BAUProfiler

BAUProfiler is a profiling framework for Java applications based on the profiling requirements of the TornadoVM

Requirements

Profiler

• Singleton profiler
• Thread-safe profiling
• Handles profiling requests async (variable # of handlers)
• Groups profiling requests using a supplied groupid
• Optional cached profiling requests added to a given group (at a later time) or shared between multiple groups
• Profiling call args are instances of user-defined classes that extend ConvertableProfile
• User-defined classes allow for a mix of logging and profiling
• Optional return of timer instance from profiling call, also passed to user-defined class, allowing for information extraction during [iv] (see below)
• User-defined classes implement methods used by the profiler to:
  1. Perform preprocessing (alternative to processing in constructor)
  2. Invalidate requests
  3. Order requests based on dependencies
  4. Finalize field values prior to conversion to the desired output format
• Provides a synchronisation point, prior to which the user-defined class can be externally (directly by the user) or internally (using methods [i] or [iv] above) modified, and after which the final conversion to the desired output format occurs.
• Pluggable output format with JSON plugin provided

JSON plugin

• Generates ConvertableProfiles from user-defined classes that extend Profile and are annotated with supplied JSON annotations
• Assembles the ConvertableProfiles to create expected output