- System requirements
- Profiler architecture
- Running the profiler
- Profiler activation
- Start profiling
- Connect to profiled application
- Capturing snapshots
- Solving performance problems
- CPU profiling
- Threads
- Memory profiling
- Garbage collection
- Exception profiling
- Probes: monitor higher level events
- Performance Charts
- Inspections: automatic recognition of typical problems
- Automatically trigger actions on event
- Summary, snapshot annotation, automatic deobfuscation
- Time measurement (CPU time, wall time)
- Filters
- Snapshot directory customization
- Export of profiling results to HTML, CSV, XML, plain text
- Profiler API
- Profiler HTTP API
- Command line tool to control profiling
- Settings
Exception profiling
"Exceptions" tab shows exceptions which were thrown in the profiled application.
Exceptions may be grouped by their exception class or by thread in which they occurred. Selecting an exception in the upper table allows viewing the exception stack traces.
Checkbox "Show exceptions thrown and caught inside filtered methods" enables to filter out exceptions which have been thrown and caught in methods of library classes. By default, the checkbox is unselected, as such kind of exceptions are usually of no interest when profiling your application.
You can clear recorded exceptions with the help of
toolbar button.
You can compare exception statistics of two snapshots with the help of File | Compare Snapshot with....
Start/stop exception profiling
Exception profiling helps discovering performance issues and logic errors. In most cases, there is no significant overhead of collecting this information.
However, you may want to stop it to minimize profiling overhead.
The profiling is enabled by default, unless the
exceptions=off startup option is specified.
When you are connected to the profiled application, use
toolbar button to start/stop the profiling.
Actions
The following actions are available in the popup menu:
- Lines can be copied by using File | Copy (Ctrl+C).
- File | Export to... (Ctrl+S) - exports view to different formats.
- Tools | Open in IDE (F7) - opens method declaration in IDE editor (see IDE integration).