Monitor system resource usage by VirtualBox 7.0 and your VMs - Virtualization - Tutorials

Since version 7 of VirtualBox, you can monitor the use of your computer's resources by your different virtual machines.
To do this, go to : Tools -> Activities.

As you can see, you will be able to monitor :

Host CPU Load : the use of the physical processor (CPU) (host) by the user (User) and by the kernel (Kernel).
Host RAM Usage : physical RAM usage (Host) and what is Free.
Host File System : using the host filesystem.

Below, you will find the list of virtual machines currently started with :

VM Name : their name.
CPU Guest : guest CPU usage percentage.
That is, what you would see in the guest OS task manager.
CPU VMM : VMM hypervisor CPU usage.
RAM Usage/Total : amount of RAM used out of total available.
RAM % : RAM usage percentage.
Network Up Rate : rate of use of the network in sending.
Network Down Rate : ditto, but in reception (download).
Network Up Total : amount of data sent over the network.
Network Down Total : amount of data received (downloaded) from the network.
Disk Read Rate : read disk usage rate.
Disk Write Rate : same, but in writing.
Disk Read Total : amount of data that has been read from disk.
Disk Write Total : same, but for writing.
VM Exits : number of transitions between the running virtual machine and the hypervisor (VMM).

To get more information about resource usage for a specific virtual machine, select the desired virtual machine and click : VM Activity.

Several graphs will appear to show you :

CPU Load : guest processor (CPU) utilization (Guest Load) and hypervisor load (VMM Load).
RAM Usage : guest RAM usage and the amount of total RAM allocated to the VM.
Note : requires the installation of VirtualBox guest additions in the virtual machine.
Network Rate : the use of the network in reception / download (Received) and in sending (Transmitted).
Disk IO Rate : the use of the hard disk in writing (Written) and in reading (Read).
VM Exits : number of times a transition between virtual machine (VM) and hypervisor (VMM) is performed.