29133 response 192.6.7.7 2 https-test GET /qa_webapp/CheckNetwork.class service-j2ee
29133 response 192.6.7.7 2 https-test GET /qa_webapp/CheckNetwork.class service-j2ee
29133 response 192.6.7.7 2 https-test GET /qa_webapp/CheckNetwork.class service-j2ee
29133 response 192.6.7.7 2 https-test GET /qa_webapp/CheckNetwork.class service-j2ee
29133 request 192.6.7.7 0
29133 request 192.6.7.7 0
29133 request 192.6.7.7 0
29133 request 192.6.7.7 0
29133 request 192.6.7.7 0
29133 response 192.6.7.7 0 https-test GET /file1.shtml shtml_send
29133 request 192.6.7.7 0
29133 request 192.6.7.7 0
29133 response 192.6.7.7 0 https-test GET /find-pathinfo-forward/pathinfo.pl/p/info send-cgi
29133 request 192.6.7.7 0
29133 updating 192.6.7.7
29133 updating 192.6.7.7
29133 updating 192.6.7.7
29133 updating 192.6.7.7
.
.
.
UsingPerformance Buckets
Performancebuckets allow you to dene buckets and link them to various server functions.
Everytime one of these functions is invoked, the server collects statistical data and adds it to the
bucket.For example, send-cgi andservice-j2ee arefunctionsused to serve the CGI and Java
servletrequests respectively. You can either dene two buckets to maintain separate counters
forCGI and servlet requests, or create one bucket that counts requests for both types of
dynamiccontent. The cost of collecting this information is minimal, and the impact on the
serverperformance is usually negligible. This information can later be accessed using perfdump.
Thefollowing information is stored in a bucket:
■Nameof the bucket. This name associates the bucket with a function.
■Description.A description of the functions with which the bucket is associated.
■Numberof requests for this function. The total number of requests that caused this
functionto be called.
■Numberof times the function was invoked. This number might not coincide with the
numberof requests for the function, because some functions might be executed more than
oncefor a single request.
■Functionlatency or the dispatch time. The time taken by the server to invoke the function.
■Functiontime. The time spent in the function itself.
Thedefault-bucket ispredened by the server. It records statistics for the functions not
associatedwith any user-dened bucket.
MonitoringServer Performance
Chapter1 • PerformanceandMonitoring Overview 35