OS Metrics

List of OS Metrics

System Metrics

  • system.disk.free

  • system.disk.total

  • system.disk.used

    Type:        gauge, bytes
    Description: System disk usage statistics.
    
  • system.disk.in_use

    Type:        gauge, percent
    Description: System disk usage statistics, percentage.
    
  • system.io.iops_r

  • system.io.iops_w

    Type:        counter, integer
    Description: Number of reads or writes per sampling window.
    
  • system.io.kbs_r

  • system.io.kbs_w

    Type:        counter, kilobytes
    Description: Number of kilobytes read or written.
    
  • system.io.wait_r

  • system.io.wait_w

    Type:        gauge, milliseconds
    Description: Time spent reading from or writing to disk.
    
  • system.load.1

  • system.load.5

  • system.load.15

    Type:        gauge, float
    Description: Number of processes in the system run queue, averaged over the last 1, 5,
                 and 15 min.
    
  • system.mem.available

  • system.mem.buffered

  • system.mem.cached

  • system.mem.free

  • system.mem.shared

  • system.mem.total

  • system.mem.used

    Type:        gauge, bytes
    Description: Statistics about system memory usage.
    
  • system.mem.pct_used

    Type:        gauge, percent
    Description: Statistics about system memory usage, percentage.
    
  • system.net.bytes_rcvd

  • system.net.bytes_sent

    Type:        counter, bytes
    Description: Network I/O statistics. Number of bytes received or sent, per network
                 interface.
    
  • system.net.drops_in.count

  • system.net.drops_out.count

    Type:        counter, integer
    Description: Network I/O statistics. Total number of inbound or outbound packets
                 dropped, per network interface.
    
  • system.net.packets_in.count

  • system.net.packets_out.count

    Type:        counter, integer
    Description: Network I/O statistics. Number of packets received or sent, per network
                 interface.
    
  • system.net.packets_in.error

  • system.net.packets_out.error

    Type:        counter, integer
    Description: Network I/O statistics. Total number of errors while receiving or sending,
                 per network interface.
    
  • system.net.listen_overflows

    Type:        counter, integer
    Description: Number of times the listen queue of a socket overflowed.
    
  • system.swap.free

  • system.swap.total

  • system.swap.used

    Type:        gauge, bytes
    Description: System swap memory statistics.
    
  • system.swap.pct_free

    Type:        gauge, percent
    Description: System swap memory statistics, percentage.
    

Agent Metrics

Note:
Agent metrics are available only if you are using NGINX Amplify Agent.
  • amplify.agent.status

    Type:        internal, integer
    Description: 1 - agent is up, 0 - agent is down.
    
  • amplify.agent.cpu.system

  • amplify.agent.cpu.user

    Type:        gauge, percent
    Description: CPU utilization percentage observed from the NGINX Amplify Agent process.
    
  • amplify.agent.mem.rss

  • amplify.agent.mem.vms

    Type:        gauge, bytes
    Description: Memory utilized by the NGINX Amplify Agent process.