The above screen displays a number of statistics specific to the Real Server or Virtual Service.

Round trip times between the LoadMaster and Real Server are displayed. The performance of the Real Servers is monitored with the following two measurements:

  • How long the Real Server takes to respond to the request (first byte).
  • How long the Real Server takes to send all the data (last byte) - response time.

In the above graphic the Request/Response Current Max figures are 2 / 3329. This means that it took the Real Server a maximum of 2ms to respond to the request (first byte) and a max of 3329ms to send all the data and this is the measurement of the response time.

Note: Round Trip Time (RTT) to the server cannot be measured if using re-encrypt.
Note: Request/Response times are not applicable if the service being used is not a HTTP-HTTP/2-HTTPS service.
Note: Clicking Reset Statistics in the Debug Options screen (System Configuration > System Administration > System Log Files > Debug Options) clears all the values.

For each RTT or request/response time, the following values are measured:

  • Current Average: The average time (in milliseconds (ms)) over the last 5 seconds (or since the last statistics reset).
  • Current Max: The current maximum time (in ms) - in the last 5 seconds (or since the last statistics reset).
  • Current Min: The current minimum time (in ms) - in the last 5 seconds (or since the last statistics reset).
  • Long Term Avg: The average time over the whole period since the Virtual Service started handling traffic (or since the last statistics reset).
  • Long Term Max: The all-time maximum value (in ms) since the Virtual Service started handling traffic (or since the last statistics reset).
  • Long Term Min: The all-time minimum value (in ms) (or since the last statistics reset).

Values are only present if values have been recorded. For example, no Current Max displays if no traffic has passed through the Virtual Service in the last five seconds or if the Virtual Service cannot monitor the specific values.

Note: The Current Average, Current Max, Current Min, Long Term Avg, Long Term Max, and Long Term Min for Virtual Services and Real Servers are also available over SNMP.