Delgon

Thanks for the reply. I do not use any disk as a Parity, data on those drives is not that important, have a backup elsewhere, so there should be just read/write instructions. The Windows VM also uses passthrough SSD so there should not be any work done here too by the unRAID. I do not have any Dockers or other VMs running. Just unRAID + Windows VM, that's it. I have some plugins but those are rather basic, nothing that should rly hug the CPU resources afaik: CA Auto Update Applications Community Applications Dynamix System Statistics Dynamix System Temperature Fix Common Problems Nerd Tools Preclear Disks Statistics Unassigned Devices Unassigned Devices Plus User Scripts VFIO-PCI CFG For example, those are the 2 cores (4 threads) that are assigned to the unRAID and the system is running VM and doing just a preclear of 1 HDD. It adds up to above 200% (247) so ye, in some cases (not always) the CPU usage of unRAID needed more than 1c/2t. Thank you for pointing me to another thread, I'll definitely also read it and test things out, a lot of information everywhere about it so it is hard to read everything

I started using unRAID to transform my Gaming PC into file server and gaming PC in one. 9900k @ 4.9, 32GB RAM. I read a little about how to set up VMs and other things and stumbled upon repeated info that +- "1 hyperthreaded core (1 core -> 2 threads) should suffice for the unRAID system itself" and other threads can be allocated to my Gaming VM. What I noticed is that with file transfers to and from the disk, like preclear, or just transferring data from one drive to another using rsync or in Windows, the 1 thread is getting MAXED. Both threads go to 100% and stay like that pretty much all the time with some fluctuations. That caused my Gaming VM to either have some hiccups in the FPS or some weird audio lags. I leave around 4GB or RAM for the unRAID itself and the rest is allocated to the VM. I'm not doing anything super unusual (I think) as there are just 6 HDDs in my array and my Windows VM there, no dockers, no plex or other things that could eat up the resources. Is this behaviour where the system itself needs 2c/4t of the horsepower to function properly? I read in many places that 1c/2t should be enough. I'm using CPU Isolation to isolate my unRAID cores and VM cores to make sure that they are where they should be. 1c/2t unRAID + 7c/14t Windows VM -> Can cause lags and some performance decrease when I transfer files, clear HDDs 2c/4t unRAID + 6c/12t Windows VM -> Works without problems so far. No Isolation, 7c/14t Windows VM -> Can have a lot of hiccups in games. Probably when the work is shared with threads on unRAID and VM itself causing it to have too much to work on it. This is the reason I went with CPU Isolation thing. Assigning the 2 cores for unRAID solves the problem but that also means my VM has less cores Do you think it is normal or should I look into it?