Hi PaQ,

> So for the next test I keep nvidia thread optimisation on 'auto', but I
> disable the intel hypertreading on my mobo.

So it looks there that hyperthreading being turned on in the bios by itself doesn't harm anything but that there's not much to gain there by one thread per "virtual core", and that the increased contention ends up as a slight net negative.

This probably has to do with the whole process being memory bandwidth intensive instead of only calculation intensive which would suit hyperthreading somewhat better I think.

I think it will probably be best to go with a default of one thread per "real core" instead of one per "virtual core" for this particular thing.

- Michael