types of media and workflows that would tax this CPU. It’s not after effects or fusion, and it’s users aren’t editing ProRes 444 or Cinema DNG 4K. Load something like that into Resolve or even Vegas Pro and you’ll get a bit more editing value out of that CPU. With H.264/HEVC, a lot of work is offloaded to other components and hardware SIPs.
What GPU does the OP have in that machine?
Turning Acceleration off will increase CPU load, but it’s called acceleration for a reason. Those components do the tasks they accelerate faster than a CPU. Otherwise, why have it at all?
Rendering 4K in “mere minutes” is only a reality for people who do nothing but tiny social media videos with barely any editing, VFX, etc. 4K is 4x the Pixels of Full HD. It’s considerably more work, for every component involved. With effects processing, etc. GPUs become a common bottleneck at 4K, for example.
This is is like trying to game with CPU only rendering. Your CPU usage will go up, and you’ll feel good about all your cores; but your graphics rendering performance will be shot, because CPUs are terrible at that. That’s why some effects are GPU accelerated while others aren’t. It depends on the type of effect. Some don’t benefit much, or at all from GPU acceleration.
Again: Using CPU cores when a Hardware Encoder SIP or GPU can handle things is awful.
In in order to troubleshoot the “problem,” actual information is needed.
Bloviating about things you do not understand will not help matters.
We need to know what GPU the OP has, his performance settings, and the CODEC/Resolution/Framerate of the media he’s using.
Also need to know what type of effects he’s using in the project: LUTs, Color Grading, etc.
I’d also use a CPU and GPU monitor to see how each component is being used while rendering, as that can be a clue to potential bottlenecks.
It’s possible that that his performance is being bottlenecked off the CPU. It’s also possible that the software can have a bug. I’m not saying either is the case. I’m saying the question, as posed, is impossible to answer or assist with - because it’s devoid of almost all the information needed to do so.
Follow-Up: I installed PowerDirector on an AMD A10-5745M notebook and it doesn’t cap the CPU cores (there are 4) when rendering anything including 4K with Acceleration turned off, which really should max it. It seems to cap out around 70% or so. I’ve looked around the forums and it seeens a lot of people report poor utilization of AMD CPUs with this software.
I get similar utilization with VideoStudio 2018 and Vegas Pro (can’t test Premiere CC and Resolve on that CPU). I don’t have this issue on my Intel machines, nor does it happen on an even older Intel Pentium Laptop we have here. Only the AMDs are behaving this way. Seems to be a common issue.
This message was edited 7 times. Last update was at Aug 28. 2018 05:53