Customize profiling settings for Java EE analysis

Typically, to analyze Java EE applications, select the J2EE Performance Analysis analysis type. By default, J2EE Performance Analysis collects data from all types of Java EE components, with no filters.

To modify these defaults:

1. Select the J2EE Performance Analysis analysis type and click Edit Options.

2. On the Components page, select the types of Java EE components from which to collect data.

3. On the Filters page, specify the hosts and transactions to monitor. The filters indicate the types of data that you do want to collect (that is, they include, rather than exclude). Also see About filtering and sampling.

4. On the Sampling page, you can limit the amount of data being collected by specifying a fixed percentage or a fixed rate of all the data to collect.

   • Sample a percentage of all transactions: The profiler will alternate between collecting and discarding calls.

     For example, with a setting of 25%, the first will be collected, the next 3 will be discarded.

   • Sample a specific number of transactions each minute: The first n calls (where n is the specified value) will be collected, and nothing else will be collected that minute. Thus, you will never receive data for more than n calls in any given minute.

5. Click Finish.

Results

Now, when you start profiling, the specified data will be collected.

Also see About filtering and sampling.