Odoo's profiler is available at odoo/tools/profiler.py. In order to use the profiler in your code, import it into the file:

from odoo.tools.profiler import profile

After importing it, you can use the profile decorator on the methods. To profile a particular method, you need to add the profile decorator on it. Take a look at the following example. We put the profile decorator on the make_available method:

    @profile
    def make_available(self):
        if self.state != 'lost':
            self.write({'state': 'available'})
        return True

So, when this method is called, it will print the full statistics in the logs:

calls    queries   ms
library.book ------------------------ /Users/pga/odoo/test/my_library/models/library_book.py, 24

1         0        0.01     @profile
                            def make_available(self):
1         3        12.81           if self.state != 'lost':
1         7        20.55               self.write({'state': 'available'})
1         0        0.01            return True

Total:
1        10        33.39