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cpu not being used past 3/4

Posted: Mon Oct 03, 2016 6:03 pm
by mathewlisett
ok so ever since i did a frsh install of my system and set everything up, for some reason my cpu isnt getting used to all it can, instead the cpu is only working at 2/4 the effort for an 8 minute clip it should be done within about 5-10 minutes and instead its taking about 30 minutes and thats with the gpu helping.

and yes i did try the optimized settings for the cpu and gpu and when that was doing its thing the cpu barely moved.

so tried the test again but with the cpu only, and this time it would go past 3/4
im on the most recent 4.2 pro version and the hardware setup is as follows

980ti hyrbid
i7 5960x at 4.5
64 ddr4
rendering from and too m.2 via pcie (2x separate ones)

Posted: Tue Oct 04, 2016 9:12 am
by NVTeam
Please post the log from Optimize window.

Thank you,
Vlad

Posted: Thu Oct 06, 2016 4:18 pm
by mathewlisett
Image

Posted: Thu Oct 06, 2016 4:41 pm
by NVTeam
Thank you for the results of optimize. Those look adequate.

The frame size looks small. Do you normally work in that resolution?

Vlad

Posted: Thu Oct 06, 2016 4:45 pm
by mathewlisett
so its ok for the test and optimization to not make the cpu and gpu you full blast to see what it can do then? as thats what happening here, the gpu is barely getting above 40% and the cpu is getting about half way.

resolution all depends

but as of right now considering the gpu has cuda cores and is the 980ti, i would be expecting that to take most of the hit and not the cpu, and even when im rendering the cpu isnt doing much.

where as before the new install both cpu and gpu would be workign full power.

both cpu and gpu are new hardware

Posted: Thu Oct 06, 2016 5:06 pm
by NVTeam
As the test goes on, the number of cores used is increasing and so should the CPU utilization. However the tests are very quick so it may be not easy to see the exact amounts of utilization at that point. It is easier to see during actual render because the CPU and GPU load is more or less even then.

The frame size is small, which is why the GPU is not very fast as compared with the CPU. Try to increase the frame size to see if this changes in Optimize results.

Also, double-check that the GPU is correctly connected to the fastest PCI slot and is running at full speed (not locked in reduced frequency mode).

Vlad