Solved If I have old CPU (Xenon 1230 v.3), how much processor core I have to set for guest?

[jeltoesolnce]

Hello. I have old dellserver (Xeon 1230 V.3, 32 Gb, 256 SSD Samsung EVO) for database/application server on guest Ubuntu. There is one VirtualBox whose performance I want to increase. I have 4 core. Can I all four core set to guest system?

 

[cracauer@]

Yes.