virtualbox.org

I used to love VirtualBox, but windows 10 x64 is unacceptably slow under Linux host!!!

I have the strong up-to-date HW (6600K+16GB+SSD) under Ubuntu16.04 x64, with it I run Windows 10x64 in Virtualbox 6.0.12 (using 4 cores and 4GB of ram) but it painfully slow!! When the Windows’ guest idles with 0.5-1% of cpu load, my host machine shows 18-20% load (in htop)!!! When I move a window in windows guest the cpu load on the host peaks at 160-200%, when I simply move the mouse in the guest(!) cpu peaks at 50+% in the host. WTF? I googled it, I used all sorts of tricks, like switching to ICH9, giving more RAM, more cores, turning on/off 2D/3D accelerations, turning off all effects in windows, etc. but utterly without success. I had a feeling that this is simply the best what VirtualBox can do for W10 virtualization… Am I right? Is there any win10 guest installation example in which mouse moves do not cause 50% cpu load on the host?

PS. Yes, hardware virtualization is enabled in my bios, and Guest Additions are installed.

No log, no comment.

I will gladly provide any log that needed. Please tell, what do you need, I will readily do it

Instructions are all over the site, but ok, one more time.

Please post a VM log file. With the VM fully shut down, right click and "Show Log" in the GUI, save "VBox.log" (no other file) to a zip, and attach the zip here.

Thanks a lot for your patience and stamina!
I have attached my VBox.log as you prescribed.

Thanks everyone for help and useful input. The problem is solved. I have virtualized Windows 10 with VMware Workstation 15 Player and W10 started to work super fast without extreme host's cpu-overload