LazProfiler

About

LazProfiler is an IDE addon which adds a One-Click-Profiler to Lazarus.

Screenshot

Download

• It's available through Online Package Manager (not yet).

System Requirements / Dependencies

• FPC trunk (needs generics)
• Lazarus trunk (revision 56254 and above)

Installation

• Use Online Package Manager (not yet)

Support page

needs to be set up

Using LazProfiler

Start profiling

• Open your project (if not done already)
• Choose Profile from Run menu:
  
• Use your program
• Close your program
• study LazProfiler output:
  

Show output

• Choose Profiler from View menu:
  

Cleanup profiler

In case the instrumenting of the sources produce not compileable code you can reset the profiler and tidy things up by choosing
Cleanup Profiler from Run menu:

Influencing profiling

Hints in source code

By default the profiling automatically starts. If you just want to profile some parts of your code you can surround it by two comments:

// start-profiler
code_to_profile;
// stop-profiler

Disable instrumenting

If you want to exclude procedures/functions from beeing instrumented,
just uncheck the checkbox in front of the procedure/function name
in the profiler output window.

How does it work

When profiling is started the following steps are done:

• project is build to test if project is okay
• all sources in the projects unit and include directories are backuped (except units below fpc and lazarus source directories)
• procedures and funtions in units are instrumented with special profiling code
• project is build with instrumented code
• instumented sources are deleted and backups are restored
• program is run with no debugger
• profiling result is shown when program ends

Known issues

• Profiling does not stop counting at ShowModal, ShowMessage, ...