# Basic CPU/ Mem/ NET/ Disk
**Basic CPU/ Mem/ NET/ Disk** displays metric information on the virtual machine (vm) about usage CPU, Memory, Network, and Disk on the virtual machine (vm) . On section Basic CPU/ Mem/ NET/ Disk displays several metrics including CPU Basic, Memory Basic, Network Traffic Basic, Memory Basic Percentage, and Disk Space Used Basic.
## **CPU Basic**
CPU Basic mdisplays workload metrics on the CPU and the following is a description of CPU activity based on color.
* Busy System in yellow ( ) means how much CPU is used by the system as a whole.
* Busy User in blue ( ) means how much CPU is used by the user.
* Busy Iowait in red ( ) meansthe time spent by the CPU waiting for an I/O operation to complete.
* Busy IRQs in orange (). IRQ (Interrupt Request) or Interrupt Request is a mechanism that exists within a virtual machine (vm) to notify the CPU that it requires attention.Busy IRQs meansinterrupt request mechanism used by a virtual machine (vm) to notify the CPU that it requires immediate attention.
* Busy Other in young( ) means the other machine is busy.
* Idle in green ( ) means the CPU is not active.
Basic CPU/Mem/NET/Disk (a)
## **Memory Basic**
Memory Basic mdisplays workload metrics on memory, and the following is an explanation of memory busyness based on color.
* RAM Total in light green() means the total physical memory capacity owned by the virtual machine (vm) .
* RAM Used in yellow() means the amount of memory that is being used by the operating system and applications at any one time.
* RAM Cache+Buffer withInblue color() means a certain amount of memory allocated for caching and buffering data is useful for improving system performance.
* RAM Free in dark green () means the amount of memory that is not used by the system.
* SWAP Used with colorred() means that much of the remaining SWAP space is currently used by the system in the virtual machine (vm) .
Basic CPU/Mem/NET/Disk (b)
## **Network Traffic Basic**
Displays workload metrics on network traffic. To see a description of network traffic activity based on the color located below the following metrics:
* recv ens3 with wgreen color () means the amount of data received by the ens3 network interface.
* recv itin yellow () means the amount of data received by the loopback interface.
* trans ens3in blue () means the amount of data sent by the ens3 network interface.
* trans lo in orange () means the amount of data sent through the loopback interface.
Basic CPU/Mem/NET/Disk (c)
## **Memory Basic Percentage**
Displays workload metrics on a basic percentage of memory and the following is an explanation of the basic memory description based on color.
* RAM Used in dark green () the amount of memory being used by the operating system and applications at any one time in percentage terms.
* RAM Cache + Buffer in blue () means a certain amount of memory allocated for data caching and buffering is useful for increasing system performance in a percentage measure.
* RAM Free in light green () means the amount of memory that is not used by the system in percentage size.
* SWAP Used in red () means the amount of SWAP remaining space currently used by the system in the virtual machine (vm) in percentage size.
Basic CPU/Mem/NET/Disk (d)
## **Disk Space Using Basic**
Displays workload metrics on a basic percentage of memory. To see a description of the activity then the basic percentage of memory based on the color located below the metrics is as follows:
* / in green() means the use of the root directory on the system.
* /boot/efi in yellow() means the use of the location directory where data related to the EFI boot system is stored (Extensible Firmware Interface).
* /run in blue () means the use of a temporary data storage directory that is needed while the system is running.
* /run/lock in orange() means the use of a lock file storage directory used by the system to avoid data corruption caused by concurrent access of several processes to certain resources.
* /run/snapd/ns in red() means the use of the package management system directory, while ns is the namespace.
* /run/user/0 in dark blue () means the use of a directory where files and runtime information are stored for the user with ID 0, which is usually root.
