- System requirements
- Profiler architecture
- Running the profiler
- Profiler activation
- Running applications with the profiler
- Connect to profiled application
- Troubleshoot connection problems
- Solving performance problems
- CPU profiling
- Deadlock detector
- Memory profiling
- Garbage collection
- Monitor profiling
- Exception profiling
- Probes: monitor events of various kinds
- Performance Charts
- Inspections: automatic recognition of typical problems
- Automatically trigger actions on event
- Summary, snapshot annotation, automatic deobfuscation
- IDE integration
- Time measurement (CPU time, wall time)
- Snapshot directory customization
- Export of profiling results to HTML, CSV, XML, plain text
- Profiler Java API
- Profiler HTTP API
- Command line tool to control profiling
- FAQ: How to profile in my scenario?
Filters help you to ignore methods and instances of classes which you are not interested in, such as standard Java classes, libraries, framework internals, application server core classes etc., so you can more easily focus on own classes of the profiled application.
Filters are applied in the profiler UI
While reviewing profiling results in a snapshot or in live views, you can use different filters or use none at all. In other words, you do not need to start a new profiling session to start or stop using filters. Views are automatically updated when filter settings are changed.
Filters reduce the depth of call trees and length of stack traces, by skipping successive calls of methods from filtered classes, so you can more easily see the methods of the profiled application.
Filters are applied to views where method call stacks are shown, as well as to hot spot and method list views.
Non-filtered methods are marked with a filled arrow . Filtered methods have an outlined arrow :
Some automatic inspections use filter settings to focus on potential problems in own code of profiled application.
Switch between applying and not applying filters in the profiler UI
A quick way to turn applying the configured filters on/off is to use Settings | Apply Filters.
Use Settings | Filters... in the main menu to configure filters.
Each filter is specified as a list of class or method patterns to be filtered, one pattern per line.
To filter all methods in given class(es), use this format:
<fully qualified class name>
To filter particular methods in given class(es), use this format:
<fully qualified class name> : <method name> ( <comma-separated parameter types> )
Wildcards ('*') are accepted.
foo.bar.MyClass - filter all methods of given class
foo.bar.MyClass:*(*) - same as above
bar.* - filter methods in all matching classes
bar.* : print*(*) - filter all methods from bar.* with name starting with 'print' and any number of parameters
* : toString() - filter toString() in all classes
com.foo.* : <init>(int, String) - filter constructors of classes in com.foo.* with given signature
To specify classes or methods which must not be filtered, prepend the pattern with '+'.
Example: filter classes in packages 'foo' and 'bar' (with subpackages), but not in package 'bar.myclasses' (with subpackages):