■Numberof Invocations is the total number of times that the function was invoked. This
diersfrom the number of requests in that a function could be called multiple times while
processingone request. The percentage column for this row is calculated in reference to the
totalnumber of invocations for all of the buckets.
■Latencyis the time in seconds that Web Server takes to prepare for calling the function.
■FunctionProcessing Time is the time in seconds that Web Server spent inside the function.
Thepercentage of Function Processing Time and Total Response Time is calculated with
referenceto the total Request Processing Time.
■TotalResponse Time is the sum in seconds of Function Processing Time and Latency.
Thefollowing is an example of the performance bucket information available through
perfdump:
Performance Counters:
------------------------------------------------
Average Total Percent
Total number of requests: 62647125
Request processing time: 0.0343 2147687.2500
default-bucket (Default bucket)
Number of Requests: 62647125 (100.00%)
Number of Invocations: 3374170785 (100.00%)
Latency: 0.0008 47998.2500 ( 2.23%)
Function Processing Time: 0.0335 2099689.0000 ( 97.77%)
Total Response Time: 0.0343 2147687.2500 (100.00%)
MonitoringCurrent Activity Using the Java ESMonitoringConsole
Thestatistics available through the Web Server Admin Console and the command-line
interfaceare also available through the Java ES Monitoring Console. Though the information is
thesame, it is presented in a dierent format, using the Common Monitoring Data Model
(CMM).Though this guide covers monitoring using tools available in the Web Server, you
couldalso monitor your server using the Java ES monitoring tools. For more information on
usingthe Java ES monitoring tools, see Sun Java Enterprise System 5 Monitoring Guide.Use the
samesettings to tune the server, regardless of the what monitoring method you are using.
MonitoringServer Performance
Chapter1 • Performance and Monitoring Overview 37