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

CPU

Metrics have a cpu_number field that contains the CPU number to which the metric applies.

• cpu_idle, the percentage of CPU time spent in the idle task.
• cpu_interrupt, the percentage of CPU time spent servicing interrupts.
• cpu_nice, the percentage of CPU time spent in user mode with low priority (nice).
• cpu_softirq, the percentage of CPU time spent servicing soft interrupts.
• cpu_steal, the percentage of CPU time spent in other operating systems.
• cpu_system, the percentage of CPU time spent in system mode.
• cpu_user, the percentage of CPU time spent in user mode.
• cpu_wait, the percentage of CPU time spent waiting for I/O operations to complete.

Disk

Metrics have a device field that contains the disk device number the metric applies to. For example, 'sda', 'sdb', and others.

• disk_merged_read, the number of read operations per second that could be merged with already queued operations.
• disk_merged_write, the number of write operations per second that could be merged with already queued operations.
• disk_octets_read, the number of octets (bytes) read per second.
• disk_octets_write, the number of octets (bytes) written per second.
• disk_ops_read, the number of read operations per second.
• disk_ops_write, the number of write operations per second.
• disk_time_read, the average time for a read operation to complete in the last interval.
• disk_time_write, the average time for a write operation to complete in the last interval.

File system

Metrics have a fs field that contains the partition's mount point to which the metric applies. For example, '/', '/var/lib', and others.

• fs_inodes_free, the number of free inodes on the file system.
• fs_inodes_percent_free, the percentage of free inodes on the file system.
• fs_inodes_percent_reserved, the percentage of reserved inodes.
• fs_inodes_percent_used, the percentage of used inodes.
• fs_inodes_reserved, the number of reserved inodes.
• fs_inodes_used, the number of used inodes.
• fs_space_free, the number of free bytes.
• fs_space_percent_free, the percentage of free bytes.
• fs_space_percent_reserved, the percentage of reserved bytes.
• fs_space_percent_used, the percentage of used bytes.
• fs_space_reserved, the number of reserved bytes.
• fs_space_used, the number of used bytes.

System load

• load_longterm, the system load average over the last 15 minutes.
• load_midterm, the system load average over the last 5 minutes.
• load_shortterm, the system load average over the last minute.

Memory

• memory_buffered, the amount of buffered memory in bytes.
• memory_cached, the amount of cached memory in bytes.
• memory_free, the amount of free memory in bytes.
• memory_used, the amount of used memory in bytes.

Network

Metrics have an interface field that contains the interface name the metric applies to. For example, 'eth0', 'eth1', and others.

• if_collisions, the number of collisions per second per interface.
• if_dropped_rx, the number of dropped packets per second when receiving from the interface.
• if_dropped_tx, the number of dropped packets per second when transmitting from the interface.
• if_errors_rx, the number of errors per second detected when receiving from the interface.
• if_errors_rx_crc, the number of received frames with wrong CRC (cyclic redundancy check) per second.
• if_errors_rx_fifo, the number of received frames dropped per second due to FIFO buffer overflows.
• if_errors_rx_frame, the number of received frames with invalid frame checksum (FCS).
• if_errors_rx_length, the number of received frames with a length that doesn't comply with the Ethernet specification.
• if_errors_rx_missed, the number of missed packets when receiving from the interface.
• if_errors_rx_over, the number of received frames per second that were dropped due to an hardware port receive buffer overflow.
• if_errors_tx, the number of errors per second detected when transmitting from the interface.
• if_errors_tx_aborted, the number of aborted frames per second when transmitting from the interface
• if_errors_tx_carrier, the number of times per second the interface has lost its link connection to the switch.
• if_errors_tx_fifo, the number of transmitted frames per second dropped due to FIFO buffer overflows.
• if_errors_tx_heartbeat, the number of heartbeat errors per second.
• if_errors_tx_window, the number of late collisions per second when transmitting from the interface.
• if_multicast, the number of multicast packets per second per interface.
• if_octets_rx, the number of octets (bytes) received per second by the interface.
• if_octets_tx, the number of octets (bytes) transmitted per second by the interface.
• if_packets_rx, the number of packets received per second by the interface.
• if_packets_tx, the number of packets transmitted per second by the interface.

Processes

• processes_count, the number of processes in a given state. The metric has a state field (one of 'blocked', 'paging', 'running', 'sleeping', 'stopped' or 'zombies').
• processes_fork_rate, the number of processes forked per second.

Swap

• swap_cached, the amount of cached memory (in bytes) that is in the swap.
• swap_free, the amount of free memory (in bytes) that is in the swap.
• swap_io_in, the number of swap bytes written per second.
• swap_io_out, the number of swap bytes read per second.
• swap_used, the amount of used memory (in bytes) that is in the swap.

Users

• logged_users, the number of users currently logged in.