fuel-plugin-lma-collector/doc/user/source/metrics/libvirt.rst

Every metric contains an instance_id field, which is the UUID of the instance for the Nova service.

CPU

• virt_cpu_time, the average amount of CPU time (in nanoseconds) allocated to the virtual instance in a second.
• virt_vcpu_time, the average amount of CPU time (in nanoseconds) allocated to the virtual CPU in a second. The metric contains a vcpu_number field which is the virtual CPU number.

Disk

Metrics have a device field that contains the virtual disk device to which the metric applies. For example, 'vda', 'vdb', and others.

• virt_disk_octets_read, the number of octets (bytes) read per second.
• virt_disk_octets_write, the number of octets (bytes) written per second.
• virt_disk_ops_read, the number of read operations per second.
• virt_disk_ops_write, the number of write operations per second.

Memory

• virt_memory_total, the total amount of memory (in bytes) allocated to the virtual instance.

Network

Metrics have an interface field that contains the interface name to which the metric applies. For example, 'tap0dc043a6-dd', 'tap769b123a-2e', and others.

• virt_if_dropped_rx, the number of dropped packets per second when receiving from the interface.
• virt_if_dropped_tx, the number of dropped packets per second when transmitting from the interface.
• virt_if_errors_rx, the number of errors per second detected when receiving from the interface.
• virt_if_errors_tx, the number of errors per second detected when transmitting from the interface.
• virt_if_octets_rx, the number of octets (bytes) received per second by the interface.
• virt_if_octets_tx, the number of octets (bytes) transmitted per second by the interface.
• virt_if_packets_rx, the number of packets received per second by the interface.
• virt_if_packets_tx, the number of packets transmitted per second by the interface.