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Why not use GPU fully when generating optimized media?
Posted:
Thu Aug 09, 2018 11:38 amby Philipp Ringli
As you can see in the screenshot, the GPU is only used to about 25% of its potential when creating optimized media. I am using CUDA with a 1080ti.
- Screen Shot 2018-08-09 at 11.55.23.png (75.67 KiB) Viewed 727 times
Is there a reason for it?
Re: Why not use GPU fully when generating optimized media?
Posted:
Thu Aug 09, 2018 12:02 pmby Uli Plank
That’s a CPU job. See what they are doing. Plus, your media should be fast.
Re: Why not use GPU fully when generating optimized media?
Posted:
Thu Aug 09, 2018 12:36 pmby Philipp Ringli
So, what's the GPU doing at 25-30%?
It's reading/writing at about 70–80 Mb/s. The media is way faster, capable of 500 Mb/s read/write.
Re: Why not use GPU fully when generating optimized media?
Posted:
Thu Aug 09, 2018 12:53 pmby Andrew Kolakowski
For example debayering if your source is RAW.
All intermediate codecs are CPU based for decoding/encoding.
Your CPU is "nicely busy" so all looks good.
Re: Why not use GPU fully when generating optimized media?
Posted:
Thu Aug 09, 2018 4:00 pmby Philipp Ringli
I see, thank you for the explanation!