Unstable Performance OctaneRender Prime 2023.1.1 Tweet

[dopeless]

Hi,

I'm experiencing some problems with several latest Octane releases.
The rendering becomes very slow from time to time and I can not figure out the reason why.

For example, the scene renders at 3 Ms/sec on average in the viewport. But sometimes speed drops to 0.3 Ms/sec. I disabele and reenable some objects im my scene several times, and the speed gets back to normal. Or if I hit render, it starts to render at say 3 Ms/sec, but over time it drops to 1 Ms/sec. The GPU is not fully load, and the fans on GPU are barely spinning.

If I render in Keyshot, everythig works fine - the GPU is fully loaded all the time. But in Octane it feels like some kind of a safe mode. Sometimes I have to restart the Octane server, and sometimes I need to restart PC to get it back to normal.

I'm using 3090Ti and latest studio drivers (tried it with game drivers - same issues).

Any clues what's wrong?
Thanks.

[bepeg4d]

Hi,

Windows Task manager shows OpenGL usage, not CUDA usage by default.

Please, download and run GPU-Z:
https://www.techpowerup.com/gpuz/

You should need to check the GPU-Z Sensors tab while rendering, and in particular, Temperature, GPU Load and Power Consumption TDP.

ciao,
Beppe