You should consider installing the VirtualBox Guest Additions a must for every VM you create. Your host machine should have at least 1 GB of RAM and plenty of CPUs remaining so the host OS and VirtualBox can function smoothly. When you commit resources for the guests, do not overextend your RAM and CPUs in such a way that you leave the host grinding to a halt. With the VM powered down, you can do this in Settings | System for the VM by sliding the Processor(s) slider to the right to increase the CPUs ( Figure B). If you’re setting up a VM for a server that demands heavy processor use, your best bet is to up the amount of CPUs VirtualBox will hand over to the VM. Although that will work in some cases, there might be instances where more processors would be advantageous over a significant amount of RAM.
When creating a new VM, your inclination might be to bump up the RAM used to ensure a smooth running guest. Note about this: The performance increase will be significant when used with spinning hard drives and less so with solid state drives. Instead of using dynamic disks, opt for fixed disks ( Figure A) and give the disk plenty of space. Why? Because as you use space on a dynamically allocated virtual hard disk, VirtualBox must accommodate and adjust the VM’s storage space, which causes the performance to take a hit. However, the dynamically allocated disk is not nearly as efficient as the fixed disk. This makes sense, especially when you are limited in space and aren’t certain how much space you’ll need for your VM.
Generally speaking, when we allot storage space for our VMs, we stick with the default dynamically allocated disk types. How to control the data funnel: Follow these 3 best practices How to update Portainer to the latest version Realizing opportunity at the edge with a distributed cloud database VirtualBox admins enjoy a lot of flexibility, but what about performance? Follow these tips to help your VMs boost the performance of your guests. In some cases, those VMs are powered by the popular and free VirtualBox. Many data centers rely on virtual machines (VMs). If your VirtualBox virtual machines are lagging in performance, check out these five tips. How to improve VirtualBox guest performance in five steps
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