The keep-alive poll interval specifies the interval in seconds at which the system polls keep-alive connections for further requests. The default is 0.001 second, the lowest value allowed. It is set to a low value to enhance performance at the cost of CPU usage.
To tune the poll interval, edit the Poll Interval field on the configuration's Performance tab ⇒ HTTP tab, under Keep Alive Settings. In the command-line interface, use the poll-interval property in the wadm set-keep-alive-prop command.