How to restrict to cycles use only 90% of gpu? For example redshift use always between 80-90% and because of that i can work with something else when render on video card. But when i put render on cycles i can forgot about using PC while rendering.

  • $\begingroup$ Apparently my rep is too low for a comment. Which I would have prefered to do. As this is something of a duplicate question. The limiting process is explained here. $\endgroup$ – Terus Jul 9 '15 at 4:48
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    $\begingroup$ I don't think is a duplicate at all. That thread refers to the CPU, not limiting the GPU. $\endgroup$ – user1853 Jul 9 '15 at 6:42
  • $\begingroup$ You should really let the computer work. Rendering is one of the most demanding tasks for a computer. Unless you have a very powerful one multitasking will be limited... $\endgroup$ – user1853 Jul 9 '15 at 6:47

From the Blende manual on GPU Rendering

Why is Blender unresponsive during rendering?

While a graphics card is rendering, it can not redraw the user interface, which makes Blender unresponsive. We attempt to avoid this problem by giving back control over the GPU as often as possible, but a completely smooth interaction can’t be guaranteed, especially on heavy scenes. This is a limitation of graphics cards for which no true solution exists, though we might be able to improve this somewhat in the future.

If possible, it is best to install more than one GPU, using one for display and the other(s) for rendering.

  • $\begingroup$ i consider - if others gpu renders can be responsive (in my example redshift in maya - while redshift ipr rendering maya fully functional) during rendering then in blender must be some options....well if so in cycles then i will hope developers add this (in redshift for example devs somehow control gpu usage in 80-90% load) in future... $\endgroup$ – bnzs Jul 10 '15 at 5:40

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