Thissetting is not tunable.

AverageQueue Length

TheAverage Queue Length shows the average number of connections in the queue over the last
one-minute,ve-minute, and 15–minute intervals.
Thissetting is not tunable.

AverageQueuing Delay

TheAverage Queueing Delay is the average amount of time a connection spends in the
connectionqueue. This represents the delay between when a request connection is accepted by
theserver and when a request processing thread begins servicing the request. It is the Ticks
Spentdivided by the Total Connections Queued, and converted to milliseconds.
Thissetting is not tunable.

TicksSpent

Atick is a system-dependent value and provided by the tickPerSecond attribute of the server
elementin stats.xml. The ticks spent value is the total amount of time that connections spent
inthe connection queue and is used to calculate the average queueing delay.
Thissetting is not tunable.

TotalNumber of Connections Added

Thenew connections added to the connection queue. This setting is not tunable.
HTTP Listener (Listen Socket) Information
Thefollowing HTTP listener information includes the IP address, port number, number of
acceptorthreads, and the default virtual server. For tuning purposes, the most important eld in
theHTTP listener information is the number of acceptor threads.
Youcan have many HTTP listeners enabled for virtual servers, but at least one is enabled for
yourdefault server instance (usually http://0.0.0.0:80). The monitoring information
availablethrough the Admin Console does not show the HTTP listener information, because
thatinformation is available in the Admin Console on the conguration's HTTP Listeners tab.
Thefollowing is an example of how the HTTP listeners information appears in perfdump:
ListenSocket ls1:
------------------------
Address https://0.0.0.0:2014
Acceptor Threads 1
Default Virtual Server https-test
UsingMonitoringData to TuneYour Server
Chapter2 • Tuning Sun Java System Web Server 51